Heart

Question 1

The adult heart is shaped like a ____ and
approximately the size of a ____

Answer 1

blunt cone; closed fist

Question 2

The adult heart has a mass of

Answer 2

250-350g

Question 3

The heart is located in the ___ between two pleural cavities that surroun the lungs

Answer 3

thoracic cavity

Question 4

midline partition

Answer 4

mediastinum

Question 5

cavity of the heart

Answer 5

Pericardial cavity

Question 6

main function of the heart

Answer 6

pump blood throughout the body

Question 7

Beats approx. ___ times daily carrying ___L of
blood.

Answer 7

100,000;8000L

Question 8

Covering of the Heart

Answer 8

The
Pericardium

Question 9

A sac consisting of
fibrous and serous
pericardia.

Answer 9

Pericadium

Question 10

Pericardium 2 layers:

Answer 10

• Fibrous Pericardium
• Serous Pericardium
  +Parietal
  +Visceral

Question 11

Heart wall (3)

Answer 11

1.Epicardium
2.myocardium
3.endocardium

Question 12

• Outermost layer of the heart

Answer 12

Epicardium

Question 13

• Composed of simple squamous epithelium and an areolar
  connective tissue(deep area)

Answer 13

Epicardium and Endocardium

Question 14

Responsible for the overall contraction of heart necessary to
pump blood

Answer 14

Myocardium

Question 15

Composed of cardiac muscle tissue.

Answer 15

Myocardium

Question 16

Middle layer of the heart wall

Answer 16

Myocardium

Question 17

• Innermost layer of the heart
• Composed of simple squamous epithelium and an areolar
  connective tissue(deep area)

Answer 17

Endocardium

Question 18

The heart has four
chambers:

Answer 18

Superior Atria (2)
Inferior Ventricles (2)

Question 19

receives
the blood from the vein

Answer 19

Superior Atria (2)

Question 20

pump blood away from the
heart from the atria

Answer 20

Inferior Ventricles

Question 21

Internal Partitions (2)

Answer 21

Interatrial Septum
Interventricular Septum

Question 22

separates the atrial
chambers

Answer 22

Interatrial Septum

Question 23

separates the ventricular
chambers

Answer 23

Interventricular Septum

Question 24

separate the atria from the
ventricles

Answer 24

Coronary Sulcus

Question 25

from coronary sulcus to anterior surface of the heart

Answer 25

Anterior Interventricular Sulcus

Question 26

from coronary sulcus to posterior surface of the heart

Answer 26

Posterior Interventricular Sulcus

Question 27

Veins that carry blood to the heart (4)

Answer 27

1. Superior Vena Cava 2. Inferior Vena Cava 3. Coronary Sinus 4. Four Pulmonary Veins

Question 28

Arteries that carry blood away from the heart (3)

Answer 28

1. Pulmonary Trunk 2. Aorta 3. Pulmonary Arteries

Question 29

Heart Valves (2)

Answer 29

* Atrioventricular Valves (AV Valves) * Semilunar Valves

Question 30

Prevent backflow into the **atria**

Answer 30

atrioventricular valves

Question 31

2 types of AV Valves

Answer 31

* Tricuspid valve * Bicuspid/mitral valve

Question 32

AV valve located between the right atrium and the right ventricle

Answer 32

tricuspid valve

Question 33

AV valve between the left atrium and left ventricle

Answer 33

bicuspid/mitral valve

Question 34

Each ventricle contains cone-shaped, muscular pillars called ”___” and attached to a connective tissue strings called “____.”

Answer 34

papillary muscles; chordae tendineae

Question 35

Prevent backflow associated into the **ventricles**

Answer 35

Semilunar Valves

Question 36

The aorta and pulmonary trunk possess

Answer 36

aortic and pulmonary semilunar valves.

Question 37

A plate of connective tissue, sometimes called the “________” surrounds the valves and give them solid support.

Answer 37

cardiac skeleton

Question 38

Two coronary arteries supply blood to the wall of the heart:

Answer 38

Left Coronary Artery Right Coronary Artery

Question 39

originates on the left side of the aorta.

Answer 39

Left Coronary Artery

Question 40

two major branches of Left Coronary Artery

Answer 40

1. Anterior interventricular artery 2. Circumflex artery

Question 41

originates on the right side of the aorta. It has two major branches:

Answer 41

Right Coronary Artery

Question 42

2 major branches of the Right Coronary Artery

Answer 42

1. Posterior interventricular artery 2. Right marginal artery

Question 43

# coronary circulation The ________ drain blood from the ________ and most of them drain blood into the _______.

Answer 43

cardiac veins, cardiac muscle, coronary sinus

Question 44

coronary sinus. This sinus has three (3) attributes:

Answer 44

1. Great Cardiac Vein 2. Middle Cardiac Vein 3. Small Cardiac Vein