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unit 4 HSC REVISON HIR

Total questions: 38

Worksheet time: 23mins

Name
Class
Date
1.

The pupil is the black part of the eye?

a)

True

b)

Fasle

2.
What is this?
a)
Choroid
b)
Lens
c)
Sclera
d)
Ciliary Body
3.
What is this?
a)
Lens
b)
Pupil
c)
Iris
d)
Cornea
4.
What is this?
a)
Cornea
b)
Choroid
c)
Cones
d)
Lens
5.

black circle, allows light to enter the eye

a)

iris

b)

pupil

c)

optic nerve

d)

retina

6.

carries messages from the eye to the brain

a)

lens

b)

vitreous humor

c)

retina

d)

optic nerve

7.

gel substance that gives the eye shape

a)

optic nerve

b)

iris

c)

vitreous humor

d)

retina

8.
When you enter a dark room, what does the pupil do
a)
get larger
b)
get smaller
9.
This part protects the eye, especially the iris, pupil and lens.
a)
rods
b)
cornea
c)
optic nerve
d)
retina
10.

It forms an upside-down image.

a)

iris

b)

retina

c)

pupil

11.

It changes light into signals or messages.

a)

iris

b)

retina

c)

pupil

12.

Which chamber of the heart is represented by number 3 in the diagram?

a)

Right Atrium

b)

Left Atrium

c)

Right Ventricle

d)

Left Ventricle

13.

The blood vessel leaving the left ventricle is the

(a)  

14.

Which stage of the cardiac cycle follows atrial diastole?

(a)  

15.

What is the circuit that carries blood to the tissues and returns to the heart?

a)

Pulmonary

b)

Systemic

16.

Select which blood vessels transport oxygen poor blood.

a)

Vena Cava

b)

Aorta

c)

Pulmonary Artery

d)

Veins

e)

Arterioles

17.

What is the name of the valve at number 8?

a)

Tricuspid

b)

Bicuspid

c)

Pulmonary

d)

Aortic

18.

During the process of cellular respiration in tissues what would the partial pressure of oxygen be?

a)

40

b)

100

c)

46

d)

104

19.

Which of the following would increase in the muscle cell during exercise?

a)

pH

b)

Temperature

c)

PCO2

d)

PO2

e)

acidity

20.

The purkinje fibres would be responsible for which stage of the cardiac cycle?

a)

Ventricular diastole

b)

Atrial systole

c)

Atrial diastole

d)

Ventricular systole

21.
I protect the lungs and heart
a)
The ribs
b)
The alveoli
c)
The larynx
d)
The intercostal muscles
22.
I produce sound
a)
The alveoli
b)
The trachea
c)
The larynx
d)
The cartilage rings
23.
I carry air down to the lungs
a)
The trachea
b)
The ribs
c)
The pleural cavity
d)
The alveoli
24.
I help to keep the trachea and bronchi open
a)
The cartilage rings
b)
The larynx
c)
The ribs
d)
The diaphragm
25.
I warm. moisten and filter the air we breathe
a)
The nasal cavity
b)
The diaphragm
c)
The alveoli
d)
The ribs
26.
I prevent friction between the lungs and ribs when breathing
a)
The pleural fluid
b)
The nasal cavity
c)
The ribs
d)
The diaphragm
27.
The intercostal muscles do what when we breathe in?
a)
Contract
b)
Relax
28.
When we breathe in what does the chest do?
a)
Increase in volume
b)
Decrease in volume
29.
When we breathe in what does the diaphragm do?
a)
Contracts/flattens/chest gets larger
b)
Relaxes/bulges upwards/decreases the volume even more
30.
When we breathe out what do the intercostal muscles do?
a)
Contract/Pull rib cage upwards, chest increases in volume.
b)
Relax/lowers the rib/chest decreases in volume
31.
What percentage of oxygen do we breathe in?
a)
21%
b)
30%
c)
10%
d)
16%
32.
What percentage of carbon dioxide is breathed out when air changes in your lungs?
a)
16%
b)
4%
c)
21%
d)
0.04%
33.
When we breathe in what happens to the pressure of the respiratory system?
a)
Decreases
b)
Increases
34.
I exchange gases across a respiratory surface. For example oxygen is taken into the body, and carbon dioxide is removed from it.
a)
Respiration
b)
Gaseous Exchange
c)
Breathing
35.
I am a chemical reaction which happens in all living cells, in which food is broken down to release energy, usually by combining it with oxygen.
a)
Gaseous Exchange
b)
Respiration
c)
Breathing
36.
Which is not a malfunction of the respiratory system?
a)
Asthma
b)
Hypertension
c)
Cystic Fibrosis
d)
Emphysema
37.
How can asthma be treated?
a)
Angiogram
b)
Inhaler
c)
Ultrasound
d)
Biopsy
38.
What is NOT a trigger of asthma?
a)
Pollen
b)
Warm air
c)
Stress
d)
Cold air

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