The hypothalamus makes two hormones, ________ and ________, that are stored by the posterior pituitary
A) oxytocin; antidiuretic hormone (ADH)
B) cortisol; aldosterone
C) growth hormone; prolactin
D) antidiuretic hormone (ADH); prolactin
A
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The amount of Na+ reabsorbed is regulated primarily by the ____________________ system
Fill in the blank(s) with correct word
Which of the following is NOT true of the crossed extensor reflex?
A. When flexor muscles of the lower limb contract due to stepping on a sharp object, the extensor muscles in the same limb are inhibited. B. It occurs in conjunction with a withdrawal reflex. C. It occurs in reflexes in both the upper and lower limb. D. When flexor muscles of the lower limb contract due to stepping on a sharp object, the extensor muscles in the opposite limb are stimulated. E. The crossed extensor reflex helps a person remain upright during the withdrawal reflex.
A 25-year-old woman sees her doctor because of hirsutism (inappropriate hair growth) and excessive acne
At examination, her blood pressure is 150/90 mm Hg (elevated). Blood work reveals normal Na+ but low/normal K+ levels. Testosterone and dihydrotestosterone (DHT) levels are in the high end of the normal range, and DHEAS and ACTH are moderately elevated. Her physician suspects late-onset congenital adrenal hyperplasia due to subnormal activity of an adrenal enzyme. The subnormal activity of which enzyme explains both the elevated adrenal androgens (e.g., DHEAS) AND hypertension (elevated blood pressure)? A. CYP11B1 B. CYP17 C. CYP21A2 D. CYP11B2 E. CYP11A1
In the spinal cord, white matter surrounds (is external to) the gray matter.
Answer the following statement true (T) or false (F)