Unit 4 - Eye and respiratory

Match the following eye structures with their functions:

• fovea

• Keeps the cornea moist

• optic nerve

• Where nearly all of your colour cells are, gives the best quality vision

• cornea

• Transparent to let light in to the eye

• conjunctiva

• Sends information from the retina to your brain

• retina

• Where the light detecting cells are found

Identify the eye structure for label no. 7

a

macula

retina

Optic nerve

It controls accommodation for viewing objects at varying distances 

• pupil

• suspensory ligament

• lens

• Ciliary muscle

Label the diagram of the eye

a

b

c

d

Pupil

Cornea

Lens

Iris

Match the following eye disorders with the correct definition:

• Retinopathy

• condition that affects the middle part of your vision. It affects the retina layer of the eye.

• Cataracts

• a common eye condition where the optic nerve becomes damaged due to build-up of pressure by fluid in the eye.

• Glaucoma

• Blood vessels in the retina become bulged or leaking, damaging the retina

• Age-related macular disease

• when the lens, a small transparent disc inside your eye, develops cloudy patches.

Match the following eye conditions with the correct treatments:

• Retinopathy

• Good control of blood glucose levels

  • Laser eye surgery

  • Removal of scar tissue in the retina

• Glaucoma

• • surgery involves replacing the cloudy lens inside your eye with an artificial one.

• AMD

• • Daily drops in the eyes is the most common treatment. 

  • Laser treatment to open up blocked drainage tubes or reduce the fluid production in the eye.  

  • Surgery to improve the drainage of fluid.

• Cataracts

• Lifestyle changes

  Regular eye injections directly into the eyes.

  "photodynamic therapy"

Reorder the following sequence of how we see.

• The pupil changes size according to how much light is present

• Light enters the eye through the cornea

• The retina turns light into signals about images that the brain can understand.

• The nerves of the retina collect the electrical impulses, which travel through the optic nerve to the occipital lobe in the back of the brain.

Identify the parts of the respiratory system labeled in the diagram.

a

b

c

d

e

f

g

h

Lungs

Diaphragm

Pharynx

Nasal cavity

Larynx

Bronchi

Alveoli

Trachea

Match the following respiratory structures to the correct functions

• Alveoli

• • muscle anchored to the Lower Ribs that separates the Chest from the Abdomen.

• Larynx

• a

  At the end of the tiniest Bronchioles, surrounded by a capillary network where oxygen and carbon dioxide are exchanged

• Diaphragm

• connects the back of the nose and the trachea, forming an air passage to the lungs. This is where your voice box is

• Epiglottis

• known as the ‘windpipe’. It starts at the back of the throat

• Trachea

• separates your trachea from your oesophagus and stops you breathing in food and drink

• Cover outside of the lungs and line the inside of the Chest wall.

•  It consist of two layers of thin membrane. 

They are moist and slippery, having a thin film of liquid between the two layers, allowing the lungs to move easily within the Chest cavity. Select the correct structure:

• Bronchiole

• Pleural membrane

• Intercostal muscles

• Alveoli