Endocrine/Reproduction

1. Production of the gonadal sex hormones is
A. relatively constant from fetal life to old age
B. low until puberty, after which it becomes quite high and remains so until old age
C. low until puberty, and remains so until old age
D. high during fetal life, low during childhood, high during puberty, and then declines later in life

2. Posterior pituitary hormones
A. are produced in the hypothalamus
B. travel to the posterior pituitary along the hypothalamo-pituitary portal system
C. are called hypophysiotropic hormones
D. all of the above

3. Ovulation is induced by a surge of
A. LH
B. progesterone
C. inhibin
D. FSH

4. Steroid hormones
A. are manufactured from cholesterol
B. easily pass across the plasma membrane because of their high lipid solubility
C. are in ways similar in basic structure
D. all of the above

5. Secondary hyposecretion is when
A. a gland is abnormal and therefore produces too little of a hormone
B. a gland is abnormal and therefore produces too much of a hormone
C. a gland is normal but is stimulated to produce too much of a hormone by another tropic hormone
D. a gland is normal but is insufficiently stimulated by a tropic hormone to produce enough of the primary hormone

6. After ovulation, the endometrium enters the
A. follicular phase
B. proliferative phase
C. secretory phase
D. luteal phase

7. The hormone detected by plasma or urine pregnancy tests is
A. placental lactogen
B. progesterone
C. luteinizing hormone
D. chorionic gonadotropin

8. The gonadotropins in males are the
A. gonadotropin releasing hormones
B. follicle-stimulating hormone and luteinizing hormone
C. estrogens
D. inhibins

9. The adrenal glands
A. are really two distinct glands, each with different functions
B. include the adrenal medulla, which secretes steroid hormones
C. include the adrenal cortex, which secretes epinephrine and norepinephrine
D. all of the above

10. A female has 1-2 million primary oocytes at birth. During the first week of each menstrual cycle
A. about 100 of the prenatal follicles begin to develop into antral follicles
B. one follicle becomes the dominant follicle
C. a zona pellucida forms around the ovary
D. about 10 to 25 of the preantral follicles form granulosa cells