Chapter 15: Cardiovasular System Flashcards
1
Q
what two circuits do blood vessels form?
A
pulmonary & systemic
2
Q
pulmonary circuit
A
- transports oxygen poor blood from heart to lungs, & back to heart
- in lungs, blood picks up oxygen & drops off CO2
3
Q
systemic circuit
A
- transports oxygen rich blood from heart to all body cells, & back to the heart
- blood deniers nutrients to cells & removes waste
4
Q
circuit
A
no close endings; no beginning or end
5
Q
left side of heart
A
oxygen rich, oxygenated
6
Q
right side of heart
A
oxygen poor, deoxygenated
7
Q
what kind of blood is in the pulmonary vein?
A
oxygenated
8
Q
what kind of blood is in the pulmonary artery?
A
deoxygenated
9
Q
heart
A
hollow, cone-shaped muscular pump; located in mediastinum of the thoracic cavity, superior to diaphragm
10
Q
4 chambers of heart
A
- right atrium
- right ventricle
- left atrium
- left ventricle
11
Q
upper chambers of heart are called?
A
atria
12
Q
lower chambers of heart are called? (& function)
A
ventricles, pump
13
Q
location of heart (5)
A
- posterior to sternum
- medial to lungs
- anterior to vertebral column
- base lies at 2nd rib
- apex lies at 5th intercostal space
14
Q
pericardium
A
covering over heart & large blood vessels
15
Q
3 layers of pericardium
A
- fibrous
- parietal
- visceral