Cardiovascular System Chapter 11

Anatomy of Heart Follow along on your handout and label and write notes accordingly Different parts of heart numbered 1-15

1) Aorta

1) Aorta

2) Superior Vena Cava Large diameter

2) Superior Vena Cava

3) Right Pulmonary Artery

3) Right Pulmonary Artery

4) Right Pulmonary Veins

Pulmonary Circuit

5) Right Atrium

6) Right Atrioventricular Valve (Tricuspid)

7) Right Ventricle

8) Inferior Vena Cava Large diameter

9) Left Pulmonary Artery

10) Left Pulmonary Veins

11) Left Atrium

12) Left Atrioventricular Valve (Bicuspid)

13) Semilunar valves Opening of the aorta and pulmonary artery.

14) Left Ventricle Thickest of all chambers

15) Descending aorta Part of the aorta that descends to lower body

Septum Dividing wall

Chordae Tendineae “Heart Strings” Cord-like tendons

Chordae Tendineae

Chordae Tendineae

The function of the cardiovascular system is to deliver oxygen and nutrients and to remove carbon dioxide and other waste products

The Heart Location Orientation About the size of your fist Thorax between the lungs Orientation About the size of your fist

The Heart

The Heart: Coverings Pericardium—a double-walled sac

The Heart: Coverings

The Heart: Coverings

The Heart: Heart Wall Three layers Epicardium Myocardium Endocardium

The Heart: Heart Wall Epicardium Outside layer

The Heart: Heart Wall Myocardium Middle layer

The Heart: Heart Wall Endocardium Inner layer

The Heart: Heart Wall

The Heart: Heart Wall

Systemic and Pulmonary Circulations Systemic circulation

Systemic and Pulmonary Circulations

Systemic and Pulmonary Circulations

Coronary Circulation Blood in the heart chambers does not nourish the myocardium The heart has its own nourishing circulatory system consisting of:

Coronary Circulation