Blood Vessels Flashcards
What are the five types of blood vessels?
Arteries, Veins, Arterioles, Venioles, and Capillaries
What the function of arteries
To carry oxygenated blood away from the heart
What’s the function of veins?
To carry de oxygenated blood back towards the heart
What’s the function of veniuoles?
To collect blood after the capillaries
What is the function of arterioles?
To take blood from arteries and deliver them to capillaries.
What type of capillary allows for the greatest amount of filtrate to form? Where
is this type of capillary found?
The capillary that does is the the fenestrated capillaries, found in the kidney, hypothalamus, and interinestinal capillaries.
Name the 3 layers of a blood vessel and the tissue that makes them up.
Tunica externa-Dense irregular CT
Tunica media-Smooth Muscle
Tunica interna-Areolar tissue->Simple Squamous
What is atherosclerosis?
The blockage of the arteries by plaque build up.
How do arterioles modulate blood flow into capillaries?
Arterioles will modulate blood flow into capillaries by using what is called pre capillary sphincters, which can increase or decrease blood flow.
What layers of the blood vessel are present in the capillary?
The basement layer and simple squamous epithelium
What are the types of hydrostatic pressure? Which way do they influence?
Blood hydrostatic pressure-Out
Interstitial fluid hydrostatic pressure-In
What returns excess fluid back into the CV
the lymphatic capillary
What is edema? Why would a reduction in circulating plasma proteins cause
edema?
An edema is the swelling of the skin due to extra fluid in in the tissue. Circulating plasma protein reduction may cause this because it influences water to leave a BV.
If veins are low pressure, what allows for blood to be returned to the heart?
Movement that compresses veins will push blood towards the heart.
Which type of blood vessel exerts major control of systemic vascular resistance
on a moment-to-moment basis? How does it achieve this?
The arterioles are the major control of the systemic vascular resistance because of their ability to regulate blood flow with the precapillary sphincter.
