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Jaclynn Cooper

Physio 7-13

QuestionAnswer
For a neurotransmitter to produce an inhibitory postsynaptic potential, which of the following channels must open? Potassium and/or chloride channels
Acetylcholine is in the same class of neurotransmitters as: Serotonin. Histamine. Dopamine. None. None.
When an impule reaches a synapse: Chemical transmitters are released
Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate Vagus
The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. T or F True
Which of the following is true about pain receptors? Alpha fibers are associated with sharp, localized pain
The major hormone produced by the corpus luteum is: Progesterone
Which is not true of the hormone somatostatin? It stimulates the secretion of insulin
Factors that affect the strength of myocardial contraction are called Inotropic factors
A decrease in the amount of white blood cells is called Leukopenia
The primary organ of the lymphatic system is the Thymus
Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. Cell-mediated
During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. Thymocytes
Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in Cytolysis
The major form by which carbon dioxide is transported in the circulatory system is: As bicarbonate ions
Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin? Decreased PO2 and increased PCO2
Standard atmospheric pressure is _____ mm Hg. 760
Excessive fluid in the pleural cavity would be most likely to cause: Decreased vital capacity
An end product of fat digestion is: Glycerol
Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food? Cephalic phase
Which of the following is not true of enzymes? They change chemically and are in the end products of the reaction.
Which blood vessel carries absorbed food from the GI tract to the liver? Portal vein
The process of fat emulsification consists of: Breaking fats into small droplets.
Which of these is not an example of mechanical digestion? Moistening the food
When classified according to the kind of chemical reactions catalyzed, digestive enzymes are referred to as _____ enzymes. Hydrolyzing
Created by: jaclynncooper90
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