Cardiovascular system

What layers of the heart is 1

Epicardium

What layer of the heart is 2

Myocardium

What layer of the heart is 3

Endocardium

What is the cycle called?

Cardiac cycle

1. Atrial Diastole & Ventricular Diastole (Relaxation & Filling): Both the atria and ventricles are relaxed. Blood flows from the veins into the atria, and then passively fills the ventricles.

2. Atrial Systole (Contraction): The atria contract, pushing the remaining blood into the ventricles.

3. Ventricular Systole (Contraction): The ventricles contract, pumping blood out to the lungs and the rest of the body. During this time, the atria are relaxing (atrial diastole) and refilling with blood.

How to read blood pressure

Systole: contracting

Diastole: relaxing

What does the blue blood flow symbolize? (Hint: what circulation)

Pulmonic circulation

What does the red blood flow symbolize? (Hint: circulation)

Systemic circulation

What circulation does this involve?

Coronary circulation

Blood vessels involved with coronary circulation

4 areas on chest to listen to heartbeat

A: aortic

B: pulmonic

C: tricuspid

D: mitral

Intrinsic conduction system: A

SA node

Intrinsic conduction system: B

AV node

Intrinsic conduction system: C

Bundle of His

Intrinsic conduction system: D & E

L and R bundle Branches

Intrinsic conduction system: F

Purkinje Fibers

Which EKG is this? Letter B

Normal Sinus rhythm

Which EKG is this? Letter C

Bradycardia

Which EKG is this? Letter A

Tachycardia