Head/Neck Flashcards
Layers of the scalp
SCALP: Skin Connective Tissue Aponeurosis Loose Connective Tissue (blood supply) Percranium
What are the 3 branches of the trigeminal nerve and what part of the face do they innervate?
Ophthalmic nerve (V1) - superior face
Maxillary nerve (V2) - middle face
Mandibular nerve (V3) - inferior face
The trigeminal nerve provides what kind of innervation?
Sensory
Which branch of the trigeminal is the only one to provide motor innervation?
Mandibular nerve (V3) to mastication muscles
Provide sensation to the back of the neck/head
Posterior rami of C2-C4
Provide sensation to the anterior/lateral neck
Anterior rami of C2-C4
4 muscles of mastication
Temporalis
Masseter
Lateral pterygoid
Medial pterygoid
Action of temporalis
Elevate and retract mandible
Innervation of temporalis
CN V
Blood supply of temporalis
Maxillary Artery
Action of masseter
Elevate mandible
Blood supply of masseter
Maxillary artery
Innervation of masseter
CN V
Action of lateral pterygoid
Protraction and lateral movements
Innervation of lateral pterygoid
CN V
Innervation of medial pterygoid
CN V
Blood supply of lateral pterygoid
Maxillary artery
Blood supply of medial pterygoid
Maxillary artery
Action of medial pterygoid
Elevate mandible
What does the corneal reflex test?
CN V1 and CN VII
What are the branches of CN VII (facial nerve)? What kind of sensation do they provide?
Temporal branches Zygomatic branches Buccal branches Marginal mandibular branches Cervical branches
Motor innervation
What passes through the parotid gland?
- 5 branches of the facial nerve (CN VII)
- retromandibular vein
- external carotid artery
What emerges anteriorly from the parotid gland?
- 5 branches of the facial nerve
- parotid duct
- transverse facial artery
What emerges superiorly from the parotid gland?
Superficial temporal artery and vein (can palpate)
What two gland produce spit?
Submandibular gland
Sublingual gland
What are the branches of the external carotid, inferior to superior?
Lingual artery Facial artery Maxillary artery (with the buccal artery branching off) Superficial temporal artery Transverse facial artery
What are the 4 sinuses in the cranial bones?
Frontal
Ethmoidal
Maxillary
Sphenoidal
What is the arterial supply to the nasal cavity?
Maxillary artery
Facial artery
Ethmoidal artery
What is the venous drainage of the nasal cavity?
Sphenopalantine vein
Facial vein
Ophthalmic vein
Anterior innervation of the nasal cavity
CN V1
Posterior innervation of the nasal cavity
CN V2
Superior innervation of the nasal cavity
Olfactory nerve (CN I)
What is a unique structure location in the nasopharynx?
Pharyngotympanic tube
4 types of teeth
Incisors
Canine
Premolars
Molars
Mains parts of the tooth
Crown
Neck
Root
Enamel/Cement
Dentine
Pulp Cavity/Root canal
What structures are found in the oral cavity?
Frenulum of tongue Palatoglossal arch Uvula Palatine tonsil Palatopharyngeal arch
Which two bones is the tongue attached to?
Mandible and hyoid