What type of tissue surrounds the kidneys?
The kidneys are surrounded by three layers of tissue: The renal fascia is a thin, outer layer of fibrous connective tissue that surrounds each kidney (and the attached adrenal gland) and fastens it to surrounding structures. The adipose capsule is a middle layer of adipose (fat) tissue that cushions the kidneys.
What are the different parts of the kidney?
Your kidneys, which are the main part of the urinary system, are made up of millions of nephrons that act as individual filtering units and are complex structures themselves. The ureters, urethra, and urinary bladder complete this intricate system.
What are the filtering parts of the kidney?
The kidney consists of over a million individual filtering units called nephrons. Each nephron consists of a filtering body, the renal corpuscle, and a urine‐collecting and concentrating tube, the renal tubule. The renal corpuscle is an assemblage of two structures, the glomerular capillaries and the glomerular capsule, shown in Figure 1.
What passes through the hilus of the kidney?
The ureter, nerves, and blood and lymphatic vessels enter the kidney on the concave surface through the renal hilus. The renal sinus houses the renal pelvis, a funnel‐shaped structure that merges with the ureter. Because the major function of the kidneys is to filter the blood, a rich blood supply is delivered by the large renal arteries.
Which tissue type would hold the kidneys in place?
Each kidney is held in place by connective tissue, called renal fascia, and is surrounded by a thick layer of adipose tissue, called perirenal fat, which helps to protect it.
What tissue types add support to an organ?
Connective tissue binds the cells and organs of the body together and performs many functions, especially in the protection, support, and integration of the body.
What type of connective tissue that covers the kidney muscles nerve and bones?
The renal fascia is a thin, outer layer of fibrous connective tissue that surrounds each kidney (and the attached adrenal gland) and fastens it to surrounding structures.
What holds organs and epithelia in place?
In vertebrates, the most common type of connective tissue is loose connective tissue. It holds organs in place and attaches epithelial tissue to other underlying tissues. Loose connective tissue is named so because of the "weave" and type of its constituent fibers.
What is connective tissue function?
Listen to pronunciation. (kuh-NEK-tiv TIH-shoo) Tissue that supports, protects, and gives structure to other tissues and organs in the body. Connective tissue also stores fat, helps move nutrients and other substances between tissues and organs, and helps repair damaged tissue.
What are the functions of epithelial tissue?
Epithelial tissue has a variety of functions depending on where it's located in your body, including protection, secretion and absorption. The organs in your body are composed of four basic types of tissue, including: Epithelial.
What type of muscle is the kidney?
smooth muscle typeContractile proteins of smooth muscle type were found in kidney cells by immunological methods.
What type of connective tissue holds most organs together?
Loose connective tissue works to hold organs in place and is made up of extracellular matrix and collagenous, elastic and reticular fibers. Dense connective tissue is what makes up tendons and ligaments and consist of a higher density of collagen fibers.
What are the 3 connective tissue layers of the kidney?
The kidneys are made up by three external layers, which include the renal fascia (the outermost layer), the perirenal fat capsule, and lastly, the innermost layer, the renal capsule, which then surround the space of the renal cortex.
What is cuboidal tissue?
Simple cuboidal epithelium is a type of epithelium that consists of a single layer of cuboidal (cube-like) cells which have large, spherical and central nuclei.
What is connective tissue support?
Supportive connective tissue—bone and cartilage—provide structure and strength to the body and protect soft tissues. A few distinct cell types and densely packed fibers in a matrix characterize these tissues. In bone, the matrix is rigid and described as calcified because of the deposited calcium salts.
What is the connective tissue of an organ?
Connective tissue is the tough, often fibrous tissue that binds the body's structures together and provides support and elasticity. It is present in almost every organ, forming a large part of skin, tendons, joints, ligaments, blood vessels, and muscles.
What is the outer layer of the kidney?
The kidneys are surrounded by three layers of tissue: The renal fascia is a thin, outer layer of fibrous connective tissue that surrounds each kidney (and the attached adrenal gland) and fastens it to surrounding structures. The adipose capsule is a middle layer of adipose (fat) tissue that cushions the kidneys.
Where are the capillaries located in the renal cortex?
These capillaries weave around the portions of the renal tubule that lie in the renal cortex. In portions of the nephron loop that descend deep into the renal medulla, the capillaries form loops, called vasa recta, that cross between the ascending and descending limbs.
What is the PCT in the renal cortex?
The first section, the proximal convoluted tubule (PCT), exits the glomerular capsule as a winding tube in the renal cortex. The wall of the PCT consists of cuboidal cells containing numerous mitochondria and bearing a brush border of dense microvilli that face the lumen (interior cavity).
What are the two structures of the nephron?
The renal corpuscle is an assemblage of two structures, the glomerular capillaries and the glomerular capsule, shown in Figure 1. The glomerulus is a dense ball of capillaries (glomerular capillaries) ...
How is Na+ transported out of the tubule cells?
Thus, Na + in the tubule cells is transported out of the cells and into the interstitial fluid by active transport. The Na + in the interstitial fluid then enters the capillaries by passive diffusion. (The K + that is transported into the cell leaks back passively into the interstitial fluid.)
How do substances move out of the tubule?
Movement of substances out of the tubule, then, must occur through the cells, either by active transport (requiring ATP) or by passive transport processes. Once outside of the tubule and in the interstitial fluids, substances move into the peritubular capillaries or vasa recta by passive processes.
What are the main parts of the urinary system?
Your kidneys, which are the main part of the urinary system, are made up of millions of nephrons that act as individual filtering units and are complex structures themselves. The ureters, urethra, and urinary bladder complete this intricate system. The urinary system helps maintain homeostasis by regulating water balance ...