Head 2

Question 1

The afferent fibers of the corneal reflex arc are carried by which of the following nerves

Answer 1

Nasociliary nerve

Question 2

Corneal blink reflex

Answer 2

Afferent limb: nasociliary nerve of the ophthalmic division of trigeminal nerve
Efferent limb: facial nerve

Question 3

Other name for trigeminal neuralgia

Answer 3

Tic Douloureux

Question 4

What supplies the tip of the noes

Answer 4

Ophthalmic div of trigeminal nerve

Question 5

Where are the muscles of the eyeball derived???

Answer 5

DON’T KNOW

Question 6

Describe the facial vein

Answer 6

• begins as ANGULAR VEIN by the union of SUPRAORBITAL and SUPRATROCHLEAR veins
• drains into the IJV by joining the RETROMANDIBULAR VEIN to form the COMMON FACIAL VEIN

Question 7

Describe the retromandibular vein

Answer 7

• formed by the union of superficial temporal and maxillary viens
• divides into the anterior branch which joins the facial vein to form the common facial vein and the posterior branch which joins the posterior auricular vein to form the EXTERNAL JUGULAR VEIN

Question 8

Describe oculomotor’s parasympathetics

Answer 8

Edinger-Westphal nucleus
Ciliary ganglion
Ciliary muscle and sphincter muscle

Question 9

Describe the parasympathetics to the lacrimal glands

Answer 9

Lacrimal nucelus
Geniculate ganglion
**Greater petrosal nerve (CN VII, preganglionic)
Pterygopalatine ganglion
Zygomatic and lacrimal nerves
Lacrimal glands, nasal and palatine glands
*may also contain taste fibers from the mucous membranes of the palate

Question 10

Describe the parasympathetics to the submandibular and sublingual glands

Answer 10

Superior salivator nucelus
Submandibular ganglia
submandibular and sublingual glands

Question 11

Descirbe the parasympathetics to the parotid gland

Answer 11

Inferior salivatory nucleus
Lesser petrosal nerve (preganglionic, foramen ovale; arises from tympanic plexus of CN IX)
Otic ganglion
Auriculotemporal nerve (postganglionic)
Parotid gland

Question 12

Key parts of the tongue

Answer 12

Sulcus terminalis

Foraen cecum

Question 13

Lingual papillae

Answer 13

Circumvallate - V form;largest and least common type; contain most of the taste buds
-contains VON EBNER’S GLANDS
Fungiform - sides and apex
Filiform - most numerous
Foliate - rudimentary

Question 14

Muscles of the tongue

Answer 14

Palatoglossus - elevation
Styloglossus - retraction
Hyoglossus - depression
Genioglossus - protrusion

Question 15

Muscle the comprises the bulk of the tongue

Answer 15

Genioglossus

Question 16

What passes through the optic canal

Answer 16

Optic nerve and ophthalmic artery

Question 17

What pass through the superior orbital fissue

Answer 17

OPHTHALMIC nerve (V1), ophthalmic VEIN
CN III,IV,VI

Question 18

What pass through the inferior orbital fissure

Answer 18

Maxillary nerve (V2) and its infraorbital and zygomatic branches;
Inferior ophthalmic vein
Sympathetic nerves

Question 19

Orbital roof

Answer 19

“FoSsiL” at the roof

Frontal bone, orbital plate
Sphenoi, lesser wing

Question 20

Lateral orbital wall

Answer 20

Late for the Zoo with greater wings

Zygomatic bone
Sphenoid, greater wing

Question 21

Floor of orbital cavity

Answer 21

Floor of Zoo. MoP it

Zygomatic
Maxilla, orbital plate
Palatine bones

Question 22

Medial wall of orbital cavity

Answer 22

m(f)leos

Maxilla, frontal process
Lacrimal bone
Ethmoid, orbital plate
Sphenoid, body

Question 23

Right nasal hemianopsia

Answer 23

Uncrossed fibers on the right optic chiasm

Question 24

Lesion on the inferior optic radiation

Answer 24

(Temporal lobe pathway or meyer’s loop)
Contralateral superior homonymous quadrantanopsia
“Pie in the sky”

Question 25

Lesion on the superior optic radiation

Answer 25

“Parietal pathway” Contralateral inferior homonymous quadrantanopsia “Pie in the floor”

Question 26

Discuss geniculocalcrine tract

Answer 26

Combined tracts from the temporal (meyer’s loop) and parietal lobe Lesion: contralateral homonymous hemianopsia (just like optic tract)

Question 27

Lesion on the inferior bank of the calcrine fissure

Answer 27

Contralateral superior homonymous quadrantanopia with macular sparing

Question 28

Lesions on the superior bank of calcrine fissure

Answer 28

Contralateral inferior homonymous quadrntanopia with macular sparing

Question 29

Lesions on both banks of calcrine fissure

Answer 29

“Primary visual cortex” | Contralateral homonymous hemi anopia with macular sparing

Question 30

Origin of the pituitary gland

Answer 30

Rathke pouch (?)

Question 31

Medial wall of the nasal cavity

Answer 31

VES Vomer Ethmoid, perpendicular plate Septal cartilage

Question 32

Lateral wall of the nasal cavity

Answer 32

Superior, middle and inferior nasal conchae

Question 33

Roof of the nasal cavity

Answer 33

Ec (easy), NFS Ethmoid, cribriform plate Nasal Frontal Sphenoid, body

Question 34

Floor of the nasal cavity

Answer 34

MapPh Maxilla, palatine process Palatine, horizontal plate

Question 35

Describe the course of greater petrosal nerve

Answer 35

The nerve emerges on the superior surface of the petrous part of the temporal bone and is eventually joined by the deep petrosal nerve from the sympathetic plexus on the internal carotid artery and forms the NERVE OF THE PTERYGOID CANAL This passes forward and enters the ptery-gopalatine fossa, where it ends in the PTERYGOPALATINE GANGLION