Chapter 18 Cardiovascular system - heart

Question 0

Describe the pericardium of the heart

Answer 0

Superficial fibrous pericardium

Question 1

Describe the location of the heart

Answer 1

Approximately the size of a fist

Question 2

Describe the layers of the heart wall

Answer 2

Epicardium—visceral layer of the serous pericardium Myocardium
Spiral bundles of cardiac muscle cells
Fibrous skeleton of the heart: crisscrossing, interlacing layer of connective tissue

Question 3

How many chambers are there

Answer 3

4 chambers
2 atrias
2 ventricles

Question 4

Describe the atrias

Answer 4

Two atria

Separated internally by the interatrial septum

Question 5

Describe the ventricles

Answer 5

Two ventricles

Question 6

List the vessels entering the right & left atrium

Answer 6

Atria: The Receiving Chambers

Question 7

List the ventricle compartments

Answer 7

Ventricles: The Discharging Chambers

Question 8

List the pathway from the right atrium to the lungs

Question 9

List the pathway of the blood from the lungs to the aorta

Answer 9

Lungs

Question 10

Differentiate the system is and pulmonary circuits

Answer 10

Equal volumes of blood are pumped to the pulmonary and systemic circuits
Pulmonary circuit is a short, low-pressure circulation
Systemic circuit blood encounters much resistance in the long pathways
Anatomy of the ventricles reflects these differences

Question 11

Describe coronary circulation

Answer 11

The functional blood supply to the heart muscle itself