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The Face and Facial Expression 235 Human Anatomy Dr Stuart Bunt.

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Presentation on theme: "The Face and Facial Expression 235 Human Anatomy Dr Stuart Bunt."— Presentation transcript:

1 The Face and Facial Expression 235 Human Anatomy Dr Stuart Bunt

2 Visual Inspection

3 The muscles of the lips H Orbicularis oris –sphincter muscle of the mouth H Elevators of the upper lip –Zygomaticus minor –Levator labii superioris –Nasalis –Zygomaticus major

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5 Depressors of the lips H Depressor labii inferioris H Platysma H Depressor anguli oris H Mentalis

6 Retractors of the angle of the mouth H Zygomaticus major H Depressor anguli oris H Risorius H Platysma

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8 Muscles attached to the nose H Nasalis H Levator labii, superioris alaeque nasi H Levator labii superioris H Zygomaticus minor H Procerus

9 Muscles around the orbit and ear H Orbicularis oculi –orbital –palpebral H Depressor supercilli H Corrugator supercilli H Temporoparietalis H Procerus H Occipito frontalis –frontalis

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11 Problems with eye closure 7th nerve paralysis General paralysis

12 Lymphatic Drainage H Maxillary and anterior mandibular region –Ant. Middle and Post. submandibular nodes –very tip to submental nodes H Anterior Temporal, zygomatic and posterior manidibular regions –Parotid nodes H Ear –retroauricular and subauricular nodes All drain into the cervical lymph nodes around the jugular

13 Lymphatic drainage

14 Nerve Supply H Entirely by 7th Nerve H Entirely motor –except taste from ant 2/3 of tongue H Also supplies tensor tympani of same side H NOT upper eyelid –3rd Nerve

15 The Facial Nerve H Auditory and facial nerve enter internal auditory canal H Fibres leave for Pterygo-palatine ganglion/otic ganglion H External petrosal nerve H Chorda tympani to tongue H Through facial canal in mastoid

16 Clinical Evaluation H “Upper Motor Neuron” –cortex controls lower opposite face –forehead and eye closure dual consensual reflexes H “Lower Motor Neuron” –all muscles on one side affected –taste affected

17 7th nerve damage H Bell’s palsy –pain around ear –no sensory impairment –complete palsy –rapid recovery(2-8wks) –Entrapment in facial canal after infection? –steroids in severe cases where taste affected

18 Other 7th nerve lesions H Ramsay-Hunt syndrome –Herpes Zoster of 7th nerve –very severe pain in ear –vescicles –poor recovery H Hemifacial spasm –irritation of nerve by blood vessel?


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