PSL301: Cardio 1 Flashcards Preview

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Flashcards in PSL301: Cardio 1 Deck (70)
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1

Main functions of the circulatory system

1. Transport
2. Remove metabolic byproducts
3. Maintain homeostasis by O and nutrient supply
4. Regulate body temperature
5. Humoral communication

2

Humoral communication

Transport of hormones to the correct location
Communication using hormones

3

Wastes move from __ to ___

cells
liver for processing

4

Immune cells, antibodies, clotting proteins move from __ to ___

blood (already there)
cells that need them

5

stored nutrients move from __ to ___

liver & adipose tissue
all cells

6

nutrients & water move from __ to ___

intestinal tract
all cells

7

The aorta splits into...

Ascending arteries
Abdominal aorta

8

Liver gets fresh blood from...

hepatic artery

9

Pelvis & legs gets fresh blood from...

descending arteries

10

Heart is composed mostly of...

myocardium

11

Pericardium

Membrane sac that is fluid filled
Connective tissue encasing for the heart
Holds the heart in place

12

The heart is held by...

pericardium

13

The bulk of the heart is made up of...

ventricles

14

Myocardium

Cardiac muscle

15

List all the valves in the heart

1. Bicuspid (mitral) valve
2. Tricuspid valve
3. Pulmonary valve
4. Aortic valve

16

Bicuspid valve separates...

Left atrium / left ventricle

17

Tricuspid valve separates...

Right atrium / right ventricle

18

Pulmonary valve separates...

Right ventricle / pulmonary arteries

19

Aortic valve separates...

Left ventricle / aorta

20

Bi- & tricuspid valves are...

atrioventricular valves

21

___ re-enforces AV valves

Chordae tendinae

22

Chordae tendinae are attached to...

muscular projections within the ventricles (papillary muscles)

23

How many "cups" does the semilunar vavles have?

3

24

Posterior of the heart is ___
Anterior is ___

Flat (face away from us)
Pointed (face towards us)

25

Function of AV valves

Closed during ventricular contraction to prevent backflow from ventricles -> aorta

26

Function of semilunar valves

Closed during ventricular relaxation to prevent backflow from arteries -> ventricles

27

Superior vena cava gets blood from...

Top half of the body

28

Inferior vena cava gets blood from...

Bottom half of the body

29

What supplies O and nutrients to the heart?

1. Left coronary artery
2. Left cardiac vein
3. Right coronary artery
4. Right cardiac vein

30

Coronary circulation

Circulation of blood within the heart