Connective tissue matrix is composed of ________
A) cells and protein fibers
B) ground substance and cells
C) ground substance and protein fibers
D) none of the above
C
Explanation:
A) The cells of connective tissue secrete protein fibers, which strengthen the tissue.
B) The cells of connective tissue produce a ground substance that surrounds the cells in a thick liquid.
D) One of the above answers is correct.
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Cardiac muscle, smooth muscle, and glands are under the control of the
A) somatic nervous system. B) parasympathetic division. C) autonomic nervous system. D) central nervous system. E) sympathetic division.
The barrier between the ECF and the ICF is the __________
Fill in the blank(s) with correct word
If baroreceptors are primed to detect blood pressure changes and compensate for them, how is it that some patients suffer from chronic hypertension?
A. These baroreceptors have failed in these patients. B. The baroreceptors in these patients have a new higher set point. C. These baroreceptors are chemically inducing changes that one might experience under low blood pressure conditions. D. The blood viscosity has increased in hypertensive patients.
The ability of CO2 to alter the affinity of hemoglobin for O2, which enhances O2 delivery to tissues and O2 uptake in the lungs, is referred to as:
A. chloride shift B. Haldane effect C. Bohr effect D. Hamburger phenomenon E. Graham's effect