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wk 6-13

Physiology

QuestionAnswer
Because fats are insoluble in water, they must be emulsified.
The final step in lipid transport by the intestines is the formation of chylomicrons.
During which stage of swallowing is there a risk of food entering respiratory pathways? Oropharyngeal
What percentage of this blood flow comes from the hepatic portal system? 80%
Pepsinogen is converted to pepsin by hydrochloric acid, which is produced by the _____ of the gastric glands. parietal cells
_____ is the passage of substances through the intestinal mucosa into the blood or lymph. Absorption
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called diapedesis.
A hematocrit of 56% would be an indication of: polycythemia.
The term used to describe the collection of mechanisms that influence the circulation of blood is: hemodynamics.
Which two factors promote the return of venous blood to the heart? blood-pumping action of respirations and skeletal muscle contractions
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.
The localized pressure gradient needed to maintain blood flow in a tissue is called perfusion pressure.
The mechanisms of which three hormones work together to regulate blood volume? aldosterone, ANH, and ADH
The physiological mechanism that dissolves clots is known as fibrinolysis.
Factors that affect the strength of myocardial contraction are called inotropic factors.
Created by: Keylee1
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