Circulatory System

Question 1

The ______ is composed of four chambers of the heart divided into right and left atrial chambers and right and left ventricular chambers.

Answer 1

cardiovascular system

Question 2

The right side of the heart, containing the ________, comprises the ______ delivering blood to the lungs for oxygenation and release of carbon dioxide.

Answer 2

right atrium and right ventricle
pulmonary circuit

Question 3

The oxygenated blood is returned To the _____ of the heart and is pumped out of the _____ to be distributed to the tissues of the body

Answer 3

left side
left ventricle

Question 4

to deliver oxygenated blood to cells and tissues

Answer 4

cardiovascular system

Question 5

to return venous blood to the lungs for gaseous exchange.

Answer 5

cardiovascular system

Question 6

transports oxygen and nutrients to the tissues

Answer 6

cardiovascular system

Question 7

Carries away CO2 and waste products from the tissues

Answer 7

cardiovascular system

Question 8

Circulates hormones from their site of synthesis to their target cells

Answer 8

cardiovascular system

Question 9

Regulates body temperature

Answer 9

cardiovascular system

Question 10

cardiovascular system includes:

Answer 10

I. Blood Vascular System
II. Lymphatic Vascular System

Question 11

Blood Vascular System:

Answer 11

1. Heart
2. Arteries
3. Veins
4. Capillaries

Question 12

Lymphatic Vascular System:

Answer 12

1. Lymphatic Capillaries
2. Lymphatic Vessels
3. Lymphatic Ducts

Question 13

is a muscular pump that propels blood at high pressure around the body through the blood vessels.

Answer 13

HEART

Question 14

The heart is surrounded by a fibro-serous sac called

Answer 14

pericardium

Question 15

heart is a 4-chambered muscular organ containing:

Answer 15

2 atria
2 ventricles

Question 16

receives the blood

Answer 16

2 Atria

Question 17

pumps the blood to the lungs or tissues

Answer 17

2 Ventricles

Question 18

COMPONENTS OF THE HEART

Answer 18

1. Cardiac Layers (tunicae)
2. Fibrous Skeleton
3. Heart Valves
4. Impulses generating and impulse conducting system

Question 19

Cardiac Layers (tunicae):

Answer 19

a. Endocardium (tunica intima)
b. Myocardium (tunica media)
c. Epicardium (tunica adventitia)

Question 20

LAYERS OF THE HEART

Answer 20

A. ENDOCARDIUM (TUNICA INTIMA)
B. MYOCARDIUM (TUNICA MEDIA)
C. EPICARDIUM (TUNICA ADVENTITIA)

Question 21

lines the lumen of the heart

Answer 21

ENDOCARDIUM (TUNICA INTIMA)

Question 22

Composed of simple squamous epithelium (endothelium)

Answer 22

ENDOCARDIUM (TUNICA INTIMA)

Question 23

underlined by subendocardium

Answer 23

ENDOCARDIUM (TUNICA INTIMA)

Question 24

there is a small layer of loose connective tissue and some adipose tissue

Answer 24

ENDOCARDIUM (TUNICA INTIMA)

Question 25

consists of layers of cardiac muscles

Answer 25

MYOCARDIUM (TUNICA MEDIA)

Question 26

contracts to propel blood into the arteries for distribution to the tissues

Answer 26

MYOCARDIUM (TUNICA MEDIA)

Question 27

thickest layer of the heart

Answer 27

MYOCARDIUM (TUNICA MEDIA)

Question 28

outermost layer of the heart

Answer 28

EPICARDIUM (TUNICA ADVENTITIA)

Question 29

constitutes the visceral layer of the epithelium

Answer 29

EPICARDIUM (TUNICA ADVENTITIA)

Question 30

constitutes the visceral layer of the epithelium

Answer 30

EPICARDIUM (TUNICA ADVENTITIA)

Question 31

covered with simple squamous epithelium (mesothelium)

Answer 31

EPICARDIUM (TUNICA ADVENTITIA)

Question 32

central support of the heart

Answer 32

FIBROUS SKELETON (CARDIAC)

Question 33

thick bundles of collagen fibers oriented in various directions

Answer 33

FIBROUS SKELETON (CARDIAC)

Question 34

Components of Fibrous Skeleton (Cardiac)

Answer 34

- SEPTUM MEMBRANACEUM - TRIGONA FIBROSA - ANNULI FIBROSI

Question 35

composed of a skeleton of fibrous connective tissue

Answer 35

HEART VALVES

Question 36

allows blood to flow in only one direction through the chambers

Answer 36

HEART VALVES

Question 37

lined on both sides by the endothelium

Answer 37

HEART VALVES

Question 38

attached to the annuli fibrosi

Answer 38

HEART VALVE

Question 39

Heart valves includes:

Answer 39

a. ATRIOVENTRICULAR VALVE: - TRICUSPID - MITRAL b. AORTIC VALVE c. PULMONARY VALVE

Question 40

pacemaker

Answer 40

SINOATRIAL (SA) NODE

Question 41

generates impulses that initiate contraction of atrial muscle cells

Answer 41

SINOATRIAL (SA) NODE

Question 42

similar in structure to the SA node

Answer 42

ATRIOVENTRICULAR (AV) NODE

Question 43

can become the pacemaker in case of SA pathology

Answer 43

ATRIOVENTRICULAR (AV) NODE

Question 44

band of conducting tissue radiating from the AV node into the interventricular septum `where it divides into 2 branches

Answer 44

ATRIOVENTRICULAR BUNDLE OF HIS

Question 45

Large, modified cardiac muscle cells

Answer 45

PURJINKE FIBERS

Question 46

conducts oxygenated blood away from the heart to the capillaries

Answer 46

ARTERIES

Question 47

Types of Arteries:

Answer 47

A. ELASTIC ARTERIES (LARGE) B. DISTRIBUTING OR MUSCULAR (MEDIUM) C. ARTERIOLE (SMALL) D. METARTERIOLES

Question 48

Types of Arteries: also known as conducting arteries

Answer 48

ELASTIC ARTERIES (LARGE)

Question 49

Types of Arteries: receives blood directly from the heart

Answer 49

ELASTIC ARTERIES (LARGE)

Question 50

Example of elastic arteries

Answer 50

aorta and its major branches

Question 51

Types of Arteries: distribute blood to various organs

Answer 51

DISTRIBUTING OR MUSCULAR (MEDIUM)

Question 52

Example of Distributing or Muscular (Medium) of Arteries

Answer 52

named arteries of the human bod

Question 53

Types of Arteries: smallest arteries and regulates blood pressure

Answer 53

ARTERIOLE (SMALL)

Question 54

Types of Arteries: give rise to capillaries

Answer 54

METARTERIOLES

Question 55

Three basic layers of Metarterioles

Answer 55

Tunica Intima Tunica Media Tunica Adventitia

Question 56

Three Basic Layers of Metarterioles: innermost layer

Answer 56

Tunica Intima

Question 57

Three Basic Layers of Metarterioles: Simple Squamous (endothelium)

Answer 57

Tunica Intima

Question 58

Three Basic Layers of Metarterioles: Subendothelium

Answer 58

Tunica Intima

Question 59

Three Basic Layers of Metarterioles: Internal Elastic Cartilage

Answer 59

Tunica Intima

Question 60

Three Basic Layers of Metarterioles: smooth muscle

Answer 60

Tunica Media

Question 61

Three Basic Layers of Metarterioles: thickest coat

Answer 61

Tunica Media

Question 62

Three Basic Layers of Metarterioles: corresponds to myocardium of the heart

Answer 62

Tunica Media

Question 63

Three Basic Layers of Metarterioles: outermost layer

Answer 63

Tunica Adventitia

Question 64

Three Basic Layers of Metarterioles: simple squamous epithelium, basement membrane, connective tissue, blood vessels, and sometimes smooth muscle cell

Answer 64

Tunica Adventitia

Question 65

Three Basic Layers of Metarterioles: thinnest coat

Answer 65

Tunica Adventitia

Question 66

Three Basic Layers of Metarterioles: has external elastic membrane

Answer 66

Tunica Adventitia

Question 67

Three Basic Layers of Metarterioles: has vasa vasorum

Answer 67

Tunica Adventitia