Heart

Question 1

Parts of the Circulatory System:

Answer 1

1. Heart
2. Arteries
3. Arterioles
4. Capillaries
5. Venules
6. Veins
7. Lymph Vascular / Lymphatic system
8. Reticulo-Endothelial structures

Question 2

Is the pump for the Circulatory system that lies in the lower anterior chest.

Answer 2

Heart

Question 3

Partition between the 2 halves of the chest dividing it into (R) and (L) hemithorax.

Answer 3

Mediastinum

Question 4

Is the thin lining membrane of the heart which covers the surfaces of the valves within the heart.

Answer 4

Endocardium

Question 5

– is the special striated muscle of the heart which is thick at the (L) ventricle and contract to decrease the size of the heart and force blood out of its chambers.

Answer 5

Myocardium

Question 6

– is the outer covering of the heart

Answer 6

Pericardium

Question 7

– is the inner layer close to the muscle layer.

Answer 7

A. Visceral Pericardium

Question 8

– is the outer layer which forms a thin sac within which the heart contract.

Answer 8

B. Parietal Pericardium

Question 9

FOUR CHAMBERS OF THE HEART

Answer 9

1. (L) Atrium or (L) Auricle
2. (R) Atrium or (R)
   Auricle
3. (L) Ventricle
4. (R) Ventricle

Question 10

Openings between the (R) Atrium and (R) Ventricle and between the (L) Atrium and (L) Ventricle are present called the

Answer 10

AtrioVentricular Opening.

Question 11

Guard these openings to prevent blood from flowing back to the Atria from the Ventricle.

Answer 11

Flap valves

Question 12

– is that part of the main septum between the two Atria.

Answer 12

Interatrial Septum

Question 13

– is that part of the main septum that separates the two ventricles.

Answer 13

Interventricular Septum

Question 14

– is the anterior part of the (L) ventricle that opens into the Pulmonary artery.

Answer 14

Conus Arteriosus or Pulmonary Conus

Question 15

– are the first two branches of the Aorta and supply the heart with blood

Answer 15

Coronary Arteries

Question 16

Opening In the Right Atrium

Answer 16

Superior and Inferior Vena Cava Opening

Question 17

Has 4 openings, one for each of the Pulmonary veins.

Answer 17

(L) Atrium

Question 18

Has an opening in the pulmonary orifice.

Answer 18

(R) Ventricle

Question 19

Has an opening in the Aortic orifice.

Answer 19

(L) Ventricle

Question 20

– carry blood from the heart to the lungs and return it to the Heart.

Answer 20

Pulmonary Arteries and Veins

Question 21

– carry blood from the heart to all other parts of the body and return it to the heart via the Aorta and Vena Cava.

Answer 21

Systemic Arteries and Veins