What function does placental PTHrp (parathyroid hormone–related peptide) serve?
a. It helps prepare the mammary glands for lactation
b. It increases maternal plasma Ca2+ levels for use in calcifying fetal bones.
c. It softens the cervix in preparation for cervical dilation at parturition.
d. It maintains the corpus luteum of pregnancy.
e. It stimulates growth of the myometrium.
b
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The myogenic mechanism reflects the tendency of vascular smooth muscle to stretch
Indicate whether the statement is true or false
The visceral and parietal pleural membranes are normally held together by
A) a thin film of serous fluid. B) surfactant. C) dense connective tissue. D) loose connective tissue.
Answer the following statements true (T) or false (F)
1. Female orgasm is required for conception. 2. The primary function of the testes is to produce testosterone. 3. The stage in meiosis where chromosomal exchange takes place is telophase. 4. The diamond-shaped area between the coccyx, pubic arch, and ischial tuberosities in the female is the vulva. 5. The soft mucosal lining of the uterus is the endometrium.
Rhodopsin is found in the
A. rods. B. cones. C. choroid. D. pigmented retina. E. amacrine cells.