Blood 🩸 and circulatory system

Question 1

Name period of heart when cardiac muscle is contracting

Answer 1

Syastole

Question 2

Name period of heart when cardiac muscle is not contracting

Answer 2

Diastole

Question 3

Location of sinoatrial node (SA node) in heart

Answer 3

Wall of right atrium

Question 4

Name circuit to which the right ventricle pumps blood

Answer 4

Pulmonary circuit

Question 5

Name circuit to which the left ventricle pumps blood

Answer 5

Systemic circuit

Question 6

What cause he audible sounds of the heartbeat

Answer 6

Valves closing

Question 7

Function of the cardiac artery

Answer 7

Supply cardiac muscles with blood

Question 8

Describe effect of circulatory system after exercise

Answer 8

Increase heart rate, or,
Strengthens heart muscle

Question 9

Why is blood on the right side kept separate from the blood on the left

Answer 9

Prevents oxygenated and deoxygenated blood from mixing

Question 10

What is meant by term diastole

Answer 10

Relaxing

Question 11

Word used to describe faces of red blood cells

Answer 11

Biconcave

Question 12

What feature of red blood cells allows them to pass through the narrow capillaries

Answer 12

Flexible

Question 13

Molecule in red blood cells that carries oxygen

Answer 13

Haemoglobin

Question 14

Based on the composition if human red blood cells, why do they live for about 120 days

Answer 14

No nucleus,
Cannot reproduce,
No mitochondria

Question 15

Where red blood cells are produced

Answer 15

Bone marrow

Question 16

Where red blood cells are usually broken down

Answer 16

Liver

Question 17

Name transport fluid in humans that does not contain red blood cells

Answer 17

Lymph

Question 18

Five substances transported in the blood

Answer 18

Food molecules,
Water,
Urea,
Hormones,
Oxygen

Question 19

Role of sinoatrial node (SA Node)

Answer 19

Controls heart rate

Question 20

Location and role of atrioventricular

Answer 20

In septum between left and right ventricle,
Sends electrical impulses

Question 21

What is measured when a persons blood pressure is taken

Answer 21

Systolic and diastolic pressures

Question 22

What is a pulse

Answer 22

The rhythmic stretching of an artery

Question 23

Why measure pulse at wrist, temple or neck

Answer 23

Artery near the surface

Question 24

Vein that transports blood out of the muscle of the heart

Answer 24

Cardiac vein

Question 25

Vein that brings blood away from the kidneys

Answer 25

Renal artery

Question 26

Veins that carries little carbon dioxide

Answer 26

Pulmonary vein

Question 27

Vein that has capillaries at both ends

Answer 27

Hepatic portal vein

Question 28

Vein that brings blood into the right atrium

Answer 28

Vena cava

Question 29

How is blood moved through veins

Answer 29

Muscles squeezing, Valves prevent backflow

Question 30

Four functions of lymphatic system

Answer 30

Fights infection, Filtering bacteria, Transports fats, Transports hormones

Question 31

Three ways lymph differ from blood

Answer 31

No red blood cells, No clotting proteins, No platelets

Question 32

Structure found in cells in which carbon dioxide is produced

Answer 32

Mitochondrion

Question 33

Feature of capillary which allows the rapid intake of carbon dioxide

Answer 33

Thin wall

Question 34

Why are carbon dioxide levels usually higher in venous blood than in arterial blood

Answer 34

Venous blood collected CO2, Arterial blood has been cleared of CO2

Question 35

Outline role of carbon dioxide in the control of the human breathing rate

Answer 35

Medulla oblongata registers high CO2 levels in blood, More C02 results in faster breathing

Question 36

Group of white blood cells other than lymphocytes

Answer 36

Monocytes

Question 37

Role of antibodies in the body

Answer 37

to inactivate antigens

Question 38

Name four types of T cell

Answer 38

Helper, killer, suppressor, memory

Question 39

Role of helper T cells

Answer 39

Activate killer cell

Question 40

Role of Killer T cell

Answer 40

Attack infected cells

Question 41

Role of suppressor T Cells

Answer 41

Stop immune responses

Question 42

Role of Memory T cells

Answer 42

To remember antigens

Question 43

Cavity of the body in which the heart and lungs are located

Answer 43

Chest cavity

Question 44

One way heart muscle differs from other muscles in the body

Answer 44

Doesn’t tire

Question 45

How is lymph circulated

Answer 45

Muscles squeeze lymph ducts, Valves prevent back flow

Question 46

Describe Transport function of the lymphatic system

Answer 46

Transports fats, Transports antibodies

Question 47

Describe defensive function of the lymphatic system

Answer 47

Produces antibodies, Lymph node filters

Question 48

Explain the term contractile

Answer 48

it can shorten or contract

Question 49

Which chamber of the heart has the greatest amount of muscles in its wall

Answer 49

Left ventricle

Question 50

Explain term plasma

Answer 50

Liquid part of blood

Question 51

Explain term glomerular filtrate

Answer 51

Plasma less proteins

Question 52

Describe structure of lymphatic system

Answer 52

Lymph nodes/vessels

Question 53

How is oxygen transported

Answer 53

By oxygen