Heart (Interior View)

Question 1

Coronary Sinus

Answer 1

Drains the Myocardium

Question 2

Right atrioventricular Valve

Answer 2

Tricupid valve (3 flaps/ cusps)
Blood from the right atrium passes through this into the right ventricle

Question 3

Pulmonary semilunar Valve

Answer 3

Venous blood is then propelled past this into the pulmonary trunk

Question 4

Left atrioventricular vavle

Answer 4

bicuspid or Mitral (Two cusps)

Blood from left atrium passes through into the left ventricle

Question 5

Aortic semilunar Valve

Answer 5

blood from the left ventricle passes through into the ascending aorta

Question 6

Papillary Muscles

Answer 6

Nipple shaped
Found in each ventricle
connect to the cusps through chordae tendineae
These muscles contract and tug on the chordae tendineae in order to hold the valves CLOSED

Question 7

Chordae Tendineae

Answer 7

Tough connective tissue strands

Tug on these CLOSING the valve

Question 8

Murmur

Answer 8

Blood may flow back and forth across the cusps

Question 9

Conduction system of the heart

Answer 9

Starts at the Sino-atrial Node 
Then to the atrioventiricular node
Bundle of His
Right and left Bundle Branches
into the Purkinje Fibers causing ventricles to contract

Question 10

Sino Atrial Node

Answer 10

S-A Node
wall of the right atrium
pacemaker of the heart
Initiates the heart rhythm

Question 11

Atrioventricular Node

Answer 11

A-V Node

Lower part of the interatrial Septum, above the tricuspid valve

Question 12

Atrioventricular Bundle of His

Answer 12

A-V node connects here

Runs within the interventricular septum

Question 13

Purkinje Fibers

Answer 13

Depolarize the cardiac muscle cells, causing ventricles to contract

Question 14

Fossa Ovalis

Answer 14

Wall of the right atrium

Remnant of Embryonic Foramen Ovale

Question 15

His

Answer 15

A man’s name

Question 16

Foramen

Answer 16

Opening

Question 17

Fossa

Answer 17

Ditch/ valley

Question 18

Auricle

Answer 18

Ear-like