BMS 251 Lecture Notes - Lecture 10: Urethral Sphincters, Renal Cortex, Calcitriol

51 views29 pages

amethystbear941

26 Nov 2018

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

External urethral sphincter muscle fibrous capsule of kidney. Describe the structure of the nephron including the function of each component: afferent and efferent arteriole, glomerulus, bowman"s capsule, pct, nephron loop, dct collecting duct, glomerulus: a thick tangle of capillary loops(fenestrated capillaries). Blood enters through an afferent arteriole and exits by an efferent arteriole. Blood is filtered and h2o, hormones, and ions are filtered out: bowman"s capsule: surrounds the glomerulus, and creates a capsular space to catch filtrate, proximal convoluted tubule (pct): simple cuboidal epithelium. Antidiuretic hormone: intercalated cells: help regulate blood and urine ph. i. ii. Secretion from peritubular capillaries: collecting duct: projects through pyramid and empties into renal papilla, made of simple cuboidal epithelium, principal and intercalated cells for absorption and some secretion. Describe the process of filtration that is occurring within the glomerulus (3 structures that filter and the driving force)

Related Questions

What fluid fills each of the following?

The capsular space

Distal convoluted tubule

Glomerulus

Afferent arteriole

Efferent arteriole

Ureter

Minor calyx

Bladder

Starting with the glomerulus the regions of the urinary system that the filtrate must flow through are: (Please Note: not all structures need to be present, only that the sequence is correct)

a. glomerular capillaries â proximal convoluted tubule â ascending limb of the loop of Henle â minor calyx â urethra

b. Bowmanâs space â proximal convoluted tubule â descending limb of t he loop of Henle, collecting duct - ureter

c. proximal convoluted tubule â major calyx â bladder - urethra

d. âaâ and âbâ are correct

e. All are correct

Explanation as well would be helpful

harlequinserval672

1) A drop of urine would follow this path

a) renal pyramid/major calyx/minor calyx/renal pelvis/ureter

b) minor calyx/major calyx/renal pyramid/renal pelvis/ureter

c) renal pelvis/minor calyx/major calyx/renal pyramid/ureter

d) renal pyramid/minor calyx/major calyx/renal pelvis/ureter

2) The production of filtrate starts at

a) Loop of Henle

b) capsular space

c) distal convoluted tubule

d) proximal convoluted tubule

3) Major reabsorption of water happens by ____at the _____

a) contransport, distal convoluted tubules

b) Cl- shift, nephron loop

c) countercurrent, nephron loop

d) countercurrent, ureter

4) Angiotensin II causes production of ____to increase Na + reabsorption in the _________

a) renin; collecting duct

b) aldosterone; PCT

c) ADH; nephron loop

d) aldosterone; collecting duct

5) Most of the reabsorbed compounds from the filtrate end up in the

a) peritubular capillary

b) urine

c) nephron loop

d) DCT

6) Reabsorption of urea happens by

a) transcellular movement

b) by paracellular movement

c) by cotransport with glucose

d) by HCO3- movement

7) Transport Maximum, in urinary system terms, refers to

a) proteins performing âtransportâ out of the filtrate at maximum rate

b) the reason why a diabetic produces large volumes of diluted urine

c) excess filtrate components being urinated out of the body

d) All choices are correct

8) Urine does not drop below pH 4.5 because

a) proteins that move H+ into filtrate stop working when too much H+ builds up in filtrate

b) proteins in urine neutralize acid

c) H+ are always buffered

d) the buffering system in urine does not run out

9) Hyperkalemia will

a) activate adrenal cells to secrete aldosterone

b) can stop the heart

c) No choices are correct

d) cause reduced excitability of neurons

e) All choices are correct

amaranthgnu452

BMS 251 Lecture Notes - Lecture 10: Urethral Sphincters, Renal Cortex, Calcitriol

Document Summary

Get access

Related Documents

BMS 251 Lecture Notes - Lecture 9: Bone Marrow, Calcitriol, Metabolic Waste

BIOL 205 Lecture Notes - Lecture 29: Urethral Sphincters, Interlobular Arteries, Renal Papilla

BIOM 2000 Lecture Notes - Lecture 7: Distal Convoluted Tubule, Proximal Tubule, Internal Urethral Orifice

Related Questions