What is a group of organs working together that perform major functions?
An organ system is a group of organs that work together to carry out a complex overall function. Each organ of the system does part of the larger job.
What do you call the organ that works together?
An organ system is a group of organs that work together to perform various functions. Circulatory system (constituted by heart, blood vessels etc) and digestive system (constituted by organs like oesophagus, stomach etc) are examples of organ systems. So, the correct option is the "Organ system".
How do organs work together?
The nervous system controls virtually all body activities, and the endocrine system secretes hormones that help to regulate these activities. Functioning together, the organ systems supply body cells with all the substances they need and eliminate their wastes. They also keep temperature, pH, and other conditions at just the right levels to support life.
Which organs work together to rid the body of liquid waste?
In the organ example above, both the kidneys and the bladder are organs of the urinary system. The kidneys produce urine, which is moved to the bladder by the ureters. Urine can then leave the bladder, and the body, through the urethra. These four organs work together to rid the body of liquid waste.
Which tissue is composed of cells that are tightly packed together in sheets?
Epithelial tissue is mostly composed of cells that are tightly packed together in sheets. Muscle tissue is also composed of rightly backed cells and some types of muscle such as the skeletal muscle shown in Figure 4.2. 4 contains striation due to the organization of muscle fibers.
What is the structure of a smooth muscle cell?
A human cell, such as a smooth muscle cell, typically consists of flexible membranes that enclose cytoplasm , a water-based cellular fluid together with a variety of tiny functioning units called organelles. Figure 4.2. 2: This diagram shows the levels of organization of the human body, from atoms to the whole organism.
What is the chemical building block of all body structures?
Molecules are the chemical building blocks of all body structures. The cellular level is considered when a variety of molecules combine to form the fluid and organelles of a body cell. A cell is the smallest independently functioning unit of a living organism.
How many cells are there in the human body?
In addition, most human cells are specialized in structure and function to carry out other specific roles. In fact, the human body may consist of as many as 200 different types of cells, each of which has a special job to do. Just a few of these different human cell types are pictured in Figure 4.2. 3. The cells in the figure have obvious differences in structure that reflect their different functions. For example, nerve cells have long projections sticking out from the body of the cell. These projections help them carry electrical messages to other cells.
What is the study of the human body called?
The biology of the human body incorporates the body’s structure, the study of which is called anatomy, and the body’s functioning, the study of which is called physiology. The organization of the human body can be seen as a hierarchy of increasing size and complexity, starting at the level of atoms and molecules and ending at the level ...
