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Year 1: 05. Neuro Exam 1 > Neck and Larynx Muscles > Flashcards

Neck and Larynx Muscles Flashcards

1
Q

What does the Trapezius Muscle do?

What innervates it?

A

Extends neck bilaterally, laterally flexes neck and rotates face away
Spinal Accessory Nerve

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2
Q

What does the Sternocleidomastoid Muscle do?

What innervates it?

A

Extends and flexes neck, laterally flexes neck and rotates face away
Spinal Accessory Nerve

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3
Q

What does the Levator Scapulae Muscle do?

What innervates it?

A

Extends and laterally flexes neck

Dorsal Scapular Nerve

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4
Q

What does the Splenius Capitus Muscle do?

What innervates it?

A

Extends neck bilaterally, laterally flexes neck and rotates face toward
Posterior Rami C3-C5

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5
Q

What does the Anterior Scalene Muscle do?

What innervates it?

A

Flexes neck and elevates first rib

Anterior Rami C4-C6

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6
Q

What does the Middle Scalene Muscle do?

What innervates it?

A

Flexes neck and elevates first rib

Anterior Rami C3-C8

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7
Q

What does the Posterior Scalene Muscle do?

What innervates it?

A

Laterally flexes neck and elevates second rib

Anterior Rami C6-C8

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8
Q

What does the Mylohyoid Muscle do?

What innervates it?

A

Elevates hyoid bone and floor fo mouth + tongue

Nerve to Mylohyoid

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9
Q

What does the Geniohyoid Muscle do?

What innervates it?

A

Elevates hyoid bone, shortens floor of mouth, widens pharynx
C1 via hypoglossal nerve

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10
Q

What does the Digastric Muscle do?

What innervates it?

A

Elevates and steadies hyoid bone, depresses mandible
Anterior Belly: Nerve to Mylohyoid
Posterior Belly: Facial Nerve

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11
Q

What does the Stylohyoid Muscle do?

What innervates it?

A

Elevates and retracts hyoid bone, elongates floor of mouth

Facial Nerve

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12
Q

What does the Sternohyoid Muscle do?

What innervates it?

A 
Depresses Hyoid Bone
Ansa Cervicalis (C1-C3)
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13
Q

What does the Sternothyroid Muscle do?

What innervates it?

A 
Depresses thyroid cartilage
Ansa Cervicalis (C2-C3)
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14
Q

What does the Thyrohyoid Muscle do?

What innervates it?

A

Depresses Hyoid Bone and elevates thyroid cartilage

C1 via hypoglossal nerve

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15
Q

What does the Omohyoid Muscle do?

What innervates it?

A 
Depresses and retracts hyoid bone
Ansa Cervicalis (C1-C3)
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16
Q

What does the Platysma Muscle do?

What innervates it?

A

Draw corner of mouth inferiorly and draws skin of neck superiorly
Cervical Branch of Facial Nerve

17
Q

What does the Superior Pharyngeal Constrictor Muscle do?

What innervates it?

A

Constricts pharyngeal wall

Pharyngeal Branch of Vagus Nerve

18
Q

What does the Middle Pharyngeal Constrictor Muscle do?

What innervates it?

A

Constricts pharyngeal wall

Pharyngeal Branch of Vagus Nerve + Branches of Recurrent Laryngeal Nerve

19
Q

What does the Inferior Pharyngeal Constrictor Muscle do?

What innervates it?

A

Constricts pharyngeal wall

Pharyngeal Branch of Vagus Nerve + Branches of Recurrent Laryngeal Nerve

20
Q

What does the Palatopharyngeus Muscle do?

What innervates it?

A

Elevates pharynx and larynx

Pharyngeal Branch of Vagus Nerve

21
Q

What does the Salpingopharyngeus Muscle do?

What innervates it?

A

Elevates pharynx and larynx

Pharyngeal Branch of Vagus Nerve

22
Q

What does the Stylopharyngeus Muscle do?

What innervates it?

A

Elevates pharynx and larynx

Glossopharyngeal Nerve

23
Q

What does the Cricothyroid Muscle do?

What innervates it?

A

Stretches and tenses vocal ligament (high notes)

External Laryngeal Nerve (External Branch of Superior Laryngeal Nerve)

24
Q

What does the Posterior Cricoarytenoid Muscle do?

What innervates it?

A

Abducts vocal fold

Recurrent Laryngeal Nerve

25
Q

What does the Lateral Cricoarytenoid Muscle do?

What innervates it?

A

Adducts vocal fold

Recurrent Laryngeal Nerve

26
Q

What do the Transverse and Oblique Arytenoid Muscle do?

What innervates it?

A

Adducts arytenoid cartilage and closes intercartilaginous part of rima glottidis
Recurrent Laryngeal Nerve

27
Q

What does the Thyroarytenoid Muscle do?

What innervates it?

A

Relaxes vocal fold

Recurrent Laryngeal Nerve

28
Q

What does the Vocalis Muscle do?

What innervates it?

A

Relaxes posterior part of vocal ligament and tenses anterior part of vocal ligament
Recurrent Laryngeal Nerve

29
Q

What does the Longus Colli Muscle do?

What innervates it?

A 
Flexes neck and rotates face away 
Anterior Rami (C2-C6)
30
Q

What does the Longus Capitus Muscle do?

What innervates it?

A 
Flexes neck 
Anterior Rami (C1-C3)
31
Q

What does the Rectus Capitus Anterior Muscle do?

What innervates it?

A 
Flexes Atlantooccipital joint
Anterior Rami (C1-C2)
32
Q

What does the Rectus Capitus Lateralis Muscle do?

What innervates it?

A 
Laterally flexes Atlantooccipital joint
Anterior Rami (C1-C2)

Year 1: 05. Neuro Exam 1 (26 decks)

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