Question

1. the pharynx functions as a passageway for, whereas the larynx functions as a passageway for a) food only; air only b) air and food; air only c) air only; air and food d) air and food; food only 38) the left lung is larger than the right lung and is divided into three lobes. true false 39) which of the following is not a function of the kidneys? a) removal of excess chemicals b) maintaining volume, ph, and composition of body fluids within normal ranges c) synthesis of plasma proteins d) removal of metabolic wastes 40) a nephron consists of what structures? a) an afferent and efferent arteriole b) a renal corpuscle and a renal tubule c) a bladder and a ureter d) a cortex and a medulla 41) a fetus develops without macula densa in its nephrons. which of the following will occur as a result? a) loss of the ability to convert angiotensin i into angiotensin ii b) loss of renin secretion in response low blood pressure conditions c) loss of the ability of fluid to pass from the glomerular capillaries into the bowmans capsule d) loss of the ability to detect sodium, potassium, and chloride ions in the nephron loop and to secrete renin in response 42) where are the vocal cords located? a) in the pharynx b) in the oral cavity c) in the trachea d) in the larynx 43) glomerular filtration produces about liters of fluid in twenty - four hours. a) 40 b) 144 c) 180 d) 96

Explanation:

• Question 37: The pharynx is a common passageway for both air and food. The larynx is only a passageway for air.
• Question 38: The right lung is larger and has three lobes, while the left lung has two lobes.
• Question 39: Plasma proteins are synthesized by the liver, not the kidneys.
• Question 40: A nephron consists of a renal corpuscle (glomerulus and Bowman's capsule) and a renal tubule.
• Question 41: The macula densa detects sodium, potassium, and chloride ions in the nephron loop and signals the juxtaglomerular cells to secrete renin.
• Question 42: The vocal cords are located in the larynx.
• Question 43: Glomerular filtration produces about 180 liters of fluid in twenty - four hours.

Answer:

1. B. air and food; air only
2. false
3. C. Synthesis of plasma proteins
4. B. A renal corpuscle and a renal tubule
5. D. Loss of the ability to detect sodium, potassium, and chloride ions in the nephron loop and to secrete renin in response
6. D. In the larynx
7. C. 180