Which of the following could NOT be antigenic by themselves?
A) protein
B) polysaccharides
C) haptens
D) glycolipids
Answer: C) haptens
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Together the lentiform and caudate nuclei are known as the
a) globus pallidus. b) putamen. c) medial geniculate nucleus. d) corpus striatum. e) internal capsule.
In most mammals, the effect of increased 2,3-DPG in the blood
A) Increases the oxygen affinity of hemoglobin. B) Decreases the oxygen affinity of hemoglobin. C) Increases iron content of hemoglobin. D) Causes anemia.
The posterior pituitary hormone that is crucial for milk ejection is
A. LH. B. GnRH. C. oxytocin. D. prolactin. E. progesterone.
Select the statements about blood pressure regulation that are true?
A. Parasympathetic activity at synapses with arteriolar smooth muscle is a primary means of regulating MAP B. During the gain in adipose (fat) tissue associated with obesity, the overall length of blood vessels in the systemic circuit increases; this would tend to decrease MAP C. Decreased vagal nerve activity at the SA node will tend to increase cardiac output and MAP D. Decreases in CO2 and increases in O2 around arterioles in active muscle will produce vasodilation E. Increases in CO2 and decreases in O2 around arterioles in active muscle will produce vasodilation F. Long-term regulation of MAP is primarily due to changes in blood volume G. Increased activity of the skeletal and respiratory pumps during exercise tends to increase stroke volume H. Most baroreceptors are located in the limbs in order to closely regulate blood pressure to the periphery I. Sympathetic neurons innervate the smooth muscle layer of many arterioles J. In response to a sudden decrease in MAP, parasympathetic activity will be decreased and sympathetic activity increased K. The sympathetic NS is an important regulator of minute-to-minute changes in blood flow to organs and MAP