Practical 1: The Heart Flashcards
(384 cards)
What are the blood vessels that carry blood away from the heart?
Arteries
What color are arteries usually? When are they different?
Usually red
Blue in the pulmonary and placental arteries
Why are arteries usually red?
The high concentration of oxygen
What are the blood vessels that carry blood towards the heart?
Veins
What color are veins usually? When are they different?
Usually blue
Red in the pulmonary and placental veins
Why are veins usually blue?
They have a relatively low level of oxygen
What is the tunica media?
Middle layer of tissue in the walls of blood vessels
Is the tunica media thicker or thinner in veins?
Tunica media is thinner in veins
Is the tunica media thicker or thinner in arteries?
Tunica media is thicker in arteries
Do arteries have valves?
Arteries typically don’t have valves, other than the pulmonary and aortic arteries
Do veins have valves?
Yes, many veins have one-way valves that prevent blood from flowing backward and help pump blood toward the heart
A
Right Brachiocephalic V
B
Left Brachiocephalic V
C
Superior Vena Cava
D
Right Auricle
E
Right Coronary A
F
Small cardiac V
G
Apex
H
Great cardiac V
I
Anterior Interventricular A
J
Left auricle
K
Pulmonary trunk
L
Left pulmonary A
M
Ascending aorta