Special Senses

Question 1

What structures pass through the optic foramen?

Answer 1

Optic nerve

Opthalmic artery

Question 2

What structures pass through the superior orbital fissure?

Answer 2

Occulomotor nerve

Opthalmic branch of Trigeminal nerve

Trochlear nerve

Abducens nerve

Opthalmic veins

Question 3

What structures pass through the inferior orbital fissure?

Answer 3

Maxillary branch of Mandibular nerve

Question 4

What parts of the eye make up the fibrous layer?

Answer 4

Sclera

Cornea

Question 5

What aprts of the eye make up the middle vascular layer?

Answer 5

Ciliary body

Choroid

Iris

Question 6

What are the structures that make up the inner sensory layer of the eye?

Answer 6

Neural layer

Pigmented layer

Question 7

What is the fluid called in the anterior segment of the eye?

Answer 7

Aqueous Humour

Question 8

What is the fluid called in posterior segment of the eye?

Answer 8

Viterous humour

Question 9

What part of the eye produces aqueous humour?

Answer 9

Ciliary body

Question 10

What are the intrinsic muscles of the eye?

Answer 10

Ciliaris

Pupillae constrictor

Pupillae dilator

Question 11

What are the actions of each of the intrinsic muscles of the eye?

Answer 11

Ciliaris - accomodation

Pupillae constrictor - constricts pupil

Pupillae dilator - dilates pupil

Question 12

What is the innervation of each of the intrinsic muscles of the eye?

Answer 12

Ciliaris - parasympathetic from occulomotor

Pupillae constrictor - parasympathetic from occulomotor

Pupillae dilator - sympathetic

Question 13

What does the extrinsic muscles of the eye do to the eyeball?

Answer 13

Medial rectus - adducts

Lateral rectus - abducts

Superior rectus - elevates

Inferior rectus - depresses

Superior oblique - intort

Inferior oblique - extort

Question 14

What is the function of the levator palpebrae superioris?

Answer 14

It elevates the upper eyelid

Question 15

What is the only muscle that does not originate from the posterior aspect of the orbit?

Answer 15

Inferior oblique

Question 16

What is the artery that supplies the eyeball?

Answer 16

Opthalmic artery

Question 17

What is the opthalmic artery a branch of?

Answer 17

ICA

Question 18

Which foramina do the opthalmic veins pass through on their way to the cavernous sinus?

Answer 18

Superior orbital fissure

Question 19

Which nerve innervates the lacrimal gland?

Answer 19

Opthalmic branch of Trigeminal

Question 20

Within which bone do the middle and inner ears lie?

Answer 20

Petrous part of Temporal bone

Question 21

What type of fluid lies inside the bony labyrinth?

Answer 21

Perilymph

Question 22

What type of fluid lies inside the mebranous labyrinth?

Answer 22

Endolymph

Question 23

What is the function of the semicircular canals?

Answer 23

Balance

Question 24

What is the function of the cochlea?

Answer 24

Hearing

Question 25

Through which foramen of the posterior cranial fossa does the facial nerve pass?

Answer 25

Internal acoustic meatus

Question 26

Which nerves pass through the internal acoustic meatus?

Answer 26

Vestibulocochlear & Facial

Question 27

What does the chorda tympani branch of the facial nerve innervate?

Answer 27

Parasympathetic fibres - submandibular and sublingual glands Special sensory - taste to anterior 2/3 of tongue

Question 28

Which lymph nodes drain the middle ear and lateral parts of the eyelid?

Answer 28

Parotid nodes

Question 29

Which group of lymph nodes drain the cheek region?

Answer 29

Buccal nodes

Question 30

Which group of lymph nodes drain anterior tip of tongue, central floor of mouth and chin?

Answer 30

Submental nodes

Question 31

Which group of lymph nodes drain the front of scalp, nose, lips, sinuses (except sphenoid), anterior tongue?

Answer 31

Submandibular nodes

Question 32

Which group of lymph nodes drain the central area of the scalp and external auditory meatus?

Answer 32

Mastoid nodes

Question 33

Which group of lymph nodes drain the back of the scalp?

Answer 33

Occipital nodes

Question 34

What 4 bones form the Pterion?

Answer 34

Frontal Parietal Temporal Sphenoid (greater wing)

Question 35

A collection of blood between the periosteum and the dura matter results in what type of pathology? What type of appearance does this pathology have when seen on CT?

Answer 35

Extradural Hameorrhage Convex (lens) shaped

Question 36

What is the name of the grooves that run laterally either side of the occipital protrubaranece?

Answer 36

Tranverse sinus

Question 37

In which bone of the skull is the sella turcica found?

Answer 37

Sphenoid

Question 38

What do the anterior and posterior clinoid processes provide attachments for?

Answer 38

Tentorium cerebelli

Question 39

What is the groove found in the midline of the skull cap called?

Answer 39

Superior sagittal sinus

Question 40

What muscles attach to the lateral pterygoid plate?

Answer 40

Medial and lateral pterygoid muscles

Question 41

What muscle attaches to the medial pterygoid plate?

Answer 41

Superior pharyngeal constrictor

Question 42

What type of ossification occurs in the flat bones of the skull?

Answer 42

Intramembraneous

Question 43

What type of ossification occurs in the irregular bones of the skull base?

Answer 43

Endochondrial

Question 44

What type of epithelium covers the tongue?

Answer 44

Keratinised stratified squamous

Question 45

What type of muscle fibres lie beneath the epithelium of the tongue?

Answer 45

Skeletal

Question 46

What type of secretion is poduced by the parotid gland?

Answer 46

Serous

Question 47

What type of secretions are produced by the submandibular glands?

Answer 47

Mixed - mucous and serous

Question 48

What type of secretions are produced by the sublingual glands?

Answer 48

Mucous