hns 2 test

Question 1

When testing the extra ocular muscles, you need to ask the patient t

Answer 1

report double vision at anytime during the examination and note when this was reported in relation to the position of the eyes

Question 2

Looking for a relevant neurological disorder signs:

Answer 2

Aniscoria
Ptosis (drooping eyelid)
Eye alignment
Nystagmus (will cover this important sign in Phase 1b)

Question 3

what shape do you draw

Answer 3

H

Question 4

Lateral rectus

Innervation
Function of the muscle
Direction to move eye when TESTING the muscle

Answer 4

Abducens (VI)
Abduction
Look laterally

Question 5

Medial rectus

Innervation
Function of the muscle
Direction to move eye when TESTING the muscle

Answer 5

Oculomotor (III)
Adduction
Look medially

Question 6

Superior rectus

Innervation
Function of the muscle
Direction to move eye when TESTING the muscle

Answer 6

Oculomotor (III)

Elevation, medial rotation, adduction

Look laterally and upward

Question 7

Inferior rectus

Innervation
Function of the muscle
Direction to move eye when TESTING the muscle

Answer 7

Oculomotor (III)

Depression, lateral rotation, adduction

Look laterally and downward

Question 8

Superior oblique

Innervation
Function of the muscle
Direction to move eye when TESTING the muscle

Answer 8

Trochlear (IV)

Depression, medial rotation, abduction

Look medially and downward

Question 9

Inferior oblique

Answer 9

Oculomotor (III)

Elevation, abduction and lateral rotation

Look medially and upward

Question 10

Trigeminal nerve (CN V) function

Answer 10

Sensory: Innervates the skin, mucous membranes and sinuses of the face.
Motor: Innervates the muscles of mastication

Question 11

where do all 3 brnaches arise

Answer 11

In middle cranial fossa, three divisions of the trigeminal nerve arise; the ophthalmic (V1), maxillary (V2) and mandibular (V3).

Question 12

V1 Ophthalmic division

Answer 12

Passes through the cranium via the superior orbital fissure. Supplying sensation to the forehead and scalp, frontal and ethmoidal sinus, upper eyelid and cornea and upper nose.

Question 13

V2 Maxillary division

Answer 13

Passes through the cranium via foramen rotundum. Supplying sensation to
the skin and mucous membranes; of the cheeks, maxillary sinus, nasal cavity and lateral
nose, upper lip, upper teeth, gum and superior palate.

Question 14

V3 Mandibular division

Answer 14

Mandibular nerve which contains motor and sensory fibres passes through the cranium via the foramen ovale.

Sensory innervation to the skin of the lower lip, chin and jaw, mucous membranes of the floor of the oral cavity, anterior 2/3 of the tongue (only general sensation), lower teeth and gum.

Motor innervation to the muscles of mastication; medial pterygoid, lateral pterygoid, masseter and temporalis.

Question 15

how to test genreal sensation of the face

Answer 15

first put it on another part to show trength
put cotton wool on a person forhead at both corners
then maxillary
then mandible
each relate to each division

Question 16

test trigeminal nerve

Answer 16

ask to clench teeth
come from behind
top part is the temporalis
bottom jaw part is masseter

Question 17

Facial Nerve (CN VII) function

Answer 17

Motor: Innervates the muscles of facial expression.
Sensory: A small area of the pinna of the ear.
Special Sensory: Taste sensation to the anterior 2/3 of the tongue.
Parasympathetic: Supplies many of the glands of the head and neck.

Question 18

Facial nerve lower motor neurone (LMN) weakness

Answer 18

all facial muscles are affected. If severe, the patient is unable to close the eye and the eye is seen to roll up on attempted closure (Bell’s phenomenon).

Question 19

Facial nerve upper motor neurone (UMN) weakness

Answer 19

forehead sparing. the patient is able to close the eye tightly and raise their eye brow.

Question 20

facial nerve test

Answer 20

raise eyebrow (Temparol branch of CN VI)
squeeze eye shut (maxillary branch)
try open them 
smile showing teeth- buccal branch 
puff cheeks out - mandibular 
try squeeze them 
grimace- cervical branch of the

Question 21

facial nerve goes through the parotid gland and forms five branches that supply facial expression.

Answer 21

Temporal branch
Zygomatic branch
Buccal branch
Marginal mandibular branch
Cervical branch