The heart Flashcards
1
Q
What is the heart?
A
A transport system pump
2
Q
where is the heart located?
A
Within the mediastinum of thorax
3
Q
What are the three layers of the heart?
A
PERIcardium
MYOcardium
ENDOcardium
4
Q
Where is the flat base directed?
A
Toward the right shoulder
5
Q
Where is the apex pointed towards?
A
The left hip
6
Q
What is the Pericardium?
A
a double-walled, fibro-serous sac
7
Q
What are the two types of Pericardium?
A
Fibrous pericardium
Serous pericardium
8
Q
What is Fibrous pericardium? What does it do?
A
It anchors and protects the heart.
It also prevents overfilling of the heart.
9
Q
Isovolumetric contraction
A
- when pressure is rising, AV valves and SL valves are closed
10
Q
Isovolumetric relaxation
A
- when pressure is decreasing, AV valves and SL valves are closing
11
Q
Top, Middle, bottom
A
ECG, Pressure changes, Volumetric changes
12
Q
Stroke volume
A
13
Q
A
