The actin filaments in sarcomere contain cross bridges
Indicate whether the statement is true or false
F
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The longest, heaviest bone in the body is the ________.
Fill in the blank(s) with the appropriate word(s).
The myogenic mechanism for GFR auto regulation involves
a. the response to changes in the nephron's tubular component. b. the response to changes in pressure within the nephron's vascular component. c. the release of vasoactive paracrines from the juxtaglomerular apparatus. d. the detection of flow changes by the cells of the macula densa.
If there is a physiologic level of antidiuretic hormone in the bloodstream, then:
A) blood pressure decreases secondary to dilation of the vessels. B) the renal tubules are stimulated to reabsorb sodium and water. C) potassium, phosphorus, and magnesium are lost through diuresis. D) the kidneys excrete excessive sodium and water from the body.
The folds in the mucosa and submucosa of the stomach which allow it to expand as it fills with food are the ________.
A. villi B. rugae C. microvilli D. All of these choices are correct.