Face And Scalp 2 Flashcards
What are the two sensory nerves that supply the face
Great auricular nerve c2,3
Trigrminal nerve CN 5
What is the great auricular nerve
Combined anterior rami c2,3
Spinal nerve branch
Supply angle of mandible, area under earlobe
What is great trigeminal nerve
Cranial nerve 5
Has 3 divisions
What are the 3 divisions of the trigeminal nerve
Va - ophthalmic - orbit, mid nose and forehead –> sensory
Vb - maxillary - maxilla and anterior temple –> sensory
Vc - mandibular -mandible, mid temple –> sensory and motor
What is the Opthalmic herpes zoster
Shingles reactivation of chicken pox virus
Virus stays in ganglion in dormant state
When re activated = painful itchy blisters in dermatome involving the eye
What are the 5 branches off of the Opthalmic division of the trigeminal nerve
Lacrimal - secreto-motor = tears
Supra orbital - skin forehead out thro supra orbital foramen
Supra trochlear - medial forehead
Infra trochlear- medial eyelid
External nasal - dorsu of nose and medial ayla
What are the3 branches of the maxillary division of the trigeminal nerve
Zygomatico-facial - cheek prominence thro zygomaticofacial foramen
Zygomatico-temporal - temple
Infraorbital - extensive mid face through infra orbital foramen
What are the 3 branches of the mandibular branch of the trigeminal nerve
Auriculo-temporal - mid temple
Long buccal - Buccinator
Mental - chin and lower lip through mentl foramen
How can the trigeminal nerve be clinically tested
Ask or to close eyes and and gently brush cotton wool tip on face
Do this bilaterally
What are the 5 layers of the SCALP
Skin Connective tissue Aponeurosis Lost connective tissue Periosteum
Which later of the scalp is highly vascularised h
The connective tissue layer under the skin
Which arteries are mostly responsible for the arterial blood supply to the scalp
3 branches of the external carotid artery
- occipital
- posterior auricular
- superficial temporal
2 terminal branches off of the Opthalmic branch of the internal carotid artery
- supra orbital
- supra trochlear
What is an anastamosis
Network of arteries
Cause of excessive bleeding if harmed
What is the aponeurosis
The flat tendinitis layer which connects the frontal is an occipitalis
Aka epicranial aponeurosis
What’s the periosteum layer of the scalp
Very thin tissue closely attached to the bone of the skull
Relation to ossification
