Cranial Nerves
Nerve responsible for muscles of facial expression
Facial Nerve (CN VII)
Primary muscle that opens the jaw
Lateral pterygoid
Largest salivary gland
Parotid gland
Primary arterial supply to the head and neck
External carotid artery
Which gland drains via Wharton’s duct?
Submandibular
Nerve that controls tongue movement
Hypoglossal nerve
Primary elevator of the mandible
Masseter
Salivary gland most commonly affected by stones
Submandibular gland
Major vein draining the brain
Internal jugular vein
A bluish, fluctuant swelling in the floor of the mouth is most likely
Rannula
Primary sensor nerve of the face
Trigeminal Nerve
Muscle responsible for protrusion of mandible
Lateral pterygoid
Salivary gland located under the tongue
Sublingual gland
During a posterior superior alveolar (PSA) injection, a patient develops a hematoma. Which artery was most likely punctured?
Pterygoid venous plexus
Does the facial nerve control facial expression
NO
Loss of taste to anterior 2/3 of the tongue indicates damage to
Facial Nerve
Muscle that retracts the mandible
Temporalis
Salivary gland that produces serous saliva
Parotid
A lesion on the tip of the tongue will first drain to which lymph nodes?
Tip of tongue → submental nodes
Lateral tongue → deep cervical
Where's the most common place to have a sialolithiasis
Submandibular Gland
Inability to shrug shoulders indicates damage to
Spinal Accessory nerve
Why this matters: When you are palpating the Cervical lymph nodes, SCM muscle, Trapezius region. The spinal accessory nerve innervates those
Muscle that assists in opening(depressing) the jaw
Digastric- elevates the hyoid during swallowing
During an inferior alveolar nerve block, the patient reports numbness of the anterior 2/3 of the tongue but taste remains intact, what nerve is affected?
Lingual Nerve
The best method to prevent hematoma formation during injections is
Aspiration before deposition
A large submandibular sialolith could potentially affect which nerve due to its anatomical proximity?
Lingual Nerve-loops under Wharton’s duct