Cardiology

Question 1

Pericardium

Answer 1

Outer layer, fibroserous outer layer

Question 2

Fibrous

Answer 2

Forms the attachment of vessels to heart muscle

Question 3

Serous

Answer 3

Lines the epicardium

Question 4

Epicardium

Answer 4

Protective outer covering of the heart muscle, secrets serous fluid

Question 5

Myocardium

Answer 5

The muscle of the heart

Thickest at left ventricle

Question 6

Endocardium

Answer 6

Lines the heart chambers - inner layer of the heart

Question 7

Functions of the cardio system

Answer 7

1. Pumps blood
2. Maintains blood pressure within vessels
3. Ensures proper perfusion of tissues

Question 8

Why is normal BP so important?

Answer 8

1. O2 and nutrient distribution
2. Removes waste products
3. Delivery of hormones

Question 9

Systole

Answer 9

Contraction of the heart muscles

Question 10

Diastole

Answer 10

Relaxation of the heart muscle

Question 11

Sinoatrial Node – SA node

Answer 11

A.k.a –Pace maker
Located in the wall of the R atriam where the vena cava enters. Initiates the electrical impulse that stimulates contractions

Question 12

Atrioventricular Node – AV node

Answer 12

The traffic cop
Located in enteratrial septum. Transfers impulse down to the bundle of HIS. Responsible for slight delay in conduction which allows for complete filling of ventricles

Question 13

Bundle of HIS

Answer 13

Located right at the entrance of ventricle. Transfers impulse from AV node to the bundle of branches

Question 14

L and R bundle branches

Answer 14

Located in the myocardium of the ventricles, transfer impulse to purkinje fibers

Question 15

Purkinje fibers

Answer 15

Enervates the myocardium

Question 16

Anterior Vena cava

Answer 16

Vessel that brings deoxygenated blood to the heart

Question 17

Right Atrium

Answer 17

First chamber where the blood enters

Question 18

Right AV Valve

Answer 18

Tricuspid

Question 19

Right Ventricle

Answer 19

Still deoxygenated

Question 20

Pulmonary Valve

Answer 20

Enter pulmonary artery

Question 21

Pulmonary Artery

Answer 21

Sends deoxygenated blood over to lungs

Question 22

Lungs

Answer 22

Blood becomes oxygenated

Question 23

Pulmonary Vein

Answer 23

Travels back to the heart

Question 24

Left Atrium

Answer 24

Receives oxygenated blood from lungs

Question 25

Left AV Valve

Answer 25

Bicuspid

Question 26

Left Ventricle

Answer 26

Last chamber –thickest

Question 27

Aorta

Answer 27

Sends oxygen rich blood out to body