Which of the following is a normal response to the plantar reflex test in an infant?
A) plantar flexion of the foot
B) slight flexion of the forearm
C) extension of the great toe and spreading of the other toes
D) slight extension of the forearm
C
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What are the five ways that cells regulate flow of molecules through their metabolic pathways?
What will be an ideal response?
Typically, ETCO2 is approximately:
A) 2 to 5 mm Hg higher than the arterial PaCO2. B) 2 to 5 mm Hg lower than the arterial PaCO2. C) 5 to 10 mm Hg higher than the arterial PaCO2. D) 5 to 10 mm Hg lower than the arterial PaCO2.
Which of the following correctly describes an erection?
A) The spongy tissue in the penis fills with air. B) Parasympathetic neurons release nitric oxide causing dilation of small arteries in the penis. C) Smooth muscles of vascular spaces in the penis contract. D) Parasympathetic impulses constrict arteries leading to the penis.
Answer the following questions true (T) or false (F)
1. When antidiuretic hormone (ADH) levels rise, less water is reabsorbed via the kidneys, the ECF volume decreases, and urine production increases. 2. Aldosterone triggers the secretion of potassium ions (and hydrogen ions) and the reabsorption of sodium ions by the kidney. 3. Calcium ions have important functions in the body such as forming an integral part of the ATP molecule.