Aldosterone
a. enhances the ability of the kidneys to eliminate excess K+
b. directly promotes H2O conservation by the kidneys
c. secretion is inhibited by angiotensin II
d. is not a steroid
e. is produced in the adrenal medulla
A
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Which statement is incorrect?
a. The Y chromosome stimulates production of SRY protein by primitive gonadal cells. b. Ovaries must be present for feminization of the reproductive tract and external genitalia to occur. c. H-Y antigen directs differentiation of the primitive gonads into testes. d. Secretion of testosterone and Müllerian inhibiting factor by the fetal testes induces development of the reproductive tract and external genitalia along male lines. e. Early in development, embryos of both sexes have the same indifferent reproductive tissues capable of differentiating into either a male or female reproductive system depending respectively on the presence or absence of masculinizing factors.
If the epidermis, dermis, and part of hypodermis are burned, it is classified as
A) first degree. B) second degree. C) partial thickness. D) full thickness. E) none of the choices.
The upper respiratory tract extends from the nose through the ________
A) lungs B) trachea C) larynx D) alveoli E) pharynx
Lacteals
A. are found only in the large intestine. B. absorb the products of fat digestion. C. secrete intestinal juice. D. connect directly to the liver. E. All of the choices are correct.