Blood Vessels (Structure, Physiology & Dynamics) - Quiz #8 On Thurs. 8/26

18 Questions | By Geekee68 | Last updated: Mar 21, 2022 | Total Attempts: 216

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1.

The innermost layer of a blood vessel made up of a single layer of squamous endothelial cells is the __________ ___________.
2.

_____________ cells line the inner surface of the entire circulatory system.
3.

The ___________ ____________ is the middle layer of a blood vessel and is composed of smooth muscle and a thin layer of elastic tissue. It is controlled by the autonomic nervous system.
4.

The smooth muscle middle layer of blood vessels is much thicker in...
- A.
  
  Arteries
- B.
  
  Veins
5.

The __________ ___________ or ___________ is the outer layer of blood vessels and is composed of connective tissue that functions to reinforce and support the vessel.
6.

The thick muscular middle layer in _________ allows them to resist large ___________ generated from the hearts pumping action.
7.

The thin muscular layer in __________ allows them to collapse and also hold more blood (approx 70-80%).
8.

Movement of blood back to the heart is aid by what 3 factors?
9.

Valves in veins are most commonly found in the ______________.
10.

There are valves in the IVC, portal veins, and the pulmonary veins
- A.
  
  True
- B.
  
  False
11.

Capillary walls are made up of only one layer, the __________ ___________.
12.

The primary force by which gases are exchanged between the capillary walls and cells in the body is called _____________.
13.

A secondary force that moves water and dissolved materials from the capillaries into the tissue fluid is the ___________ of blood.
14.

A force that moves fluid into the capillaries is called __________ ___________.
15.

An increase in the diameter of a blood vessel and therefore allowing more blood to an area is called ______________.
16.

A decrease in diameter of a blood vessel, causing a decrease of blood flow is called __________________.
17.

The blood flow into individual capillaries is regulated by smooth muscles that encircle the entrance to the capillary called a ______________ _______________.
18.

Precapillary sphincters are only on the venous side of cells.
- A.
  
  True
- B.
  
  False

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