The response of a bipolar cell, i.e., whether it acts to bring about an "ON pathway" or an "OFF pathway," depends on the amount of glutamate released by photoreceptor cells
Indicate whether the statement is true or false.
FALSE
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Which of the drug treatments listed below is INCORRECTLY matched to a mode of action in treating hypertension?
A. Calcium channel blockers-reduce speed and force of contraction in vascular smooth muscle B. Alpha-adrenergic receptor blockers-reduce TPR by decreased stimulation of arteriolar smooth muscle C. Angiotensin-converting enzyme (ACE) inhibitors-reduce TPR by reducing angiotensin II concentrations D. Antagonists of parasympathetic receptors-reduce TPR by decreased stimulation of arteriolar smooth muscle E. ACE inhibitors-lowers peripheral resistance by promoting vasodilation F. Diuretics-reduce blood volume by increasing excretion of sodium and water in urine G. Beta-adrenergic receptor antagonists-reduce cardiac output by slowing heart rate and reducing contractility
When the body removes CO2 by way of the respiratory system:
a. it lowers the pH of the blood b. it raises the pH of the blood c. it has no effect on pH because CO2 is neither an acid nor a base d. it is acting as a buffer
When dissecting the sheep heart, it can be seen that the wall thickness of the pulmonary trunk and aorta is much greater than that of the superior and inferior venae cavae.
Answer the following statement true (T) or false (F)
What is the largest of the cranial nerves and the most important sensory nerve of the face?
A) Hypoglossal nerve (XII) B) Trigeminal nerve (V) C) Accessory nerve (XI) D) Facial nerve (VII) E) Abducens nerve (VI)