The ejection fraction is ________.
A. the ratio of stroke volume to end diastolic volume
B. the ratio of end diastolic volume to end systolic volume
C. decreased by sympathetic agonists
D. increased by parasympathetic agonists
Answer: A
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__________ are absorbed by receptor mediated endocytosis in the terminal ileum
a. Fatty acids and monoglycerides b. Bile salts c. Vitamin B12 d. Amino acids e. All of the above
Slowly adapting proprioceptors that would let you know the position of your thumb without looking at it are known as
A. phasic receptors. B. primary receptors. C. secondary receptors. D. tonic receptors.
When vagus nerve stimulation was applied to the frog heart, _______
A) the force of contraction increased B) the force of contraction decreased C) the force of contraction increased and the heart rate slowed and eventually stopped D) the heart rate slowed and eventually stopped E) the force of contraction decreased and the heart rate slowed and eventually stopped
Answer the following questions true (T) or false (F)
1. Arteries in the systemic circuit carry oxygenated blood while arteries in the pulmonary circuit transport deoxygenated blood. 2. Veins regulate blood pressure and control blood flow to organs. 3. Vessels with a smaller radius will have an increased resistance to blood flow.