What role does prolactin play in reproductive behavior?
What will be an ideal response?
Answer: During pregnancy in mammals, prolactin and the steroid hormones alter the brain biochemistry of the female to promote maternal behavior. The behavior is related to increased prolactin synthesis and to the expression of prolactin receptors in the medial peroptic area of the hypothalamus: The hypothalamus exhibits greater sensitivity to prolactin. In mammals in which paternal care has been observed, males also have higher levels of prolactin.
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Which of these pathways involves brain structures?A) The corticospinal pathwayB) The extrapyramidal systemC) The Golgi tendon organsD) The knee-jerk reflexE) All of these
What will be an ideal response?
The group of pacemaker cells near the entrance of the superior vena cava forms the ________
A) Bundle of His B) Atrioventricular node C) Sinoatrial node D) Myocardium
A __________ RNA binds an amino acid
Fill in the blank(s) with correct word
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a. glutamate b. vitamin E c. vitamin B6 d. vitamin A e. zinc