Muscles of the Neck Flashcards

1
Q

Regions of Neck Musculature (4)

A

SCM region
posterior cervical region
lateral cervical region
anterior cervical region

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2
Q

SCM Region (2)

A

sternocleidomastoid

platysma

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3
Q

Lesser Supraclavicular Fossa

A

space between sternal and clavicular heads of sternocleidomastoid

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4
Q

Posterior Cervical Region (2)

A

trapezius

suboccipital region

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5
Q

Suboccipital Region (4)

A

rectus capitis posterior major
rectus capitis posterior minor
obliquus capitis inferior
obliquus capitis superior

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6
Q

Suboccipital Triangle

A

deep to trapezius and semispinalis capitis
borders: obliquus capitis inferior and superior and rectus capitis posterior major
houses vertebral artery and suboccipital nerve

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7
Q

Lateral Cervical Region (4)

A

splenius capitis
levator scapulae
middle scalene
posterior scalene

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8
Q

Anterior Cervical Region (2)

A

suprahyoid muscles

infrahyoid muscles

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9
Q

Prevertebral Muscles/Deep Structures of Neck (2)

A

anterior vertebral muscles

lateral vertebral muscles

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10
Q

Anterior Vertebral Muscles (4)

A

longus colli
longus capitis
rectus capitis anterior
anterior scalene

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11
Q

Anterior Scalene - I

A

1st rib

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12
Q

Lateral Vertebral Muscles (5)

A
rectus capitis lateralis
splenius capitis
levator scapulae
middle scalene
posterior scalene
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13
Q

Levator Scapulae - O

A

transverse processes of C1-C4

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14
Q

Levator Scapulae - I

A

superior part of medial border of scapula

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15
Q

Levator Scapulae - N

A

dorsal scapular nerve C5

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16
Q

Levator Scapulae - A

A

elevates scapula

tilts glenoid cavity inferiorly by rotating scapula

17
Q

Middle Scalene - O

A

transverse processes of C4-C7

18
Q

Middle Scalene - I

A

1st rib

19
Q

Middle Scalene - N

A

anterior rami of cervical spinal nerves

20
Q

Middle Scalene - A

A

lateral cervical flexion

elevation of 1st rib during forced inspiration

21
Q

Posterior Scalene - O

A

transverse processes of C4-C6

22
Q

Posterior Scalene - I

A

2nd rib

23
Q

Posterior Scalene - N

A

anterior rami of cervical spinal nerves C7 and C8

24
Q

Posterior Scalene - A

A

lateral cervical flexion

elevation of 2nd rib during forced inspiration

25
Q

Suprahyoid Muscles (4)

A

mylohyoid
geniohyoid
stylohyoid
digastric

26
Q

Suprahyoid Muscle Functions

A

substance of floor of mouth and inside mouth under tongue
provide base for tongue functions
help elevate hyoid and larynx for swallowing and tone production

27
Q

Infrahyoid Muscles (4)

A

sternohyoid
omohyoid
sternothyroid
thyrohyoid

28
Q

Infrahyoid Muscle Functions

A

depress hyoid during swallowing and speech

stabilize hyoid for speech and tongue control

29
Q

Unique Design of Digastric and Omohyoid

A

both have 2 bellies and create a pulley system

omohyoid attaches at scapula (sturdier anchor point)

30
Q

Hyoid

A

anterior to C3

no bony attachment - suspended in suprahyoid and infrahyoid muscles