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Flashcards in the heart Deck (11):
1

orientation

fist sized, conical shape
left of body midline, posterior to the sternum in mediastinum
right side is more anterior
left side more posterior

2

mediastinum

space between sternum (ventral), vertebral column (dorsal), the lungs (right and left lateral), and diaphragm (caudal)

3

pericardium

sac that goes around heart
constrains dialation

4

fibrous pericardium

tough\sac of fibrous connective tissue that envolopes heart
attaches to great vessels and diaphragm

5

serous pericardium

delicate
parietal layer: lines inside of fibrous pericardium
visceral layer: directly covers outer surface of heart

6

pericardial cavity

between the 2 serous layers and contains fluid film

7

oxygen poor blood

superior vena cava, right atrium, right ventricle, pulmonary arteries

8

oxygen rich blood

aorta, left ventricle, left atrium, pulmonary veins

9

pulmonary circuit

pumps blood from right side of heart through pulmonary vessels, to the lungs, and back to left side of heart
- depleted oxygen in blood

10

systemic circuit

pumps blood from left side of heart, through systemic vessels in peripheral tissue, and back to right side of heart
- rich in oxygen blood

11

blood flow

unidirection
right side of heart > lungs > left heart > systemic vessels > right side