The Heart and blood

Question 1

What is the purpose of the septum

Answer 1

To separate deoxygenated and oxygenated blood.

Question 2

2 benefits of a double circulation system

Answer 2

Keeps oxygenated and deoxygenated blood separated

Keeps blood pressure high enough to reach all of body

Question 3

What is a portal system

Answer 3

Vessels do not connect directly to heart

Question 4

What does the hepatic portal vein connect

Answer 4

Stomach and intestines to liver

Question 5

What supplies blood to heart muscle

Answer 5

Coronary arteries

Question 6

What can the brain control about the heartbeat

Answer 6

Speed

Question 7

What state are the atria and ventricles in at stage 1

Answer 7

Diastole

Question 8

Are valves open or closed in Stage 1

Answer 8

Closed

Question 9

What state are the atria in at stage 2

Answer 9

Atrial systole

Question 10

What valves are open/ closed in stage 2

Answer 10

Tri and bicuspids open

Semilunars closed

Question 11

What state are the atria in at stage 3

Answer 11

Diastole

Question 12

What state are the ventricles in at stage 3

Answer 12

Ventricular systole

Question 13

Are the semilunars open or closed in stage 3

Answer 13

Open

Question 14

Are the bi and tri cuspid valves open or closed in stage 3

Answer 14

Closed

Question 15

Average heat rate and range

Answer 15

72bpm

60-100bpm

Question 16

What is blood pressure measuring

Answer 16

Pressure needed to stop the blood in an artery.

Question 17

Higher value when taking blood pressure

Answer 17

Systolic pressure

Question 18

Lower value in blood pressure

Answer 18

Diastolic pressure

Question 19

Typical blood pressure for a young adult

Answer 19

120/80 mm Of Mercury

Question 20

How many harmful chemicals in tobacco? Name two

Answer 20

400. Nicotine and carbon monoxide

Question 21

What does smoking increase the risk of

Answer 21

Increased heart rate and blood pressure, likelihood of blood clots in vessels and lung ailments

Question 22

Name three things that affect the health of the circulatory system and heart

Answer 22

Smoking, diet and exercise

Question 23

What does the over consummation of fats increase the risk of

Answer 23

Forming blockages in arteries ( especially leading to heart and and brain), possibly causing heart attacks and strokes

Question 24

What can too much salt cause

Answer 24

High blood pressure

Question 25

What does obesity cause

Answer 25

High blood pressure and heart attacks

Question 26

What is the inner layer of arteries and veins called

Answer 26

Endothelium

Question 27

What is the outer layer of veins and arteries called

Answer 27

Collagen

Question 28

What is the middle layer of veins and arteries made of? Which vessel has a thicker layer

Answer 28

Muscle and elastic fibre, artery

Question 29

Open circulatory system

Answer 29

Blood leaves blood vessels and flows around the cells of the animal before re entering blood vessels again

Question 30

Closed circulatory system

Answer 30

Blood remains in a continuous system of blood vessels

Question 31

Blood pressure

Answer 31

The force the blood exerts against the wall of a blood vessel

Question 32

Valves

Answer 32

Control the direction of the blood flow

Question 33

Portal system

Answer 33

Blood pathway that begins and ends in capillaries

Question 34

Diastole

Answer 34

When the heart chambers relax

Question 35

Systole

Answer 35

When the heart chambers contract

Question 36

Pulse

Answer 36

The alternate expansion and contraction of the arteries

Question 37

Plasma

Answer 37

Liquid part of blood

Question 38

Serum

Answer 38

Plasma from which the clotting proteins have been removed