Which statement accurately describes total blood flow?
A. Total blood flow equals cardiac output and is a fixed number given that there is a finite amount of blood in the body.
B. Total blood flow equals cardiac output and can vary significantly over time with activity levels.
C. Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in liters.
D. Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in beats per minute.
E. Changes in total blood flow are accompanied by equivalent changes in local blood flow in all areas of the body.
B
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Generally what is the result of the negative feedback process?
A) to keep the body's blood sugar level high B) to control body movement C) to regulate excretion via the kidneys D) to maintain homeostasis
A sarcomere is defined as the distance from one ________ to the next.
A. A band B. M line C. I band D. H zone E. Z disc
The central cavity of a tooth is filled with
A. dentin. B. enamel. C. cementum. D. calcium phosphate. E. pulp.
Acetylcholine is excitatory at the neuromuscular junction, but inhibitory at the SA node. Explain why this is true.
What will be an ideal response?