Answer the following statements true (T) or false (F)
1. After ovulation, the egg discharged by the ovary first enters the fimbriae of he oviduct.
2. The placenta is composed of tissue from both the mother and child.
3. Because all structures develop from them, the morula and blastocyst are called the primary germ layers.
1. FALSE
2. TRUE
3. FALSE
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The first event in inspiration is
A. lung inflation. B. atmospheric pressure forces air into the respiratory tract. C. the diaphragm moves downward and the external intercostal muscles contract. D. decreased intra-alveolar pressure.
The hepatorenal recess (Morison pouch):
A) is part of the omental bursa. B) is in the subphrenic recess. C) receives infected fluids draining from the omental bursa in the supine position. D) is a potential space in the hepatorenal ligament. E) is extraperitoneal.
When there is a decrease in blood calcium levels, osteoclast activity
a. Stays the same b. Decreases c. Increases
Which of the following is not true of the effects of various factors on blood pressure?
A. An increase in vasoconstriction of blood vessels increases blood pressure. B. An increase in blood volume increases blood pressure. C. An increase in cardiac output increases blood pressure. D. An increase in peripheral resistance decreases blood pressure. E. All of these are true of the effects of various factors on the blood pressure.