Human Physiology - Excretory Products & Elimination Questions and Answers

Which of the following structures/cells are components of the Juxtaglomerular Apparatus (JGA)?
1. PCT(proximal convoluted tubule) 2. DCT (distal convoluted tubule)3. Afferent arteriole 
 4.granular cell  5. macula densa cells   6. intercalated cells

A. 3,4,5 and 6
B. 1,3,4 and 6
C. 2,3,4 and 5
D. 1, 2 and 3
Biology
Human Physiology - Excretory Products & Elimination
Which of the following structures/cells are components of the Juxtaglomerular Apparatus (JGA)? 1. PCT(proximal convoluted tubule) 2. DCT (distal convoluted tubule)3. Afferent arteriole 4.granular cell 5. macula densa cells 6. intercalated cells A. 3,4,5 and 6 B. 1,3,4 and 6 C. 2,3,4 and 5 D. 1, 2 and 3
What is the purpose of measuring the glomerular filtration rate?
Why do the ureters use smooth muscle contraction to actively move urine to the urinary bladder?
Why don't they rely on gravity to move the urine to the inferiorly located bladder?

What are some substances eliminated as waste products?
What three factors establish and maintain the concentration gradient of the
Interstitial fluid of the kidney?
Describe the composition of urine and its characteristics.
Describe the structure and function of the ureters.
Explain the structure of the urinary bladder.
How does the urethra of a male and female differ?
What steps lead to micturition? At what point does the reflex overcome conscious
control?
Biology
Human Physiology - Excretory Products & Elimination
What is the purpose of measuring the glomerular filtration rate? Why do the ureters use smooth muscle contraction to actively move urine to the urinary bladder? Why don't they rely on gravity to move the urine to the inferiorly located bladder? What are some substances eliminated as waste products? What three factors establish and maintain the concentration gradient of the Interstitial fluid of the kidney? Describe the composition of urine and its characteristics. Describe the structure and function of the ureters. Explain the structure of the urinary bladder. How does the urethra of a male and female differ? What steps lead to micturition? At what point does the reflex overcome conscious control?
Where do nitrogenous wastes enter the kidney? Where do they leave?.
Biology
Human Physiology - Excretory Products & Elimination
Where do nitrogenous wastes enter the kidney? Where do they leave?.
Peristaltic waves are
O segmental regions of the GI tract.
O churning movements of the stomach.
O absorptive regions on the small intestine.
O waves of muscular contractions that propel contents from one point to another.
Biology
Human Physiology - Excretory Products & Elimination
Peristaltic waves are O segmental regions of the GI tract. O churning movements of the stomach. O absorptive regions on the small intestine. O waves of muscular contractions that propel contents from one point to another.