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Physiology Week 7-13

QuestionAnswer
Dopamine, epinephrine, and norepinephrine are classified as: catecholamines.
Excitatory neurotransmitters are most likely to: initiate an action potential.
What is the difference between a somatic reflex and an autonomic reflex? A somatic reflex is caused by contraction of skeletal muscles, whereas an autonomic reflex consists of contraction of smooth or cardiac muscle or secretions of glands.
Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. coccygeal
In comparison with the nervous system, the regulatory effects of the endocrine system are: slow to appear but long-lasting.
The production of thyroid hormone is stimulated by another hormone from the: anterior pituitary.
Circulatory shock caused by a drop in the amount of blood in the circulatory system is called _____ shock. hypovolemic
What is the functional significance of large areas of cardiac muscle being electrically coupled to form a single functional syncytium? Because they form a syncytium, muscle cells can pass an action potential along a large area of the heart wall, stimulating contraction in each muscle fiber of the syncytium.
Chemotaxis is the process by which a cell navigates toward the source of the chemotactic factor by way of detecting and then moving toward higher concentrations of the factor.
_______ is the only antibody class with the ability to cross the placental barrier, providing passive immunity to the developing fetus during pregnancy. IgG.
Which gas law deals with the solubility of gases in solution? Henry
By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen? 55% 97%
The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is: vasoactive intestinal peptide.
The hormone that inhibits gastric muscle, slowing passage of food into the duodenum, is called: gastric inhibitory peptide.
Created by: ChrisJay213
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