Lab 15 Flashcards
Kidneys function
function to eliminate nitrogenous wastes produced during cellular metabolism
Layers of tissue surrounding the kidney
renal capsule
middle adipose capsule
renal fascia
Nephron structure
renal corpuscle
renal tubule
Renal corpuscle composition
Bowman’s Capsule
Glomerulus
Path of urine through the Nephron
- Glomerulus
- Bowmans Capsule
- Descending limb
- Loop of Henle
- Vatsa Recta
- Ascending limb
- Distal convoluted tubule
- Collecting duct
Processes of urine formation
Glomerular Filtration
Tubular Reabsorption
Tubular Secretion
Glomerular Filtration
process which separates the materials on the basis of their size in relation to the pores of the filtration membrane
Tubular reabsorption
occurs as the filtrate flows through the renal tubules, and begins as soon as the filtrate enters the proximal convoluted tubule.
Tubular secretion
process by which substances enter the filtrate from the blood in the peritubular capillaries. Allows waste and other materials to leave the body in urine.
How does ADH control urine formation?
when blood is diluted, ADH production decreases and a large amount of dilute urine is produced.
How does aldosterone control urine formation?
helps maintain the sodium and potassium concentration. It stimulates reabsorption of sodium ions and water.
Normal urine
4.8-7.5 pH strip
No glucose or blood
No protein or nitrates
Specific gravity
the ratio of the mass of a substance to the mass of an equal volume of distilled water
Hormones produced by the Pituitary Gland (6)
Thyroid stimulating hormone
Adrenocorticotropic hormone
Follicle-stimulating hormone
luteinizing hormone
Growth hormone
Prolactin
Hormones produced by the Thyroid Gland (2)
Thyroxine- affects metabolism for all the tissues in the body
Triiodothyroxine
