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Anamaria Gutierrez

Physiology weeks 7-13

QuestionAnswer
Movement of the membrane potential away from zero (below the usual RMP) is called hyperpolarization.
Which membrane receptor acts to directly change ion permeability when stimulated? Gated-channel receptor.
The sodium-potassium pump actively pumps three potassium ions out of the neuron and two sodium ions into the neuron. False.
Both sympathetic and parasympathetic divisions are tonically active, which means they continually conduct impulses to autonomic effectors.
The somatic motor system includes all the _____ motor pathways _____ the CNS. voluntary; outside.
The sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is: malleus, incus, and stapes.
Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition. tectorial.
The olfactory tract carries impulses associated with: smell.
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called diapedesis.
The localized pressure gradient needed to maintain blood flow in a tissue is called perfusion pressure.
During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. thymocytes
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.
The term used to describe the volume of air exchanged during normal inspiration and expiration is: tidal volume.
The tendency of the thorax and lungs to return to the preinspiration volume is called: elastic recoil.
Which of the following combinations in arterial blood could cause an increase in the respiratory rate? Increased PCO2, decreased arterial pressure, decreased pH, decreased PO2.
Created by: user-1990588
 

 



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