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Chapter 18
Quiz and Homework Questions
12
Anatomy
Undergraduate 3
05/01/2011

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Term
Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary funtion of:
Definition
capillaries
Term
Modified capillaries that are lined with phagocytes are called:
Definition
sinusoids
Term
What are the three main factors influencing blood pressure?
Definition

1. Hereditary

2. Diet

3. Stress

Term
Which statement best describes arteries?
Definition
Arteries carry blood away from the heart
Term
The circulatory route that runs from the digestive tract to the liver is called:
Definition
hepatic portal circulation
Term
The hepatic portal vein:
Definition
carries nutrient-rich blood to the liver.
Term
Which of the following is true about veins?
Definition
Veins are called capacitance vessels or blood reservoirs
Term
Which tunic of an artery contains endothelium?
Definition
tunica interna (intima)
Term
Which tunic of an artery is most responsible for maintaining blood pressure and continuous blood circulation?
Definition
Tunica media
Term
The valves in veins are important because they keep blood from:
Definition
backwards
Term
What are the three layers of a blood vessel wall?
Definition

Tunica Intima

Tunica Media

Tunica Externa

Term
What are the three types of blood vessels?
Definition

Elastic

Muscular

Arterioles

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