Circulatory System

Question 1

Function of the circulatory system

Answer 1

Bring nutrients and oxygen to the cells and remove waste products

Question 2

The shade of blood can vary due to

Answer 2

The amount of oxygen your body has so the theory of your blood in the body is blue is false

Question 3

The shade of blood can vary due to

Answer 3

The amount of oxygen your blood has so the theory of your blood in the body is blue is false

Question 4

Veins and arteries are drawn in red or blue colors

Answer 4

To show the high and low level of contentration of oxygen

Question 5

Human blood has a lot of functions

Answer 5

Maintains pH, temperature and osmotic pressure, this is important for homeostasis, it transports things like hormones, nutrients and gases and is made up of different components. Like blood plasma, red blood cells, white blood cells and platelets.

Question 6

Main processes of the circulatory system

Answer 6

Circulates blood between the heart and the lungs as well as between the heart and the rest of the body.

Question 7

Main components in the circulatory system

Answer 7

The heart, blood vessels, arteries and blood.

Question 8

Where is the heart of a human found

Answer 8

Just above the diaphragm in the thoracic cavity between the two luna behind the breast bone. It is centrally located with its tip slightly to the left.

Question 9

Red blood cells

Answer 9

Have a iron-containing protein called hemoglobin and that’s where the red coloring if the blood comes from.
They are formed in the bone marrow
And their main function is to carry oxygen to all parts of the body.

Question 10

Blood plasma

Answer 10

Liquid part of the blood and mainly consists of water and transports nutr, waste products and dissolved gases into solution.
The three types of blood cell found in blood are red blood corpuscles, white blood corpuscles and platelets.

Question 11

White blood corpuscles

Answer 11

Larger than red blood corpuscles with an irregular shape and a clear nucleus and their main function is to destroy germs and defend the body against disease. (soldiers of the body)

Question 12

Platelets

Answer 12

Small fragments of cells that play a key role in blood clotting and are produced in the bone marrow.

Question 13

Blood vessels

Answer 13

Your heart pumps blood throughout the body via a network of ducts called blood vessels, three types of blood vessels :arteries, capillaries and veins.

Question 14

Arteries

Answer 14

Blood vessels that transport blood at high pressure away from the heart to all the different parts of the body contained in thick muscular abd elastic walls to withstand the high blood pressure.

Question 15

Veins

Answer 15

Transport blood at much lower pressure to the heart, their walls are thinner and less muscular than those of arteries, the valves in veins allow the blood to flow in one direction and prevents it from flowing back.

Question 16

Capillary blood vessels

Answer 16

In the organ the arteries branch into many small narrow ducts called capillaries. The walls of the capillary blood vessels are very thin therefore cells get into close contact with the blood.
Capillary blood vessels supply cells with oxygen and nutrients, and they remove waste products and carbon dioxide. They unite again to form veins.
They transport oxygen to the rest of the body and picks up carbon dioxide back to the lungs.

Question 17

Which parts of the heart pumps the deoxygenated blood and oxygenated blood

Answer 17

The right side(look like left from my view to people) pumps the deoxygenated blood and the left side pumps oxygenated blood

Question 18

Discuss the four chambers

Answer 18

The upper two chambers are called the atria(atrium=singular) receive blood from veins(thinner walls) entering the heart.
The two lower chambers(ventricles) pump blood into arteries to all parts of the body.

Question 19

Why does the left ventricle have a thick muscular wall

Answer 19

Because it pumps blood at high pressure over a long distance from the heart to all parts of the body except the lungs. The right ventricle has thinner musclar wall because it pumps blood at low pressure over a short distance from the heart to the lungs.

Question 20

Valves

Answer 20

The heart contains valves a one way structure that helps separate the chambers and also prevent backflow of blood.

Question 21

1)) Blood in the human toe which is deoxygenated blood needs to get to the heart to be bumped by the lungs to pick up oxygen and then

Answer 21

Be spread throughout the body

Question 22

2) the deoxygenated blood from the toe gets in through the

Answer 22

Inferior vena cava below the heart, the blood then enters the right atrium, the right atrium contracts pushing the blood through the tricuspid valve into the right ventricle.

Question 23

3)thr right ventricle contracts

Answer 23

Pumping the blood through the pulmonary valve to the pulmonary atery, the pulmonary artery takes blood to the lungs where red blood cells will take on oxygen and release carbon dioxide now the blood is oxygenated.

Question 24

4)it needs to return to the heart so that the heart can pump it to the rest of the body

Answer 24

The oxygenated blood travels through a pulmonary vein to the left atrium, the left atrium contracts and the blood travels through the mitral valve(buscupid valve) into the left ventricle

Question 25

5.the left ventricle contracts

Answer 25

And pumps the valve through the aortic valve and out a major artery known as the aorta that carries oxygenated blood throughout the body

Question 26

The heart needs it’s own blood supply to deliver oxygen and glucose

Answer 26

The heart receives the blood supply through coronary arteries that branch of the aorta and eventually deliver blood into capillaries that deliver oxygen and glucose to the heart

Question 27

7)The coronary veins will take the deoxygenated blood

Answer 27

To the right atrium where the blood will eventually travel the path to be oxygenated

Question 28

Septum

Answer 28

Muscular wall that Separates the right and left side of the heart.

Question 29

Health issues :High blood pressure

Answer 29

Also called hypertension refers to a constant high pressure of blood in the arteries and forces the hear to work harder and enlarge making it not pump blood efficiently and damage the artery walls.

Question 30

Factors of high blood pressure

Answer 30

Stress, cigarette smoking, being overweight and lack of exercise

Question 31

Heart attack

Answer 31

Occurs when narrowing or blood clot develops in one of the blood vessels that supply the heart muscle with blood.

Question 32

Stroke

Answer 32

Occurs when the Brian is deprived of oxygen due to the blockade in the blood vessels that leads to the brain and rupture.