Term
| What are the top chambers of the heart called? |
|
Definition
Left and Right Atrium.
"Atria" is plural |
|
|
Term
| What are the bottom chambers of the heart called? |
|
Definition
|
|
Term
Tricuspid Valve How many cusps? Where is it located between? |
|
Definition
| 3 cusps or flaps. Between R atrium and R ventricle |
|
|
Term
Bicuspid or Mitral Valve How many cusps and where is it located? |
|
Definition
| 2 cusps. Between L atrium and L ventricle |
|
|
Term
Pulmonary (Semilunar) Valve Location? What does pulonary mean? |
|
Definition
| Pulmonary means "lungs". At opening to pulmonary artery. |
|
|
Term
|
Definition
|
|
Term
| How many ways do valves open up and why? |
|
Definition
| One way to leek blood from flowing back |
|
|
Term
| The heart is a ____, its right and left sides pump at the _____. |
|
Definition
|
|
Term
| Where does the heart get its supply of blood? |
|
Definition
| From the Coronary arteries |
|
|
Term
What do the arteries do?(two things)
Gives two characteristics of arteries. |
|
Definition
1.Carries oxygenated blood (except pulm. artery)
2.Carries blood AWAY from the heart
1. Under high presssure so walls are thick.
2.muscular and elastic (so it can expand) |
|
|
Term
|
Definition
| Largest artery in the body. |
|
|
Term
Arterioles small or large?What does this connect? |
|
Definition
| Small arteries connecting artery and capillary |
|
|
Term
|
Definition
1.smallest blood vessels.
2.Gas excahnge takes place here. O2 to tissues, C02 back to blood.
3. only one cell thick so gas can pass through |
|
|
Term
Venules small or large? What does it connect? |
|
Definition
| small veins connecting capillaries and veins |
|
|
Term
|
Definition
1.Carries deoxygenated blood. 2.carries blood towards the heart 3.thin walls, less muscular 4.has valves inside to make sure blood flows in 1 direction |
|
|
Term
| A group of cells that give off an eletrical signal that causes the heart to contract in a rythem.... |
|
Definition
|
|
Term
Sinoatrial node where is it located and what does it cause? |
|
Definition
| in the atrium and causes top part of heart to contract |
|
|
Term
Bundle of his Where is it located and what does it cause? |
|
Definition
| in the top of ventricles and causes bottom of heart to contract. |
|
|
