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Circulatory system

Total questions: 39

Worksheet time: 22mins

Name
Class
Date
1.

The three main parts of the circulatory system

a)

Heart

b)

Blood

c)

Lungs

d)

Blood vessels

2.

The functions of the circulatory system are

a)

Transport

b)

Heat

c)

Body movement

d)

Protection against infection

3.

What is carried by the blood, that is a requirement for cellular respiration

a)

Oxygen

b)

Carbon dioxide

c)

Hormones

4.

What does the blood carry

a)

Hormones

b)

Nutrients

c)

Oxygen

5.

What is the role of the white blood cells

a)

Carry oxygen

b)

Fight infection

c)

Blood clothing

6.

What is the role of the platelets

a)

Blood clothing

b)

Fight infection

c)

Carry oxygen

7.

The Liquid part of the blood is called the

(a)  

8.

How many blood cells die every minute

a)

4 million

b)

1 thousand

c)

2 million

d)

10

9.

The blood, the heart and the blood vessels make up what

a)

The Circulatory system

b)

The Respiratory system

c)

The Endocrine system

10.

The role of the red blood cells is

a)

Fight infection

b)

Carry oxygen

11.

What waste gas does blood pick up from the body cells and transport to the lungs

a)

oxygen

b)

carbon dioxide

12.

What blood vessel brings deoxygenated blood back to the heart

a)

Vena Cava

b)
coronary artery
c)
pulmonary artery
d)
aorta
13.

Veins mainly carry deoxygenated blood

a)

True

b)

False

14.

Which side of the heart is firmer

a)
Left side
b)
Right side
c)
Bottom side
d)
Top side
15.

What separates both sides of the heart

a)
Septum
b)
Ventricle
c)
Muscle
d)
Valve
16.

What type of muscle is the heart made from

a)
Cardiac muscle
b)
Skeletal muscle
c)
Smooth muscle
d)
Striated muscle
17.

What piece of equipment can be used to dissection a heart

a)
hammer
b)
screwdriver
c)
pliers
d)
scalpel
18.

The front of the heart is called

a)
anterior surface
b)
ventral side
c)
dorsal side
d)
posterior surface
19.

Diastole is when the heart is

a)
contracting and pushing blood out
b)
resting and not doing anything
c)
pumping blood to the lungs
d)
relaxed and filling with blood
20.

Systole is when the heart is

a)
skipping a beat
b)
expanding and contracting
c)
relaxing and filling with blood
d)
contracting and pumping blood out of the chambers
21.

The pacemaker is also known as the

a)
cardiac node
b)
ventricular node
c)
sinoatrial node
d)
atrioventricular node
22.

The pacemaker is located where in the heart

a)

In the wall of the left ventricle

b)

In the upper wall of the right atrium

c)

In the septum

d)

In the wall of the left atrium

23.

The AV note is located

a)

Left Ventricle

b)

Septum

c)

Base of right atrium

d)

Base of left atrium

24.

Smallest type of artery is called

a)
Venule
b)
Capillary
c)
Vein
d)
Arteriole
25.

The function of a venule is to

a)
Regulate blood pressure
b)
Absorb nutrients from the intestines
c)
Collect blood from capillaries and transport it to larger veins.
d)
Produce red blood cells
26.

How are capillaries adapted to their function

a)
Thick walls, small surface area, fast blood flow
b)
Rigid walls, small surface area, slow blood flow
c)
Thin walls, small surface area, fast blood flow
d)
Thin walls, large surface area, slow blood flow
27.

Blood pressure is measured using a

a)
stethoscope
b)
sphygmomanometer
c)
thermometer
d)
scale
28.

Heart beat is controlled by which part of the heart

a)
ventricles
b)
pulmonary artery
c)
aorta
d)
sinoatrial (SA) node
29.

What is the function of the SA node (pacemaker)

a)
Regulates blood pressure
b)
Controls digestion
c)
Manages body temperature
d)
Initiates the electrical impulses regulating the heart's rhythm
30.

Which blood vessel type has smallest lumens

a)
Lymphatic vessels
b)
Capillaries
c)
Arteries
d)
Veins
31.

A closed circulatory system means

a)
Blood is contained within vessels and does not directly come into contact with the body's cells and tissues.
b)
The circulatory system is open to the external environment
c)
The heart is not involved in pumping blood
d)
Blood flows freely in the body without any containment
32.

An open circulatory system means

a)
Blood flows in a closed loop
b)
Blood is only found in the heart
c)
Blood is blue in color
d)
Blood is not enclosed in vessels
33.

Which chamber of the heart receives oxygenated blood from the lungs?

a)

Right atrium

b)

Left atrium

c)

Right ventricle

d)

Left ventricle

34.

What is the main function of platelets in the blood?

a)

Transport oxygen

b)

Fight infection

c)

Help blood clot

d)

Regulate blood pressure

35.

Which blood vessel carries oxygenated blood away from the heart to the body?

a)

Aorta

b)

Coronary artery

c)

Vena cava

d)

Pulmonary vein

36.

What artery supplies oxygenated blood to the heart

a)
Coronary arteries
b)
Pulmonary arteries
c)
Aorta
d)
Carotid arteries
37.

Which component of blood is responsible for fighting infections?

a)

Plasma

b)

Platelets

c)

White blood cells

d)

Red blood cells

38.

What is the main function of the valves in the heart?

a)

To regulate blood pressure

b)

To prevent backflow of blood

c)

To supply oxygen to the heart muscle

d)

To produce blood cells

39.

Which blood vessel carries blood from the heart to the lungs?

a)

Vena cava

b)

Aorta

c)

Coronary artery

d)

Pulmonary artery