unit 16 end of unit

Question 1

Located between the left ventricle and the aorta

Answer 1

Aortic Valve

Question 2

Located between the left atrium and the left ventricle

Answer 2

Mitral valve

Question 3

largest artery of the systemic circuit

Answer 3

Aorta

Question 4

Bring(s) oxygenated blood to the left atrium from the lungs

Answer 4

pulmonary veins

Question 5

layer of the heart composed of cardiac muscle tissue

Answer 5

Myocardium

Question 6

Bring(s) deoxygenated blood to the lungs

Answer 6

Pulmonary trunk

Question 7

Located between the right atrium and the right ventricle

Answer 7

Tricuspid valve

Question 8

Largest vein of the coronary circulation

Answer 8

Coronary sinus

Question 9

Outer layer of the serous pericardium

Answer 9

parietal pericardium

Question 10

Fibrous cords that attaches to valves

Answer 10

Chordae tendineae

Question 11

inner layer of the serous pericardium

Answer 11

visceral pericardium

Question 12

finger like muscular projections from the ventricles

Answer 12

papillary muscles

Question 13

The veins of the systemic circuit carry ___________ blood and the veins of the pulmonary circuit carry _____________ blood.

Answer 13

1. oxygenated

2. deoxygenated

Question 14

The pulmonary and aortic valves are known as…

Answer 14

semilunar valves

Question 15

The right and left coronary arteries are the first branches off the…

Answer 15

aorta

Question 16

cardiac muscle cells are known as ____________. Adjacent cells are joined together by ________________, which allow the heart to ____________.

Answer 16

1. cardiac myocytes
2. intercalated discs
3. to contract as a unit

Question 17

Which is the normal pacemaker of the heart?

Answer 17

S.A. node

Question 18

the purpose of the AV node delay is to …

Answer 18

allows the atria to depolarize and contract before the ventricles and allow the ventricles to fill with blood.

Question 19

what is ligamentum ateriosum called before birth? BONUS

Answer 19

Ductus Arterious (DA)

Question 20

1. the sinoatrial node generates an action potential that spreads thru the artia.
2. there is a delay when the action potential reaches the atrioventricular node.
3. the action potential reaches the ventricles via the atrioventricular bundle.
4. the bundle branches conduct the action potential thru the interventricular septum.
5. the Purkinje fibers conduct the action potential to ventricular myocytes.

Answer 20

the cardiac conduction system.

Question 21

The S.A. node sinus in fish is called….

Answer 21

venosous (pace maker)