Describe how infant suckling leads to milk secretion from the mammary glands
The letdown reflex stimulates milk release from the breast. The stimuli from the infant suckling are passed through nerves to the hypothalamus, which responds by promoting oxytocin release from the posterior pituitary gland. The oxytocin causes contraction of the myoepithelial cells surrounding the secretory cells. As a result, milk is released through the ducts, making it available to the infant.
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On average, adolescents consume too little of all of the following foods except:
A) fruits. B) vegetables. C) whole grains. D) meat.
What does the term angiogenesis refer to?
A. increase in blood flow B. development of new blood vessels C. destruction of arteries D. synthesis of red blood cells E. change in blood pressure
The developing infant from 8 weeks after conception until its birth is called a(n) _____
a. fetus b. embryo c. ovum d. blastocyst e. lanugo
Mr. M has been diagnosed with chronic kidney disease Stage 5 and is going to be requiring dialysis. His initial laboratory work came back and he has low Na, Cl, and Ca levels as well as high K and P levels. The physician has put him on a fluid restriction, a potassium restriction, and a phosphorus restriction. One of the reasons for the physician's order for a potassium restriction could be:
a. potassium interacts with kidney disease medications. b. high potassium levels stimulate the secretion of aldosterone by the adrenal glands. c. high potassium levels cause the retention of vasopressin. d. potassium directly interacts with calcium.