Focus light onto the sclera

Focus light onto the ciliary body

Focus light onto the choroid

Focus light onto the retina

To change the shape of the lens

To change the size of the pupil

To supply the retina with a capillary network

To detect colour

Pupil dilation by contraction of the radial muscles

Pupil dilation by contraction of the circular muscles

Pupil constriction by contraction of the radial muscles

Pupil constriction by contraction of the circular muscles

They function well in low light

The don't see colour

They provide high detail

True

False

I

II

III

IV

Connect the tympanic membrane to the cochlear

Connect the outer ear to the middle ear

Detect the vibrations that make up sound in the middle ear

Connect the cochlear and vestibular apparatus

The organ of corti

The vestibular apparatus

Both the organ of corti and vestibular apparatus

Neither the organ of corti or the vestibular apparatus

500 Hz

1500 Hz

2000 Hz

1000 Hz

500 Hz

1000 Hz

1500 Hz

2000 Hz

2000 Hz

1500 Hz

1000 Hz

500 Hz

500 Hz

2000 Hz

1000 Hz

1500 Hz

II

IV

VI

VIII

Voltage gated ion channels

G-protein coupled receptors

Ligand gated ion channels

Mechanical gated ion channels

Replace receptor cells

Replace supporting cells

Secrete mucous

Provide attachment to the bone

I

II

III

IV

Sweet and sour

Salt and sweet

Salt and sour

Umami and bitter

VII

VIII

IX

X