-
Shanice Nicole Caballes posted an update in the group
Histology Art – E (2022) 3 years, 11 months ago URINARY SYSTEM
Kidney. Having a length of 12 cm, a width of 6 cm, and a thickness of 2.5 cm in adults, each kidney has a concave medial border, the hilum—where nerves enter, the ureter exits, and blood and lymph vessels enter and exit—and a convex lateral surface, both covered by a thin fibrous capsule. Each kidney has 1-4 million functional units known as nephrons. The following are the five major divisions of each nephron: renal corpuscle, Loop of Henle, proximal tubule, connecting tubule, and distal tubule.Ureter. Ureters transport urine from the renal pelvis to the urinary bladder where it is stored until emptying by micturition via the urethra. Ureter walls have mucosal, muscular, and adventitial layers, and they become gradually thicker the closer they are to the bladder. The mucosa of the ureter is lined by transitional epithelium (urothelium).
Loop of Henle. Also termed the nephron loop, the Loop of Henle contains a thin descending and thin ascending limb. It is a U-shaped structure whose limbs are composed of simple squamous epithelia. The Loop of Henle and surrounding interstitial connective tissue aid in further adjusting the salt content of kidney filtrates.
REFERENCES:
Mescher, A. (2018). Junqueira’s basic histology: text and atlas (15th ed.). Mcgraw Hill Education.
Recently Active Members
