Week 3 Wet Room Special Senses Flashcards Preview

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Flashcards in Week 3 Wet Room Special Senses Deck (69)
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1

Name the 3 foramina at the apex of the orbit

Optic foramen
Superior orbital fissure
Inferior orbital fissure

2

What passes through the Optic Foramen

Optic nerve
Ophthalmic artery

3

What passes through the superior orbital fissure

CN III
CN IV
CN VI
Ophthalmic division of V nerve
Ophthalmic veins

4

What passes through the inferior orbital fissure

Maxillary division of V nerve

5

Name the paranasal air sinuses on the skull

Frontal
Ethmoid air cells
Maxillary
Sphenoid

6

What are the main contents of the orbit

Branches of the ophthalmic artery
Extrinsic ocular muscles
Ligaments supporting the eye
II, III, IV, VI nerve
Lacrimal (tear) apparatus
Fat, orbital and retrobulbar fascia
Ciliary ganglion

7

What makes up the outer fibrous layer of the eye

Sclera and Cornea- complete layer extends all the way round

8

What makes up the middle vascular layer of the eye

Choriod and Ciliary body and Ciliary process- incomplete anteriorly. Anterior aperture is called pupil

9

What makes up the inner sensory layer of the eye

Retina- posteriorly

10

What is the name given to the watery fluid in the anterior segment of the eye

Aqueous humour

11

What name is given to the gel in the posterior segment of the eye

Vitreous humour

12

Name features found in the eye

Ciliary body
Lens
Macular
Optic disc
Optic nerve
Ora Serrata

13

What part of the eye produces (secretes) aqueous humour

Anterior segment

14

Where is the Ciliaris located

Radially running muscle on borders

15

What is the action of the Ciliaris muscle

Accommodation

16

What nerve innervates the Ciliaris muscle

Parasympathetic via cranial nerve III

17

What is the location of the sphincter papillae

Pupillary border of iris

18

What is the action of the sphincter papillae

Constricts pupil

19

What is the sphincter papillae innervated by

Parasympathetic via cranial nerve III

20

Where is the dilatory papillae located

Radially running muscle in iris

21

What is the action of the dilator papillae

Dilates pupil

22

What is the innervation of the dilator papillae

Sympathetic

23

What muscles produce eye movements

Extrinsic eye muscles

24

There are 6 Extrinsic muscles, 4 straight and 2 oblique what are they

Lateral rectus
Medial rectus
Superior rectus
Inferior rectus
Superior oblique
Inferior oblique

25

What is the actions of the medial rectus

Adduct

26

What is the action of the lateral rectus

Abduct

27

What is the action of the superior rectus

Elevation, Adduction, Intorsion

28

What is the action of the inferior rectus

Depression, adduction, extorsion

29

What are the action of the superior oblique

Depression, abduction, intorsion

30

What are the actions of the inferior oblique

Extorsion, Elevation,Abduction