Summarize the relationship between the radius of a blood vessel and blood pressure
What will be an ideal response?
As the radius of a blood vessel increases, the resistance to blood flow decreases, and vice versa. Peripheral resistance is directly proportional to blood pressure. Thus, as resistance to blood flow decreases, blood pressure also decreases. Likewise, as resistance to blood flow increases, blood pressure also increases.
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Which of the following is NOT governed by the Food and Drug Administration (FDA)?
a. monitoring animals used for human consumption b. manufacturing standards of food additives c. monitoring medications used in animals d. issuing licenses to veterinarians to use controlled substances
Because of the active transport of Na+ and K+, the intracellular concentration of Na+ is lower than the extracellular concentration, whereas the reverse is true for K+
Indicate whether the statement is true or false.
A diminished reflex response that may indicate damage to a segment of the spinal cord is a(n) _____ reflex
A. hypoactive B. hyperactive C. diminutive D. ponderous E. excessive
The “lock and key” model is use to describe the functioning of:
a. enzymes b. collagen molecules c. keratin molecules d. both A and B above