Chapter 20: The Cardiovascular System: The Heart

Question 1

membrane that surrounds and protects the
heart is the _______

Answer 1

PERICARDIUM

Question 2

Is the volume of blood ejected from the left
ventricle (or the right ventricle) into the aorta
(or pulmonary trunk) each minute.
 equals the stroke volume (SV) multiplied by
the heart rate (HR)

Answer 2

CARDIAC OUTPUT

Question 3

is the difference between a person’s
maximum cardiac output and cardiac output
at rest

Answer 3

CARDIAC RESERVE

Question 4

People should engage in at least 150 minutes
of moderate intensity exercise every week

Answer 4

EXERCISE AND THE HEART

Question 5

Method used to listen to sounds of the body during a physical examination

Answer 5

Auscultation

Question 6

The inner visceral layer of the serous pericardium, which is called the _____ one of the layers of the heart wall and adheres tightly to the surface of the heart.

Answer 6

Epicardium

Question 7

The middle _____ is responsible for the pumping action of the heart and is composed of cardiac muscle tissue. It makes up approximately 95% of the heart wall.

Answer 7

Myocardium

Question 8

The innermost _____ is a thin layer of endothelium overlying a thin layer of connective tissue which provides a smooth lining for the chambers of the heart and covers the valves of the heart

Answer 8

Endocardium

Question 9

The heart has four chambers, the two superior receiving chambers are the

Answer 9

Atria

Question 10

The two inferior pumping chambers are the

Answer 10

Ventricles

Question 11

Forms the right surface of the heart and receives blood from three veins - The superior vena cava, interior vena cava and coronary sinus

Answer 11

Right Atrium

Question 12

Forms most of the base of the heart. It receives the blood from the lungs through four pulmonary veins,

Answer 12

Left atrium

Question 13

Is the thickest chamber of the heart averaging 10-15mm and forms the apex of the heart. Contains trabeculae carneae and has chordae tendineae that anchor the cusps of the bicuspid valve to papillary muscles

Answer 13

Left Ventricle

Question 14

Forms most of the anterior surface of the heart. 4-5mm (0.16.02 in)

Answer 14

Right Ventricle

Question 15

The inside of the right ventrticle contains a series of ridges formed by raised bundles of cardiac muscles fibers called

Answer 15

Trabeculae Carnae

Question 16

The cusps of the tricuspid calve are connected to tendon like cords, the

Answer 16

Chordae Tendineae

Question 17

Blood passes from the left atrium into the left ventricle through the ______

Answer 17

Bicuspid valve

Question 18

supply blood to the heart muscle. Like all other tissues in the body, the heart muscle needs oxygen-rich blood to function. Also, oxygen-depleted blood must be carried away. The coronary arteries wrap around the outside of the heart. Small branches dive into the heart muscle to bring it blood.

Answer 18

Coronary arteries