what are the anatomical structures of the body

What are the 7 anatomical parts?

The human body is divided into regions. The main ones in the human body are the head, neck, thorax, abdomen, pelvis, together with the upper and lower extremities.

What are the 5 anatomical levels of the human body?

These include the chemical, cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels.

What is an example of a anatomical structure?

Organs, tissues, and cells are all anatomical structures.

How many anatomical structures are there?

In 1998 this work was supplanted by the Terminologia Anatomica, which recognizes about 7,500 terms describing macroscopic structures of human anatomy and is considered to be the international standard on human anatomical nomenclature.

What body anatomy means?

Anatomy is the science that studies the structure of the body. On this page, you'll find links to descriptions and pictures of the human body's parts and organ systems from head to toe.

What is the 11 system of human body?

The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems. The VA defines 14 disability systems, which are similar to the body systems.

What are the three types of anatomical structures?

Anatomical Structures: Homologous, Analogous & Vestigial.

What are the 4 main anatomical positions?

Anatomically, there are four main positions: supine, prone, right lateral recumbent, and left lateral recumbent.

What are the 3 types of anatomy?

Key Points. Gross anatomy is subdivided into surface anatomy (the external body), regional anatomy (specific regions of the body), and systemic anatomy (specific organ systems).

What are 8 anatomical terms?

To compare the location of body parts relative to each other, anatomy uses some universal directional terms: anterior, posterior, ventral, dorsal, distal, proximal, medial, lateral, median, superior, inferior, external, internal, frontal, occipital, rostral, caudal, superficial, deep, central, peripheral, ipsilateral, ...

What are the 12 main body parts?

Scientific viewThe brain. The brain is the control centre of the nervous system and is located within the skull. ... The lungs. The lungs are two sponge-like, cone-shaped structures that fill most of the chest cavity. ... The liver. ... The bladder. ... The kidneys. ... The heart. ... The stomach. ... The intestines.

What are the 12 system of human body?

The different systems of our body include- cardiovascular system, endocrine system, digestive system, respiratory system, excretory system, lymphatic system, nervous system, muscular system, and skeletal system.

What are the 5 levels of organization in our bodies from smallest to largest?

The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.

What are the 4 main anatomical positions?

Anatomically, there are four main positions: supine, prone, right lateral recumbent, and left lateral recumbent.

What are 8 anatomical terms?

To compare the location of body parts relative to each other, anatomy uses some universal directional terms: anterior, posterior, ventral, dorsal, distal, proximal, medial, lateral, median, superior, inferior, external, internal, frontal, occipital, rostral, caudal, superficial, deep, central, peripheral, ipsilateral, ...

What are the Level 4 organs?

Level 4: Organ Systems While most organ systems control a few specific physiological processes, some processes are more complex and require multiple organ systems to work together. For example, blood pressure is controlled by a combination of the renal system (kidneys), the circulatory system, and the nervous system.

What do you mean by human anatomy?

Anatomy is the study of the structure of an object. Human anatomy deals with the way the parts of humans interact to form a functional unit.

What do you understand by human physiology?

Human Physiology deals with the mechanical, biochemical and physical functions of humans. It serves as the foundation of modern medicine. It is the...

Who is the father of human physiology?

Claude Bernard is the father of human Physiology. He is also referred to as the father of modern experimental Physiology.

What is the importance of human physiology?

Human physiology lays the foundation upon which our knowledge of life is built. It helps us to know how to treat diseases and how to manage stress...

Who is the father of human anatomy?

Andreas Vesalius is known as the father of human anatomy. He was Belgian born in the family of physicians. His most famous work, Fabrica of Andreas...

What are the different types of anatomy?

There are two different types of anatomy- gross anatomy and microscopic anatomy. Gross anatomy deals with things that can be seen with the naked ey...

How is human anatomy relevant?

Human anatomy helps us to understand the structure and relationship of all parts of the body. It also helps us to know the characteristics of diffe...

How are anatomy and physiology different from each other?

Anatomy helps us to know about the structure of the different body parts while physiology studies the functions and relationships of body parts.

What are the important organs of the human body?

The important organs of the body include- brain, lungs, heart, kidney, liver, stomach, intestines, bladder.

What is the body structure that gives shape?

Skeleton. The skeleton is a framework of bones, ligaments, and cartilages that gives the body shape. Apart from giving shape, the spinal cord that runs along the human body connects the brain to other parts of the body. Also, it provides a protective casing for vital organs in our bodies.

Which branch of biology deals with the study of structure and parts of the human body?

Human Anatomy. The branch of biology that deals with the study of structure and parts of the human body is called Human Anatomy. The Study of anatomy is further divided into two sections. The first section is called Gross Anatomy and deals with the study of structures that can be seen without a microscope.

What is the level of many organs of the same type carrying out a single process called?

v) Organ System Level- Many organs of the same type, carrying out a single process is called Organ System Level.

What is the study of the human body?

The study of the human body comprises of-. 1) Anatomy - Involves the study of structure and parts of the human body. 2) Physiology - Involves the study of chemical and physical functions carried out by organs and cells in a human body. 3) Histology - Involves the study of the anatomy of cells and tissues.

What is the basis of morphology?

In every individual or organism, a cell constitutes the basis of their morphology. Many cells unite to form a tissue. Many similar tissues come together to form an organ. Many organs constitute an organ system and thus an individual. 1) Anatomy - Involves the study of structure and parts of the human body.

How do muscles help us?

Muscles are an inseparable part of our body and are attached to bone through the tendons. They help us in locomotion along with the bones. They help in the movement of the body, maintain posture, and help circulate blood throughout the body. Not only for locomotion, but muscles also aid the movement of internal organs.

How many bones are in the axial skeleton?

Bones in the human skeleton are divided into. Axial Skeleton - Bones of the skull and trunk of vertebra form the axial skeleton. Out of the total of 206 bones, 80 bones constitute the axial skeleton. The bones in the axial skeleton include- Vertebra, Coccyx, Sacrum, Ribs, and Sternum.

How many parts of the human body are there?

Human body parts comprise a head, neck and four limbs that are connected to a torso.

What is the study of the human body?

Human Anatomy is the scientific study of form and shapes of human beings. The skeleton also protects several vital organs such as the heart, lungs and the liver. Bones are attached to other bones through ligaments, a fibrous connective tissue. Joints are points at which two bones meet.

What is the cranial cavity?

The cranial cavity is the space within the skull, it protects the brain and other parts of the central nervous system. The lungs are protected in the pleural cavity.

Why is anatomy important?

Human anatomy helps us to understand the structure and relationship of all parts of the body. It also helps us to know the characteristics of different body parts.

Why is human physiology important?

Human physiology lays the foundation upon which our knowledge of life is built. It helps us to know how to treat diseases and how to manage stress laid upon us by different environments.

How many bones do humans have?

The framework that enables us to do all these activities is the skeleton. Humans have as much as 300 bones at birth. However, the bones start to fuse with age.

How did we gain anatomical knowledge?

Most of our anatomical insight was gained through the dissection of corpses (cadavers), and for a long time, it was the only way we could gain anatomical knowledge about the human body.

Which body system is based on the function of the body part they support?

Elements of the skeletal system are adjusted to the function of the body part they support. Thus, the anatomy of bones, joints and ligaments is studied topographically, as the bones of the; head and neck, thorax, abdomen, upper and lower limbs .

What are the two parts of the skeletal system?

The skeletal system is composed of bones and cartilages. There are two parts of the skeleton; axial and appendicular. The axial skeleton consists of the bones of the head and trunk. The appendicular skeleton consists of the bones within the limbs, as well as supporting pectoral and pelvic girdles.

What is the digestive system?

Digestive system - anterior view. The human body is a biological machine made of body systems; groups of organs that work together to produce and sustain life. Sometimes we get lost while studying about cells and molecules and can’t see the forest for the trees.

What is the circulatory system?

They all comprise a continuous network of vessels which act to carry blood around the body. Blood leaves the heart via arteries, these progressively reduce in size to continue as smaller arterial vessels called arterioles. Arterioles end in a web of even smaller vessels called capillaries. The exchange of gases and nutrients occurs through the capillary walls.

What is the cardiovascular system?

The cardiovascular system is comprised of the heart and the circulatory system of blood vessels. The heart is composed of four chambers; two atria and two ventricles. Blood enters the heart through the upper chambers of the left and right atria and exits via the left and right ventricles.

How many circuits are there in the circulatory system?

There are three separate circuits to the circulatory system.

What are the respiratory organs?

The respiratory system consists of a series of organs; the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and lungs ( alveoli ). The nasal cavity and pharynx are together called the upper respiratory system, while the remainder of the organs comprise the lower respiratory system.

What are the parts of the human body?

The human body is everything that makes up, well, you. The basic parts of the human body are the head, neck, torso, arms and legs.

How many muscles are there in the human body?

The body's muscular system consists of about 650 muscles that aid in movement, blood flow and other bodily functions. There are three types of muscle: skeletal muscle which is connected to bone and helps with voluntary movement, smooth muscle which is found inside organs and helps to move substances through organs, ...

What are vestigial organs?

Unlike the vital organs, there are some other organs and structures within the human body that no longer serve a purpose - known as vestigial organs. That's not to say that they didn’t once play a role in human survival, according to the Department of Anatomy at Midwestern University.

What is the role of the lymphatic system?

The lymphatic system includes lymph nodes, lymph ducts and lymph vessels, and also plays a role in the body's defenses. Its main job is to make is to make and move lymph, a clear fluid that contains white blood cells, which help the body fight infection. The lymphatic system also removes excess lymph fluid from bodily tissues, ...

What is the integumentary system?

It protects us from the outside world, and is our first defense against bacteria, viruses and other pathogens. Our skin also helps regulate body temperature and eliminate waste through perspiration. In addition to skin, the integumentary system includes hair and nails.

What are the organs that make up the digestive system?

It includes the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. The liver and pancreas also play a role in the digestive system because they produce digestive juices.

What are the functions of the circulatory system?

The job of the circulatory system is to move blood, nutrients, oxygen, carbon dioxide, and hormones, around the body. It consists of the heart, blood, blood vessels,arteries and veins. The digestive system consists of ...

How many levels of structural organization are there in the human body?

Levels of Structural Organization of the Human Body. The organization of the body often is discussed in terms of six distinct levels of increasing complexity, from the smallest chemical building blocks to a unique human organism.

What are the cells that make up the human body?

A human cell typically consists of flexible membranes that enclose cytoplasm, a water-based cellular fluid together with a variety of tiny functioning units called organelles. In humans, as in all organisms, cells perform all functions of life.

What are the levels of organization in the human body?

Life processes of the human body are maintained at several levels of structural organization. These include the chemical, cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels. Therefore, molecules combine to form cells, cells combine to form tissues, tissues combine to form organs, organs combine to form organ systems, and organ systems combine to form organisms.

What are the building blocks of matter?

To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules. All matter in the universe is composed of one or more unique pure substances called elements, familiar examples of which are hydrogen, oxygen, carbon, nitrogen, calcium, and iron. The smallest unit of any of these pure substances (elements) is an atom. Atoms are made up of subatomic particles such as the proton, electron and neutron. Two or more atoms combine to form a molecule, such as the water molecules, proteins, and sugars found in living things. Molecules are the chemical building blocks of all body structures.

What is the difference between tissue and organ?

A tissue is a group of many similar cells (though sometimes composed of a few related types) that work together to perform a specific function. An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions. An organ system is a group of organs that ...

What are the parts of the reproductive system?

The female ovaries and the male testes are parts of the reproductive system. But they also secrete hormones, as does the endocrine system, therefore ovaries and testes function within both the endocrine and reproductive systems.

What is the term for a group of organs that work together to carry out a particular function?

organ system. group of organs that work together to carry out a particular function. organism. living being that has a cellular structure and that can independently perform all physiologic functions necessary for life.

What is the study of the parts and structures of the body?

Histology: A subdivision of microscopic anatomy that is the study of the parts and structures of the body's tissues. Cell: The basic building blocks of the human body and the bodies of all other living species. Prokaryotes: One of the two types of cells that don't have organelles or a nucleus.

What is deep anatomy?

The term deep is a term to describe that a bodily part or anatomical structure is further away from the surface of the body than another bodily part or anatomical structure. For example, muscle is deeper than the skin.

What is proximal anatomy?

The term proximal is a relative and comparative directional term that is used to describe that a bodily part or anatomical structure is closer to the body mass than another bodily part or anatomical structure. For example, the shoulder is proximal to the elbow.

What is anterior anatomy?

The term anterior is a relative and comparative directional term that is used to describe that a bodily part or anatomical structure is closer to the front of the body than another bodily part or anatomical structure. For example, the sternum, or breast bone, is anterior to the heart.

What is anatomical position?

The anatomical position is the frame of reference for many other terms relating to anatomy, anatomical structures and anatomical directions. The anatomical position consists of a standing upright person facing forward with the person's arms on their sides next to the body and the feet together.

What are the imaginary lines going through the body?

Simply stated, the anatomical planes of the human body are imaginary lines going through the body that give us some point of reference when we are studying anatomy.

What is the study of the human body?

General Anatomy of the Human Body. Simply stated, human anatomy is the study of the parts of the human body. Human anatomy includes both gross anatomy and microscopic anatomy. Gross anatomy includes those human structures that can be seen with the naked eye.

What are the major structural components of the human body?

Lipids —chiefly fats, phospholipids, and steroids —are major structural components of the human body. Fats provide an energy reserve for the body, and fat pads also serve as insulation and shock absorbers. Phospholipids and the steroid compound cholesterol are major components of the membrane that surrounds each cell.

What is the human body?

human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems. Human anatomy and physiology are treated in many different articles. For detailed discussions of specific tissues, organs, and systems, see human blood; cardiovascular system;

What are the biochemical constituents of the body?

For detailed coverage of the body’s biochemical constituents, see protein; carbohydrate; lipid; nucleic acid; vitamin; and hormone. For information on the structure and function of the cells that constitute the body, see cell. Many entries describe the body’s major structures.

How many organ systems are there in the human body?

Encyclopædia Britannica, Inc. See all videos for this article. The body includes nine major organ systems, each composed of various organs and tissues that work together as a functional unit.

What are the components of the cell membrane?

Like lipids, proteins are an important constituent of the cell membrane. In addition, such extracellular materials as hair and nails are composed of protein. So also is collagen, the fibrous, elastic material that makes up much of the body’s skin, bones, tendons, and ligaments.

What are the four main types of tissue?

The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.

How many types of cells are there in the human body?

Although there are some 200 different types of cells in the body, these can be grouped into four basic classes.

What is the most important organ in the body?

The liver is the most important organ of the metabolic system. It helps convert nutrients into usable substances, detoxifies certain substances, and filters blood coming from the digestive tract through a vein before it joins venous blood flow from other parts of the body. Oxygenated blood reaches the liver via an artery.

How many organs do doctors have?

Doctors usually list dozens of organs, though the definition of an organ varies from expert to expert. Most organs play a role in organ systems, which work together to perform specific functions.

What organ stores bile?

The liver pours bile into the gallbladder, which then stores and later releases the bile when the body needs it to help with digestion. A person can live without portions of their liver, but the liver itself is vital for life. Learn more about the liver here.

How many vital organs are there in the human body?

Vital organs. Non-vital organs. Organ systems. Summary. In the human body, there are five vital organs that people need to stay alive. These are also a number of other organs that work together with these vital organs to ensure that the body is functioning well.

What is the most important organ in the circulatory system?

The heart#N#Trusted Source#N#is the most important organ of the circulatory system, which helps deliver blood to the body. It works with the lungs to add oxygen to blood and pump this freshly oxygenated blood through the blood vessels and around the body.

What is vital organ?

The vital organs are those that a person needs to survive. A problem with any of these organs can quickly become life threatening.

How many chambers does the heart have?

It decreases during times of rest. The heart has four chambers. The two upper chambers are called atria, and the two lower chambers are called ventricles. Blood flows into the right atrium from the veins of the heart and body (except the lungs), then it flows into the right ventricle.

Human Anatomy

Skeleton

• The skeleton is a framework of bones, ligaments, and cartilages that gives the body shape. Apart from giving shape, the spinal cord that runs along the human body connects the brain to other parts of the body. Also, it provides a protective casing for vital organs in our bodies. Like the thoracic cage for lungs, the skull for the brain, etc. Every ...

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