Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________.
Fill in the blank(s) with the appropriate word(s).
ventricular diastole
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A patient is in the emergency room for a severe anxiety attack. Their doctor administers a dose of potassium to control their elevated heart rate. Why would potassium potentially be a treatment for the cardiovascular effects of an anxiety attack?
A. Excess potassium ion concentration causes decreased rate and decreased force of contraction. B. Excess potassium ion concentration directly signals the sympathetic nervous system to cease signaling to increase heart rate C. Excess potassium ion concentration causes decreased rate and increased force of contraction. D. Excess potassium ion concentration signals the parasympathetic nervous system directly to lower heart rate
Identify the bones that do NOT house a paranasal sinus
A) frontal bones B) maxillary bones C) ethmoid bones D) sphenoid bones E) zygomatic bones
The pH of the cerebrospinal fluid is monitored by which of these brainstem centers?
A. Hypothalamic osmoreceptors B. Medullary baroreceptors C. PRG D. Central chemoreceptors
The parasympathetic ganglion that serves the eye is the ________.
A) ciliary ganglion B) pterygopalatine ganglion C) submandibular ganglion D) otic ganglion