Overview Flashcards
Name these sutures
A coronal
B Sagittal
C lambdoid
E squamous
Where is the pterion and what bones make it up?
What could arise as a consequence of trauma at the pterion?
- weakest point of the skull
- rupture of middle meningeal artery
- extra-dural haemorrhage
Pneumatised bones of cranium?
Air filled
- temporal
- sphenoid
- ethmoid
- frontal
- maxilla
Bones of the facial skeleton?
Branches of trigeminal nerve?
- ophthalmic (s)
- maxillary (s)
- mandibular (sm)
What nerve gives motor supply to the muscles of mastication?
Mandibular branch of trigeminal nerve (V)
What nerve supplies the muscles of facial expression?
Facial nerve
What nerve supplies sensory innervation to the face?
Trigeminal
What three vessels run through the parotid gland?
- facial nerve
- retro mandibular vein
- external carotid artery
What are the branches of the facial nerve?
- temporal
- zygomatic
- buccal
- marginal mandibular
- cervical
Which nerve increases secretion of the parotid gland?
Glossopharyngeal
What is the origin and insertion of the masseter?
- zygomatic arch
- angle of the mandible
What is the function of the masseter?
Elevates the mandible
What is the origin and insertion of the temporalis?
- floor of temporal fossa
- coronoid process
What is the function of the temporalis?
Elevates the mandible
Retracts the mandible
What is the origin and insertion of the medial pterygoid?
- tuberosity of maxilla/medial surface of pterygoid plate
- angle of the mandible
What is the function of the medial pterygoid?
Elevates the mandible
Protrudes the mandible
Which is the only muscle of mastication which we cannot test?
Medial pterygoid
What is the origin and insertion of the lateral pterygoid?
- lateral surface of pterygoid plate
- intra-auricular disk/anterior border of condyle
What is the function of the lateral pterygoid?
Depress the mandible
Laterally deviate the mandible
What are the two parts of the obicularis oculi and their function?
- orbital=strong closure
- palpebral=soft closure
Which disease causes a patient to have a mask like facial expression?
Parkinson’s
Which disease results from facial paralysis on one side?
Bell’s palsy
Where in the cranium, does the spinal cord enter?
Foremen magnum of the occipital lobe
Thinnest bone?
Lacrimal
Branches of external carotid artery?
- SUPERFICIAL TEMPORAL
- MAXILLARY
- posterior auricular
- occipital
- facial
- lingual
- ascending pharyngeal
- superior thyroid
Three vessels which extend off the aortic arch?
- branciocephalic
- left common carotid
- left subclavian
TMJ anatomy
What type of joint is the TMJ?
Synovial
Nerve supply to tongue?
Nerve supply to anterior triangle?
- hypoglossal
Blood supply to TMJ?
- maxillary artery
- superficial temporal artery
