Term
| Arterial vessels (2) characteristics |
|
Definition
carry blood away from heart
oxygenated |
|
|
Term
| 3 characteristics of arteries |
|
Definition
1. fewer in number
2. thicker walled
3. larger lumen |
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|
Term
| 3 characteristics of arterioles |
|
Definition
1. greater in number
2. thinner walled
3. smaller lumen |
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|
Term
| Venous vessels (2) characteristics |
|
Definition
return blood to the heart
deoxygenated |
|
|
Term
| What is the most numerous of all the blood vessels? |
|
Definition
|
|
Term
| Capillaries are _____ in size |
|
Definition
|
|
Term
| Capillaries are composed of |
|
Definition
|
|
Term
|
Definition
| exchange of materials between the blood and surrounding tissues |
|
|
Term
| Layout of the circulatory system is |
|
Definition
| closed and one directional |
|
|
Term
| The layout of the circulatory system allows for (4) |
|
Definition
1. rapid, efficient circulation
2. sufficient pressure for circulation to and from the heart
3. prevents backflow
4. ensures proper oxygenation |
|
|
Term
| What is the outermost layer of the walls of blood vessels? |
|
Definition
| tunica adventitia/externa |
|
|
Term
| Tunica adventitia/externa composed of |
|
Definition
| fibrous ct with lots of collagenous fibers |
|
|
Term
| functions of tunica adventitia/externa |
|
Definition
|
|
Term
| Tunica adventitia is present only in |
|
Definition
|
|
Term
| Tunica adventitia is thicker in |
|
Definition
|
|
Term
| What is the middle layer of the walls of blood vessels? |
|
Definition
|
|
Term
|
Definition
| smooth muscle tissue and elastic fibers |
|
|
Term
| function of tunica media (muscle and elastic fibers) |
|
Definition
muscle = contractility
elastic fibers = elasticity and recoil |
|
|
Term
| Tunica media present only in |
|
Definition
|
|
Term
| Tunica media is thicker in ____ where it prevents _______. |
|
Definition
|
|
Term
| What is the innermost layer of the walls of the blood vessels? |
|
Definition
|
|
Term
| Tunica intima/interna composed of |
|
Definition
| endothelium/simple squamous |
|
|
Term
| Function of tunica intima/interna |
|
Definition
| allows for blood to flow smoothly |
|
|
Term
| Tunica intima/interna is present in |
|
Definition
|
|
Term
| Where does the exchange of materials occur? |
|
Definition
|
|
Term
| pulmonary begins with the ___ and ends with the ____ |
|
Definition
right venticle
left atrium |
|
|
Term
| pulmonary takes ____ blood to the ____ for ____ |
|
Definition
deoxygenated
lungs
gas exchange |
|
|
Term
| systemic begins with the ____ and ends with the _____ |
|
Definition
left ventricle
right atrium |
|
|
Term
| systemic takes ____ to ____ |
|
Definition
oxyenated blood
body systems |
|
|
Term
|
Definition
|
|
Term
| what nourishes the heart? |
|
Definition
|
|
Term
|
Definition
| oxygen to developing fetus |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| go to a specific organ before returning to general circulation |
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Term
|
Definition
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