Unit 4 - Eye and respiratory

Match the following eye structures with their functions:

• optic nerve

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

• fovea

• Keeps the cornea moist

• conjunctiva

• Sends information from the retina to your brain

• cornea

• Transparent to let light in to the eye

• retina

• Where the light detecting cells are found

Identify the eye structure for label no. 7

a

Optic nerve

retina

macula

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

Lens

Iris

Cornea

Match the following eye disorders with the correct definition:

• Glaucoma

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

• Retinopathy

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

• Cataracts

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

• Age-related macular disease

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

Match the following eye conditions with the correct treatments:

• Cataracts

• Lifestyle changes

  Regular eye injections directly into the eyes.

  "photodynamic therapy"

• Glaucoma

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

• Retinopathy

• Good control of blood glucose levels

  • Laser eye surgery

  • Removal of scar tissue in the retina

• 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.

Reorder the following sequence of how we see.

• Light enters the eye through the cornea

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

• 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

Pharynx

Bronchi

Trachea

Nasal cavity

Lungs

Alveoli

Diaphragm

Larynx

Match the following respiratory structures to the correct functions

• Trachea

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

• Alveoli

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

• Epiglottis

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

• Diaphragm

• a

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

• Larynx

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

• 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