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Anatomy > Head And Neck Muscles > Flashcards

Head And Neck Muscles Flashcards

1
Q

Trapezius

A

Origin: occipital protuberance, ligamentum nuchae, spinous process

Insertion: spine of scapula, acromion, clavicle

Motions: rotational component

Upper fibers:
Bilaterally:
Extend Head and Neck

Unilaterally:
Laterally Flex Head and Neck to Same Side
Rotate Head and Neck to Opposite Side
Scapula Elevation
Scapula Rotational Elevation

Middle Fibers:
Scapula Retraction
Scapula Stabilize

Lower fibers:
Scapula Depression
Scapula Rotational Elevation

Nerve: Accessory (Cranial nerve XI)

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2
Q

Levator Scapula

A

Origin: upper cervical vertebrae

Insertion: medial border of scapula

Motions: 
Unilaterally:
Scapula Elevation
Scapula Rotational Depression
Laterally Flex Head and Neck
Rotate Head and Neck to Same Side

Bilaterally:
Extend Head and Neck

Nerve:
Cervical Nerve, Dorsal Scapular Nerve

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3
Q

Rhomboid Minor

A

Origin: spinous process c7-t1

Insertion:upper portion of medial border of scapula

Motions:
Scapula Elevation
Scapula Retraction
Scapula Rotational Depression

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4
Q

Rhomboid Major

A

Origin: spinous process of T2-T5

Insertion: medial border of scapula

Motions:
Scapula Elevation
Scapula Retraction
Scapula Rotational Depression

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5
Q

Semispinalis Cervicis

A

Action:
Extend Vertebrae
Rotate Vertebrae to Opposite Side

Nerve:
Cervical Nerve

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6
Q

Semispinalis Capitis

A

Action:
Extend Vertebrae
Rotate Vertebrae to Opposite Side

Nerve:
Cervical Nerve

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7
Q

Rectus Capitis Posterior Major

A

Action:
Extend Head(rock and tilt the head back)
Rotate Head to Same Side

Nerve:
Suboccipital Nerve

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8
Q

Rectus Capitis Posterior Minor

A 
Action:
Extend Head(rock and tilt the head back)

Nerve:
Suboccipital Nerve

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9
Q

Oblique Capitis Superior

A

Action:
Extend Head(rock and tilt the head back)
Laterally Flex Head to Same Side

Nerve:
Suboccipital Nerve

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10
Q

Oblique Capitis Inferior

A

Action:
Rotate Head to Same Side

Nerve:
Suboccipital Nerve

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11
Q

Splenius Capitis

A

Action:
Unilaterally:
Rotate Head/Neck to Same Side
Laterally Flex Head/Neckto Same Side

Bilaterally:
Extend Head/Neck

Nerve:
Cervical Nerve

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12
Q

Splenius Cervicis

A

Action:
Unilaterally:
Rotate Head/Neck to Same Side
Laterally Flex Head/Neck to Same Side

Bilaterally:
Extend Head/Neck

Nerve:
Cervical Nerve

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13
Q

Platysma

A

Action:
Depress Mandible(TM joint)
Tighten Fascia of Neck
Draw Down Corner of Mouth

Nerve:
Facial Nerve

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14
Q

Longus Capitis

A

Action:
Unilaterally:
Laterally Flex Head/Neck to Same Side
Rotate Head/Neck to Same Side

Bilaterally:
Flex Head/Neck

Nerve:
C1, 2, 3 (4)

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15
Q

Longus Colli

A

Action:
Unilaterally:
Laterally Flex Head/Neck to Same Side
Rotate Head/Neck to Same Side

Bilaterally:
Flex Head/Neck

Nerve:
C2-6 (7)

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16
Q

Scalenes (Anterior, Middle and Posterior Scalene)

A

All Scalenes:
Unilaterally:
Laterally Flex Head/Neck to Same Side
Rotate Head/Neck to Opposite Side

Bilaterally:
Elevates Ribs during Inhalation

Anterior Scalene
Flex Head/Neck

Nerve:
C(3), 4-8

17
Q

Sternocleidomastoid

A

Actions:
Unilaterally:
Laterally Flex Head/Neck to Same Side
Rotate Head/Neck to Opposite Side

Bilaterally:
Flex Neck
Elevate Ribs during Inhalation

Nerve:
Spinal Accessory Nerve C(1) 2,3

18
Q

Masseter

A

Action:
Elevate Mandible
Protract Mandible

Nerve:
Trigeminal Nerve

19
Q

Temporalis

A

Action:
Elevate Mandible
Retract Mandible

Nerve:
Trigeminal Nerve

20
Q

Medial Pterygoid

A

Action:
Unilaterally:
Laterally Deviate Mandible to Opposite Side

Bilaterally:
Elevate Mandible
Protract Mandible

Nerve:
Trigeminal Nerve

21
Q

Lateral Pterygoid

A

Action:
Unilaterally:
Laterally Deviate Mandible to Opposite Side

Bilaterally:
Protract Mandible

Nerve:
Trigeminal Nerve

22
Q

Digastric

A

Action:
Depress Mandible
Elevate Hyoid Bone
Retract Mandible

Nerve:
Anterior Belly: Trigeminal Nerve
Posterior Belly: Facial Nerve

23
Q

Genioglossus

A

Action:
Protrusion and depression of tongue

Nerve: Hypoglossal nerve

24
Q

Hyoglossus

A

Action:
Depresses Tongue
Retracts Tongue

Nerve:
Hypoglossal Nerve

25
Q

Styloglossus

A

Action:
Retracts and elevates tongue, aids initiation of swallowing

Nerve:
Hypoglossal Nerve

26
Q

palatoglossus

A

Action:
Elevates the Posterior Part of Tongue, aids initiation of swallowing.
Nerve:
Vagus Nerve

Anatomy (26 decks)

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