Heart

Question 1

Function of right atrium

Answer 1

Recieves deoxygenated blood from body via:
Superior vena cava - drains upper body
Inferior vena cava - drains lower body
Coronary sinus - drains blood from heart itself

Question 2

Function of right ventricle

Answer 2

Takes up most of anterior surface of heart.
Receives blood from right atrium via tricuspid valve
Pumps blood into pulmonary trunk (through pulmonary valve/right semilunar)
Pulmonary trunk splits into right and left pulmonary arteries which takes blood to right and left lungs retrospectively.

Question 3

Function of left atrium

Answer 3

On posterior of heart
Recieves oxygenated blood from lungs via 4 pulmonary veins (2 left and 2 right)

Question 4

Function of left ventricle

Answer 4

Thick muscular walls
Recieves blood from left atrium via mitral/bicuspid valve
Pumps blood into aorta (ascending) which takes oxygenated blood around body (through aortic/left semilunar valve).

Question 5

Function of superior vena cava

Answer 5

Drains upper body

Question 6

Function of inferior vena cava

Answer 6

Drains lower body

Question 7

Function of coronary sinus

Answer 7

Drains blood from heart itself

Question 8

Tricuspid valve function

Answer 8

Right atrium to right ventricle

Question 9

Right semilunar valve function

Answer 9

Pulmonary valve. Lets blood into pulmonary trunk

Question 10

Function of pulmonary trunk

Answer 10

Splits into right and left pulmonary arteries which takes blood to right and left lungs retrospectively to be oxygenated. (Takes blood from right ventricle)

Question 11

Function of pulmonary veins

Answer 11

2 on each side.
Takes newly oxygenated blood from lungs to left atrium of heart.

Question 12

Function of mitral/bicuspid valve

Answer 12

Let’s blood from left atrium into left ventricle

Question 13

Function of left semi lunar valve

Answer 13

Aortic valve. Let’s blood from left atrium into aorta to be pumped around the body.