When You Stand Up Suddenly, What Happens Initially to the Blood

question 10

Multiple Choice

When you stand up suddenly, what happens initially to the blood pressure at the carotid sinus, prior to any compensation?

• A) It decreases by approximately Dgh where h is the distance between aorta and carotid sinus
• B) Nothing happens to it because the carotid sinus is at the center of gravity of the circulatory system
• C) Nothing happens to it because the heart rate increases to adjust the pressure
• D) Nothing happens to it because the heart rate decreases to adjust the pressure
• E) Nothing happens to it because the stroke volume increases to adjust the pressure

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Definitions:

IR Spectrum

A graphical representation of a molecule's infrared light absorption at different frequencies, revealing information about molecular bonds and their environments.

Functional Groups

Distinctive arrays of atoms within molecules tasked with triggering the molecules' conventional chemical reactions.

Sodium Dichromate

A powerful oxidizing agent with the formula Na2Cr2O7, used in various industrial and laboratory applications.

IR Spectroscopy

A technique used in chemistry to identify molecular structures based on their absorption of infrared light at different wavelengths.