Chapter 26: The Urinary System Dater POST-LABORATORY WORKSHEET Do You Know the B
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Chapter 26: The Urinary System Dater POST-LABORATORY WORKSHEET Do You Know the Basics? Exercise 26.1 Histology of the Renal Cortex t. Which of the following are components of the nephron? (Check all that apply) O a, collecting duct c. glomerulus d nephron loop e praximal convoluted tubule 2. Fill In the table with the type of epithelilum Iining each structure and a brief description of the function of each structure O Stracture Parietal Layer of Glomeruler Capule 3. The renal corpuscle consists of the glomerular capsule and glomerular capiliaries. 4. Fitration sits in the fitration membrane are formed by which of the following structures? (Cirdle one) O b. endothelum of glomerular capillaries c. podocytes of the glomerular capsule S. Which of the following structures are located in the renal cortex? (Check all thet apply) O a.collecting ducts -c. nephron loop e renal corpuscle Exercise 26.2 Histology of the Renal Medulila 6. Which of the following structures are located in the renal Check all that apply) O collecting ducts b. distal convoluted tubule -c. nephron loop ? -d. proximal convoluted tubule ?-e. renaicorpuscle Chapter Twenty-Two The Urinary System 58Explanation / Answer
1) all are the parts of nephron
2) a) DCT
Epithelium - brushborder cuboidal epithelium
Function- secretion of potassium and absorption of sodium,hence maintains osmolarity and also Blood pressure.
b) Glomerulus
Epithelium - lined by endothelial cells
Function- filteration of plasma
c) parietal layer of Glomerular capsule
Epithelium- simple squamous
Function- filteration process
d) PCT
Epithelium- simple cuboidal epithelium
Function- absorption of sodium and water and transepithelial transport.
e) visceral layer of Glomerular capsule-
Epithelium- simple lined by podocytes that is gaping between sqaumous epithelial cells
Function- filteration process
3) true
4) c) podocytes of the glomerular capsule
5) DCT,Renal corpuscle and PCT.
6) collecting ducts and nephron loop
7) thick limbs by simple cuboidal
Thin limbs by simple squamous epithelium
8) innermost- mucosa
Middle- muscularis
Outermost- adventitia or fibrous coat
9) inner circular
Outer longitudinal
10) four layers
11) transistional epithelium
12) false
13) left kidney
14) renal capsule > pernephric fat> renal fascia > paranephric fat
15) true
16) renal artery supplies oxygen rich blood to the kidneys whereas renal vein drains blood from each kidney to inferior venacava
17) renal artery > segmental artery > interlobar artery > arcuate artery > interlobular artery > afferent arteriole.
18) true
It is known as filterate.
Urine is the concentrated form of filterate which is filtered last at collecting ducts.
19) minor calyx> major calyx> renal papilla> renal pelvis
20) ureter> urinary bladder > urethra
21) pelvic cavity
22) left ureter,right ureter and urethra
23)prostatic > membranous> spongy
24) internal sphincter lined by smooth muscle
External sphichter lined by skeletal muscle
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