Dysphagia Quiz 3 👅

cranial

V - Trigeminal Nerve, Type and UMN Innervation

Both, Bilateral

V - Trigeminal Nerve, Muscle Innervation

Masseter, Temporalis, Tensor Tympani

V - Trigeminal Nerve, Function

motor: Mastication

Sensory: Sensation of shape and texture in mouth

V - Trigeminal Nerve, signs of lesion

UMN: deviation of the jaw to the side of the lesion

LMN: fasciculations of temporalis and masseter muscles

V - Trigeminal Nerve, Effects of Damage on Swallowing Function

1. Impaired bolus formation

2. Oral residue

VII - Facial Nerve, Type and UMN Innervation

Both, Bilateral (Upper Face) + Contralateral (Lower Face)

VII - Facial Nerve, Muscle Innervation

Facial expression:

Obicularis Oris, Risorius, Buccinator

VII - Facial Nerve, Function

Motor: Facial expressions

Sensory: Taste to anterior 2/3 of the tongue

VII - Facial Nerve, signs of lesion

UMN: contralateral lower facial weakness, Loss of taste from the anterior 2/3 of the

tongue

LMN: ipsilateral facial droop - corner of mouth droops, difficult to close 1 eye

VII - Facial Nerve, Effects of Damage on Swallowing Function

1. drooling

2. Reduced taste

IX - Glossopharyngeal Nerve Type and UMN innervation

Both, Bilateral

IX - Glossopharyngeal Muscle Innervation

Stylopharyngeus muscle

IX - Glossopharyngeal Function

Motor: hyolaryngeal elevation

Sensory: Taste to posterior 1/3 of tongue

IX - Glossopharyngeal signs of lesion

Loss of taste from the posterior 1/3 of tongue

IX - Glossopharyngeal effects on swallowing

Absent gag reflex (due to impaired sensation)

X - Vagus Nerve Type and UMN Innvervation

Both, Bilateral

X - Vagus Muscle Innervation

Intrinsic muscles of larynx, Muscles of soft palate

X - Vagus Function

Soft palate elevation and depression

X - Vagus signs of lesion

vocal fold paralysis

X - Vagus Swallowing Damage

Hypernasality, Dysphonia

XI - Spinal Accessory Nerve Type and UMN Innvervation

Motor, bilateral and contralateral

XI - Spinal Accessory Muscle Innervation

Trapezius, Sternocleidomastoid

XI - Spinal Accessory Function

Turn neck, Shrug shoulders

XI - Spinal Accessory signs of lesion

Reduced or inability to rotate head or shrug shoulders

XI - Spinal Accessory swallowing effects

Inability to perform compensatory strategies (e.g., head turn)

XII - Hypoglossal Nerve Type and UMN Innervation

Motor, Bilateral and Contralateral

XII - Hypoglossal Nerve Muscle innervation

Genioglossus, Hyoglossus, styloglossus

XII - Hypoglossal Nerve Function

Shaping tongue

XII - Hypoglossal Nerve signs of lesion

reduced tongue movement, fasciculations

XII - Hypoglossal Nerve swallowing effects

decreased bolus manipulation

Cervical Spine Nerve 1 - Type and UMN innervation

Both, Contralateral

Cervical Spine Nerve 1 - Muscle innervation

Geniohyoid, Thyrohyoid

Cervical Spine Nerve 1 - Function

hyoid movement

Cervical Spine Nerve 1 swallowing effects

reduced hyolaryngeal movement

Ansa Cervicalis Type and UMN innervation

Both, Contralateral

Ansa Cervicalis Muscle Innervation

Infrahyoid muscles

Ansa Cervicalis Function

Depresses hyoid

Stabilize hyoid

Ansa Cervicalis swallowing effects

Reduced laryngeal elevation