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Amy Cisneros

Physiology 7-13

QuestionAnswer
Stimulation of gastric juice secretion occurs in all of the following phases except the _____ phase. intestinal
Internal respiration can be defined as: the exchange of gases between the blood capillaries and the tissue cells.
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.
During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? It flows into the inferior vena cava.
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of prothrombin activator.
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.
Which sphincters function as regulatory valves that reduce the flow of blood through a network of capillaries when they contract and constrict the arterioles? precapillary sphincters
Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition. tectorial
How does a dually innervated autonomic effector differ from a singly innervated autonomic effector A dually innervated effector receives input from both sympathetic and parasympathetic pathways. A singly innervated autonomic effector receives input from only the sympathetic division.
Acetylcholine binds to _____ receptors. cholinergic
The speed of a nerve impulse depends on the neuron’s resting potential. False
Created by: amyc3144
 

 



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