Circulation And Cardiovascular System

Question 1

To transport blood,
oxygen and nutrients to
the body

Answer 1

Human Circulatory System

Question 2

Three main parts of circulatory system

Answer 2

Heart, blood vessels, and blood

Question 3

It works as a pump to move the
blood around the body.

Answer 3

Heart

Question 4

four chambers of heart

Answer 4

two atria
(upper chambers) and two
ventricles (lower chambers)

Question 5

1. Chamber of heart that takes in blood
   carrying carbon dioxide

Answer 5

Right atrium

Question 6

2. Blood is squeezed down into the _______ and taken to the
   lungs, where oxygen replaces
   carbon dioxide

Answer 6

right ventricle

Question 7

3. Oxygen-carrying blood
   from the lungs enters the ______

Answer 7

left atrium

Question 8

4. Blood is pumped into the _______ and starts
   its journey again
   throughout the body

Answer 8

left ventricle

Question 9

It is a special fluid primarily
contained within the blood vessels

Answer 9

Blood

Question 10

four main components of blood

Answer 10

red
blood cells, white blood cells,
platelets and plasma.

Question 11

carry oxygen,
nutrients and wastes

Answer 11

Red blood cells

Question 12

fight diseases and
protect the body
from infection

Answer 12

White blood cells

Question 13

gather at the site
of injury and help
the clotting process

Answer 13

Platelets

Question 14

straw-coloured
liquid where the
other components
float in

Answer 14

Plasma

Question 15

Blood is divided into its
components, with the heaviest
parts at the bottom

Answer 15

plasma
white blood cells
and platelets
red blood cells

Question 16

These are tubes or channels that
carry blood throughout our body

Answer 16

Blood vessels

Question 17

three types of blood
vessels

Answer 17

veins, arteries and
capillaries

Question 18

It has the thickest wall of all three, allowing it to
withstand the high pressure created by the heart.

Answer 18

Artery

Question 19

It has the thinnest wall to allow substances such as
oxygen and sugars to pass through its wall—into or
out of the blood.

Answer 19

Capillary

Question 20

It is less muscular and stretchy than an artery, so
blood moves through it with low pressure. It also has a
special valve that helps blood go only one way.

Answer 20

Vein

Question 21

Carries blood away
from the heart

Answer 21

Artery

Question 22

Assists in the exchange
of substances between
the blood and tissues

Answer 22

Capillary

Question 23

Carries blood back
towards the heart

Answer 23

Vein

Question 24

is an inherited blood
disorder. People with this have red blood cells
that become hard and sticky, forming a C-
shaped blood cell instead of the healthy disc-
shaped one

Answer 24

Sickle cell disease (SCD)

Question 25

The heart weighs about _____ grams and beats around ______ times a day

Answer 25

250-350 grams 100,000

Question 26

THE STRUCTURE OF THE HEART

Answer 26

Fibrous Pericardium Parietal Pericardium Serous Fluid Visceral Pericardium

Question 27

LAYERS OF THE HEART

Answer 27

Epicardium Myocardium Endocardium

Question 28

THE HEART VENTRICLES

Answer 28

Superior Atria Inferior Ventricle Septum

Question 29

The receiving chambers

Answer 29

Atria

Question 30

The discharging chamber

Answer 30

Ventricle

Question 31

is the portion of the cardiovascular system responsible for transporting oxygen-depleted blood

Answer 31

PULMONARY CIRCULATION

Question 32

They occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body

Answer 32

SYSTOLE & DIASTOLE

Question 33

occurs when the heart contracts to pump blood out

Answer 33

Systole

Question 34

occurs when the heart relaxes after contraction

Answer 34

diastole

Question 35

Systolic Blood Pressure to peak pressure , produced by the contracting ventricles (BP)

Answer 35

120

Question 36

Diastolic Blood Pressure the pressure in your arteries when the ventricles are relaxed (BP)

Answer 36

80

Question 37

can damaged arterial walls, mess with your circulation and ultimately endanger your heart, lungs, brain, kidneys, and nearly part of you.

Answer 37

Prolonged high blood pressure

Question 38

when the heart stops beating suddenly. The lack of blood flow to the brain and other organs can cause a person to lose consciousness

Answer 38

Cardiac arrest

Question 39

is an emergency procedure performed on people who are in cardiac arrest or have stopped breathing.

Answer 39

CPR, or cardiopulmonary resuscitation

Question 40

is a medical device used to deliver an electric shock to the heart to restore normal rhythm in cases of cardiac arrhythmias,

Answer 40

defibrillator

Question 41

chock full of capillaries, to serve up a constant supply of oxygen

Answer 41

Endomysium

Question 42

Cardiac muscle cell contains a large number of _____ which are tiny structure responsible for producing energy

Answer 42

Mitochondria

Question 43

Both structurally and functionally separate from one another, meaning some cells can work while other cells can't

Answer 43

SKELETAL MUSCLE TISSUE

Question 44

Both physically and electrically connected, all of the time

Answer 44

CARDIAC MUSCLE TISSUE

Question 45

Keep your heart beating at the correct rhythm

Answer 45

Pacemaker cells

Question 46

comprised of several specialized subpopulations of cells that either spontaneously generate electrical activity

Answer 46

The intrinsic conduction system