Heart

Question 1

3 layers of tissue composed of heart?

Answer 1

Pericardium
Myocardium
Endocardium

Question 2

What is pericardium?

Answer 2

Two sacs
Outer sac consists of fibrous tissue

Inner sac is a double serous membrane allowing smooth movement between layers

Question 3

What is myocardium?

Answer 3

Composed of specialised cardiac muscle

Question 4

What is endocardium?

Answer 4

Flattened epithelial cells
Lines chambers and valves of heart

Question 5

The heart is Divided into right and left side by …

Answer 5

Septum

Question 6

What is each side divided into upper chamber and lower ventricle by?

Answer 6

Atrioventricular valves

Question 7

How many valves does the left and right side have?

Answer 7

Right has 3 semilunar cusps
And the left has 2

Question 8

What do valves do?

Answer 8

Ensure blood flow is going in one direction preventing the back flow of blood

Question 9

What is the function of the heart

Answer 9

To maintain constant circulation of blood throughout body

Question 10

What is each heartbeat known as

Answer 10

Cardiac cycle

Question 11

Contraction is known as

Answer 11

Systole

Question 12

Relaxed state is known as

Answer 12

Diastole

Question 13

What cavity does the heart lie in?

Answer 13

Thoracic cavity

Question 14

Describe the shape of the heart and how it lies in the thoracic cavity?

Answer 14

Has a base and an apex
Lies obliquely

Question 15

Name the 8 associated organs and tissues with the heart?

Answer 15

Diaphragm
Oesophagus
Trachea
Left bronchus
Right bronchus
Vertebrae
Ribs
Intercostal muscles

Question 16

What are the 2 largest veins ?

Answer 16

Superior and inferior vena cava

Question 17

What does the superior and inferior vena cava vein empty into the right atrium?

Answer 17

Deoxygenated blood

Question 18

What causes the atrioventricular valves to open and shut in the heart?

Answer 18

Changes in blood pressure

Question 19

What is the only artery that carries deoxygenated blood?

Answer 19

Pulmonary artery

Question 20

What valve guards the pulmonary artery?

Answer 20

Pulmonary valve

Question 21

What valve guards the aorta?

Answer 21

Aortic valve

Question 22

What is the term for the passing of blood from the right side to the left via the lungs?

Answer 22

Pulmonary circulation

Question 23

Every heart beat is known as a what?

Answer 23

Cardiac cycle

Question 24

In every heartbeat the heart contracts then relaxes this is known as what

Answer 24

Contraction - systole
Relax- diastole

Question 25

What is the range of a cardiac cycle (Heart beat)?

Answer 25

60-80 beats per min

Question 26

How long on average does a cardiac cycle last for?

Answer 26

0.8 seconds

Question 27

What is meant by atrial systole?

Answer 27

Contraction of the atria

Question 28

What is meant by ventricular systole?

Answer 28

Contraction of ventricles

Question 29

What is meant by complete cardiac diastole?

Answer 29

Relaxation of atria and ventricles

Question 30

What are the 3 types of circulation in the body?

Answer 30

Pulmonary Systemic Portal

Question 31

What valve is between the right atrium and ventricle

Answer 31

Tricuspid valve

Question 32

What valve is between the left atrium and ventricle

Answer 32

Bicuspid valve

Question 33

The right side of the heart carries ………… blood and the left side carries …………. Blood

Answer 33

Right - deoxygenated Left - oxygenated

Question 34

appropriate number of heart beats per minute?

Answer 34

72

Question 35

name the valve which blood passes from one of the right chambers to the other right chamber?

Answer 35

tricuspid valve

Question 36

name the valve which blood passes from one left chamber to another left chamber?

Answer 36

bicuspid valve

Question 37

name the valve which blood passes from the heart to the arterial system of the body

Answer 37

aortic valve