Week 9 Flashcards
1
Q
What are two layers cover the lungs
A
Serous membrane
- parietal pleura (chest wall)
- visceral pleura (lines lungs)
2
Q
What two layers cover the heart
A
- Parietal pericardium (chest wall)
- Visceral pericardium (lines surface of heart)
3
Q
What are the three layers of the heart drom deep to superficial
A
Endocardium -> Pericardium -> Epicardium
4
Q
Which side of coronary artery is biggest
A
left - supplies more
5
Q
State arteries on both side
A
Left
- LAD, Circumflex and marginal artery
Right
- Posterior descending artery, marginal
6
Q
Go explain heart process
A
7
Q
What is referred pain
A
When signals to spinal cord get mixed up because GVA and GSA may enter at the same area
8
Q
Describe inspiration
A
- Intercostal muscles move outwards and forwards
- Diaphragm moves down
- Floating ribs move up
- Increased volume in thoracic cavity
- ACTIVE PROCESS
9
Q
Describe expiration
A
- Intercostal muscles move inwards and down
- Diaphragm moves upwards
- Floating ribs move downwards
- Decreased volume in thoracic cavity
- PASSIVE PROCESS
10
Q
When will breathing occur
A
When pressure inside body drops below atmospheric pressure
11
Q
Which blood vessel is most commonly effected in heart attacks
A
LAD
