Atrial natriuretic hormone increases ________.
A. ADH secretion.
B. aldosterone secretion.
C. urine volume.
D. blood volume.
E. the reabsorption of Na+.
Answer: C
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During in utero (fetal) development of the ovary, which of these occurs?
A. Cell division of primary oogonia results in the production of 2 to 4 million primary oocytes, which are present at birth. B. A single primary oogonium remains dormant, which then undergoes rapid mitosis after birth. C. Cell division of primary oogonia, which all complete both meiotic divisions before birth. D. The mitotic division of primary and secondary oocytes produces cells with 23 chromosomes each. E. Cell division of primary oogonia, which all complete the first meiotic division before birth.
How are burns classified? Give an example.
What will be an ideal response?
Match each term with its definition or description.
a. testes b. seminiferous tubules c. interstitial cells d. epididymis e. ductus deferens f. urethra g. seminal vesicles h. prostate gland i. corpora cavernosa j. corpus spongiosum 1. _____ A tightly coiled tube that lies on the top of and behind the testes 2. _____ Produces 60% of the seminal fluid and supplies the sperm with fructose 3. _____ Essential organ of the male reproductive system 4. _____ Carries sperm and allows them to pass out of the scrotum and into the abdominal cavity 5. _____ The penis contains one of this type of erectile tissue 6. _____ Structures responsible for the secretion of testosterone 7. _____ Produces a thin, milk-colored fluid that composes 30% of the seminal fluid 8. _____ Tube in which sperm cells develop 9. _____ The penis contains two of this type of erectile tissue 10. _____ Tube that leads sperm to the outside; also part of the urinary system
Which of the following complements the flexion (withdrawal) reflex?
A) crossed-extension reflex B) stretch reflex C) gag reflex D) Golgi tendon reflex