FREE ANATOMY AND STUDY GAMES ABOUT BIO202 RIO

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FREE ANATOMY AND STUDY GAMES ABOUT BIO202 RIO

MARIEB EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -48 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: its inner (visceral) membrane forms part of the filtration membrane =

Answer:

glomerular capsule Question 2: The kidney consumes about 15% of all oxygen used by the body at rest.

Answer:

False Question 3: The proximal convoluted tubule is the portion of the nephron that attaches to the collecting duct.

Answer:

False

Question 4: site of filtration formation =

Answer:

glomerulus

Question 5: Explain why the glomerulus is such a high-pressure capillary bed. Also, explain how does its high-pressure condition aid its functions of filtrate formation?

Answer:

It is both fed and drained by arterioles (which are high pressure vessels compared to venules), and the afferent arteriole has a larger diameter than the efferent arteriole.Question 6: Which of the following regions of the nephron may be found in the renal medulla?

Answer:

Loop of Henle Question 7: Why is incontinence a normal phenomenon in the child under 1 1/2 to 2 years old?What events may lead to its occurrence in the adult?

Answer:

Mus. control over the vol sphincter has not yet been achieved in very young children. In adults, incontinence may be caused by emo. prob., bladder irritability, increased pressure on the bladder, nerve or spinal cord injury, and other reasons.Question 8: Blood vessels entering the kidneys and attempting to reach the cortex travel through these extensions of the cortex called

Answer:

Renal Columns Question 9: Trace the anatomical pathway of a molecule of creatinine (metabolic waste) from the glomerular capsule to the urethra. Note each microscopic and/or gross structure it passes through in its travels. Name the subdivisions of the renal tubule.

Answer:

Glomerular capsule proximal convoluted tubule loop of Henle distal convoluted tubule collecting tubule papillary duct minor calyx major calyx renal pelvis ureter bladder urethra

Question 10: Voiding or emptying the bladder is called

Answer:

micturition.Question 11: a cup-shaped extension of the pelvis that encircles the apex of a pyramid =

Answer:

minor calyx

Question 12: Indicate which term(s) does not belong in the follwing grouping: Peritubular, Capillaries, Reabsorption, Glomerulus, and low-pressure vesses

Answer:

Glomerulus

Question 13: Blood in the urine may be a symptom of bladder cancer

Answer:

True Question 14: The basic functions of the nephrons are:

• osmosis,
• filtration,
• diffusion,
• secretion,
• reabsorption

Answer:

2, 4, and 5 are correct

Question 15: The terminal portion of the urinary system is the urethra.

Answer:

True

Question 16: Particles smaller than 3 nanometers are passed into the filtrate.

Answer:

True Question 17: Explain the mechanism of tubular secretion and explain its importance in the urine formation process.

Answer:

Tubular secretion is the process of moving substances from the tubule cells or from the peritubular capillary blood into the tubule filtrate. It is important for adjusting pH and eliminating substances not already in the filtrate.

Question 18: The functional unit of the kidney is the renal column.

Answer:

False

Question 19: Define ptosis:

Answer:

Dropping of the kidney(s) to a more inferior position in the abdominal cavity.Question 20: The trigone is so named because of the shape of the urinary bladder.

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False Question 21: People on a strict diet to lose weight begin to metabolize stored fats at an accelerated rate. How does this condition affect blood pH?

Answer:

It would become acidic (decreased pH).Question 22: The kidney is referred to as an excretory organ because it excretesIt is also a major homeostatic organ because it maintains

Answer:

nitrogenous wastes.the electrolyte, water or fluid, and acid-base or pH balance of the blood.

Question 23: area of cortical tissue running between the medullary pyramids =

Answer:

renal column Question 24: During the micturition reflex, there is increased activity of the sympathetic neurons that control the smooth muscle of the bladder.

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False Question 25: -portion of the kidney containing the bulk of the nephron structures =

Answer:

Cortex Question 26: Two components of the nephron are:

Answer:

renal corpuscle and renal tubules