MidLine and Neck Innervations Flashcards
Soft Palate sensation innervated by?
CN IX - glossopharyngeal
Soft Palate motor innervation?
CN V3 and CN X
Tensor veli palatini muscle
Uvula sensation innervation
CN IX - glossopharyngeal
Uvula motor innervation
CN X
Vestibular Folds are often called?
False vocal cords
Blood supply of Parotid Gland
Superior Temporal Artery
Sensory Innervation of Parotid Gland
CN V3
Parasympathetic Innervation of Parotid Gland
Lesser Petrosal Nerve via Auriculotemporal Nerve of CN V3
Blood supply of submandibular and sublingual gland
Lingual Artery
Sensory innervation of submandibular and sublingual gland
CN V3
parasympathetic activation of submandibular and sublingual gland
Chorda tympani from CN VII via lingual nerve
Palantine Nerve function
branch of CN V2.
Sensation in posterior nasal cavity, roof of mouth (hard palate)
Superior Laryngeal Nerve - sensory, motor, or both?
Both
Superior Laryngeal Nerve - sensory (somatic and visceral) innervations
Provides somatic sensory innervation to upper larynx.
Visceral sensory innervation to trachea and esophagus in neck, mucous glands in larynx
Superior Laryngeal Nerve - motor innervation
somatic motor control of cricothyroid muscle (for speech)
Superior Laryngeal Nerve - parasympathetics
mucous glands in larynx
Inferior laryngeal nerve - sensory, motor, or both?
Both
Inferior laryngeal nerve - sensory (somatic and visceral) innervations
Provides somatic sensory innervation to lower larynx.
visceral sensory innervation to trachea and esophagus in neck, mucous glands in larynx
Inferior laryngeal nerve - motor innervations
somatic motor control of laryngeal muscles (for speech)
Ansa cervicalis innervates?
SOS
sternohyoid
omohyoid
sternothyrid
source Ansa cervicalis
C1-C3
Phrenic Nerve - sensory innervations
sensory innervation to parietal pleura, fibrous pericardium, diaphragm
Phrenic Nerve - motor innervations
Diaphragm
What is the “nerve point”?
Sensory branches of cervical plexus, found at “nerve point” behind stenocleidomastoid
Sensory branches of cervical plexus innervate what region
Sensory innervation to anterior/lateral neck from clavicle to below ear
Sympathetic Chain source
T1-L2
Function of Sympathetic Chain
In neck, sympathetic innervation to viscera, sweatglands, vasculature of head/neck
deep to carotid sheath
Destination of the sympathetic chain
Neck, thorax, abdomen, pelvis
Function of Thyroid
Produces thyroid hormones and calcitonin to regulate metabolism/protein synthesis, growth/development, and calcium metabolism
Blood supply to thyroid
Superior and Inferior Thyroid Arteries
Innervation of Thyroid Gland
Sympathetic - Sympathetic Chain,
other activity by pituitary hormones
Trachea Function
Transmits air into lungs from laryngopharynx during inspiration, from lungs to laryngopharynx during expiration
Trachea blood supply
Superior thyroid artery, inferior thyroid artery
Trachea Innervation
vagus nerve (parasympathetic);
sympathetic chain (sympathetic),
sensation pathways: unconcious/reflex (vagus) pain (sympathetic)
Esophagus Function
Transmits food bolus from pharynx to stomach
Esophagus blood supply
Pharyngeal plexus, inferior thyroid artery
Esophagus Innervation
Innervation: vagus nerve (parasympathetic); sympathetic chain (sympathetic),
sensation pathways: unconcious/reflex (vagus) pain (sympathetic)
