Last minute Flashcards
What type of joint is the TMJ?
Modified hinge type synovial
Which artery is the STA a branch of?
ECA
From which embryological structure do the facial muscles come from?
Second branchial arch
What are the four muscles of facial expression?
Frontal and occipital belly of occipitofrontalis muscle
Buccinator
Orbicularis Oculi
Orbicularis Oris
From which foramen does the facial nerve leave to get to the face?
Stylomastoid foramen
Which tooth does the parotid duct open into?
2nd upper maxillary molar tooth
Which para nerve innervates the parotid duct?
Glossopharyngeal
What nerve innervates the sternocleidomastoid?
Spinal root of accessory nerve
Name the four infrahyoid muscles
Sternohyoid
Sternothyroid
Omohyoid
Thyrohyoid
Name the four suprahyoid muscles
Stylohyoid
Digastric
Geniohyoid
Myelohyoid
At what level does the isthmus lie?
second to third tracheal ring
What four things open into the middle meatus?
Maxillary sinus
Frontal sinus
Anterior and middle ethmoidal cells
What are the muscles of mastication?
Temporalis
Masseter
Medial and Lateral Pterygoids
What is the innervation to the muscles of mastication and what are they derived from?
Mandibular division of trigeminal nerve
Derived from first pharyngeal arch
What separates the tongue into thirds?
Terminal sulcus
What nerves supply the tongue with taste sensation?
Posterior third - internal laryngeal
Anterior two thirds - chorda tympani branch of facial nerve
What nerves supply the tongue with general sensation?
Posterior third - lingual branch of glossopharyngeal
Anterior two thirds - lingual branch of V3
What tongue muscle is not supplied by hypoglossal nerve?
Palatoglossus
What are the four types of papillae on the tongue?
Filiform
Vallate-flat anterior to sulcus
Fungiform- at apex and side of tongue
Foliate- at side of tongue
What supplies the cricothyroid muscle?
Superior laryngeal nerve
What travels through the inferior orbital fissure?
Maxillary nerve
What is the action of tensor tympani and stapedius muscles?
TT-pulls malleus medially to tense the membrane so vibrations are reducedStapedius- pulls stapes forward to reduce oscillatory range
What nerve innervates the submandibular and sublingual glands?
Facial
At what age do the anterior and posterior fontanelles close?
A-18-24 months
P-2-3 months
What is the epithelium of the tongue?
Keratinised stratified squamous epithelium
What is the histological appearance of the different salivary glands?
Sublingual-stains pale as secretes thick mucous
Parotid-stains dark as secretes serous
Submandibular-mix of both
Name the nerves that arise from branchial arches 1-6
1-mandibular 2-facial 3-glossopharyngeal 4-superior laryngeal 6-recurrant laryngeal
