3-heart

Question 0

– – is where blood from WALLS of heart returns to the heart

Answer 0

Coronary sinus

Question 1

Name the 3 layers of the heart wall from outermost to innermost

Answer 1

Epicardium
Myocardium - involuntary muscle
Endocardium

Question 2

The coronary sinus opens into the – atrium on the – surface

Answer 2

Opens into right atrium on posterior surface

Question 3

Which 3 vessels empty into the right atrium

Answer 3

Superior vena cava
Inferior vena cava
Coronary sinus

Question 4

The – – is a shallow depression in the right atrium divides the heart into 2 and allows for efficient distribution of oxygenated blood thru body

Answer 4

Fossa ovalis

Question 5

Tricuspid valve

Answer 5

Right atrioventricular valve (3 lobes)

Question 6

The – atrium receives oxygenated blood from 4 pulmonary veins

Answer 6

Left atrium

Question 7

Other names of left atrioventricular valve

Answer 7

Bicuspid & mitral

Question 8

The AORTIC valve has – thin semilunar cusps

Answer 8

Three (the cusps look like a peace sign)

Question 9

The – mm are parallel ridges in the atria wall

Answer 9

Pectinate

Question 10

A thickly woven arrangement of cardiac m (same as pectinate mm)

Answer 10

Trabeculae carnae

Question 11

The chordae tendinae are held by the – m

Answer 11

Papillary m

Question 12

2 branches of the ascending aorta

Answer 12

Left and right coronary arteries

Question 13

3 branches of Aortic Arch

Answer 13

1. Brachiocephalic trunk - right common and carotid arteries
2. Left common carotid artery
3. Left subclavian artery
   * heart is centered slightly to the left*

Question 14

The – nerves are next to the esophagus

Answer 14

Vagus

Question 15

The – is formed from fusion of left and right Brachiocephalic veins and drain into the RIGHT atrium

Answer 15

Superior vena cava

Question 16

Name change of Descending Thoracic aorta and where it happens

Answer 16

Renamed descending Abdominal aorta at the diaphragm

Question 17

Where does the aorta bifurcate into left and right common iliac arteries

Answer 17

4th lumbar vertebra

Question 18

Left and right common iliac arteries divide into

Answer 18

Internal and external arteries

Question 19

Where av node is located

Answer 19

Interatrial septum (before av valve)

Question 20

2 events for 1 heart beat

Answer 20

1. Atrial systole (contraction) and ventricular diastole (relax)
2. Atria relax/diastole, ventricular systole

Question 21

• • is closure of av valves as ventricles contract

- - is closure of semilunar valves as ventricles relax

Answer 21

Lubb

Dupp

Question 22

In ventricular systole, pressure in the ventricles rises high enough => – valves open

Answer 22

Semilunar valves open as ventricles contract

Question 23

Control center of heart rate

Answer 23

Brainstem

Question 24

Which nerves for parasympathetic control (rest & digest)

Answer 24

Vagus n

Question 25

Bradycardia vs tachycardia

Answer 25

Bradycardia - slow hr
Tachycardia - fast hr
full of BS - Brady is slow

Question 26

Resting hr

Answer 26

75 bpm