Resistance in the cardiovascular system
A. tends to increase if blood viscosity increases.
B. tends to decrease as the diameter of blood vessels decreases.
C. dramatically increases blood flow through the circulatory system.
D. is directly related to flow (? R ? ? Flow).
E. does not occur. If it did, blood would not circulate in the blood vessels.
A
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A young man suffered a severe injury in a motorcycle accident. Rather than give him pain medications by IV or injections, his doctor ordered his pain medicines to be delivered through his skin. Which kind of patches work well this way?
A. Topical B. Sublingual C. Transdermal D. Subcutaneous
In the follicular phase of the ovarian cycle, the ovary is
A) secreting progesterone. B) undergoing atresia. C) releasing a mature egg. D) forming a corpus luteum. E) maturing a follicle.
_________ inhibits secretion of prolactin
A) Insulin B) Growth hormone C) Norepinephrine D) Dopamine from the hypothalamus
Answer the following statements true (T) or false (F)
1. The morula stage precedes the embryonic stage. 2. By the end of the first trimester, the gender of the baby can be identified. 3. The primary germ layers develop during the second trimester of pregnancy. 4. Exposure to a teratogen is most dangerous to the embryo during the morula stage. 5. Teratogens can include x-rays and alcohol.