Cells in the stria vascularis have a high concentration of Na+-K+ ATPase

 

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#Unit 7. System Physiology – Animal

Activation of the M2 receptors decreases cyclic adenosine 3′,5′-monophosphate (cAMP) in the cells, and this slows the opening of Ca 2+ channels.

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#Unit 7. System Physiology – Animal

βγ subunit of a G protein, open a special set of K + channels. The resulting IKAch slows the depolarizing effect of Ih .

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#Unit 7. System Physiology – Animal

 Systemic arterial pressure during the cardiac cycle:

Diastolic pressure

Systolic pressure

Pulse pressure

Mean arterial pressure

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#Unit 7. System Physiology – Animal

Diastolic pressure is the lowest arterial pressure in the arteries during ventricular relaxation when no blood is being ejected from the left ventricle.

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#Unit 7. System Physiology – Animal

Systolic pressure is the highest arterial pressure in the arteries after blood has been ejected from the left ventricle during systole

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#Unit 7. System Physiology – Animal

The “blip” in the arterial pressure curve, called the dicrotic notch (or incisura), is produced when the aortic valve closes