Which class of blood vessel are the sites of blood flow regulation?

Which class of blood vessels are the site of exchange of materials?

Which system of vessels returns interstitial fluid (ISF) to the vascular system?

What is vascular smooth muscle?

• The walls of most blood vessels which contain layers of smooth muscle cells. (Ateries, Arterioles, Veins)

What is "vascular tone"?

What feature of large arteries enable them to serve as "pressure reservoirs"?

• thick muscular walls
• highly elastic

Define "pulse pressure"

(Know Equation)

the difference between systolic blood pressure and diastolic blood pressure

Side Note:

MAP (Mean Arteriol Pressure) =

diastolic P + 1/3(systolic P – diastolic P)

The Average Pulse Pressure

Describe vasoconstriction. How does it affect blood flow?

Describe vasodilation. How does it affect blood flow?

Explain the difference between an "intrinsic" and "extrinsic" factor

Intrinsic factor - Contractility of a blood vessle is controlled from within itself. 

Ex: Hyperemia - a decrease in O2 and an increase in CO2 will cause a artery to to meet the O2 demand.

Extrinsic factor - Contractility of a blood vessle is controlled by something outside.

Ex: A neuron sends norepinephrine to a blood vessle to keep the vessle "toned". An increase in NE will cause the blood vessle to contract, when the neuron stops sending NE the blood vessle will dilate

What are metarterioles, and what do they do?

• Allow blood to by-pass capillary beds.

Use Capillary Sphincters

What is transcytosis, and in which vessels does it occur?

Material is transported through the cell by vessicals, happens in the capillaries (Capillary Exchange)

Fenestrated Capilaries 

What is the "skeletal muscle pump" and what does it do for blood flow?

What is lymphedema?

Build-up of lymph in the interstitial tissues

 Caused by:

Inadequate drainage of lymph

 Filtration far greater than absorption