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AIM - The Brain > muscles > Flashcards

muscles Flashcards

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The Brain flashcards
1
Q

platysma (N, A most important)

A

O: deep fascia covering pec major and deltoid

I: lower margin of body of mandible/blends with risoreus/below chin

N: cervical branch of facial nerve (CN VII)

A: depresses mandible, draws down lower lip and angle of mouth

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2
Q

trapezius (A, N)

A

A: SUP- elevates, upwardly rotates scapula // MIDDLE- retracts scapula // INF- depresses scapula, rotates scapula superiorly

N: spinal accessory n (CN XI)

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3
Q

sternocleidomastoid

A

O: upper part of manubrium, middle 1/3 of clavicle

I: mastoid process, lateral part of superior nuchal line

N: spinal accessory n (CN XI), ventral rami of C2-C3 (proprioceptive)

A: together- flex head at atlanto-occipital joint, flex cervical part of vertebral column
separate- moves face to opposite side

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4
Q

scalene muscles

A

O: transverse tubercles of cervical vertebrae

I: 1st/2nd rib (middle,anterior/posterior)

A: laterally bend neck, elevate 1st/2nd rib during heavy respiration

N: motor branches of cervical/brachial plexus

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5
Q

longus colli

A

I: attach to adjacent cervical vertebrae

A: flex cervical column

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6
Q

longus capitus

A

O: base of occipital bone

I: transverse processes of cervical vertebrae

A: flexes skull on C1

N: dorsal rami of cervical nerves

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7
Q

splenius capitus

A

A: extends skull on cervical column, laterally bends/rotates to same side

I: dorsal rami of cervical nerves

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8
Q

levator scapulae

A

O: transverse processes of C1-C4

A: elevates scapula

N: dorsal scapular n.

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9
Q

semispinalis capitus

A

A: extends head and spinal column

N: dorsal rami of cervical nerves

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10
Q

obliquius capitus (superior/inferior)

A

A: extend head, tilt head to same side, rotate head (inf=same side, sup=opposite side)

N: suboccipital n. (C1)

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11
Q

rectus capitis posterior (maor/minor)

A

A: extend head, tilt to same side, rotation (major=same side, minor = opposite side)

N: suboccipital n (C1)

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12
Q

mylohyoid

A

N: nerve to mylohyoid (branch of inferior alveolar n - CN V3)

A: elevates hyoid, depresses mandible

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13
Q

geniohyoid

A

N: C1 via hypoglossal n (CN XII)

A: pulls hyoid superiorly

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14
Q

stylohyoid

A

N: branch of facial nerve (CN VII)

A: elevates, retracts hyoid

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15
Q

digastric, anterior belly

A

N: nerve to mylohyoid

A: depresses mandible

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16
Q

digastric, posterior belly

A

N: branch of facial n (CN VII)

A: elevates hyoid

17
Q

sternohyoid

A

N: ansa cervicalis

A: depresses hyoid

18
Q

sternothyroid

A

N: ansa cervicalis

A: depresses thyroid cartilage

19
Q

omohyoid

A

N: ansa cervicalis

A: depresses/retracts hyoid

20
Q

thyrohyoid

A

N: C1 via hypoglossal

A: depresses hyoid, elevates thyroid cartilage

21
Q

branches of external carotid artery

A

SALFOPSMax

Superior thyroid
Ascending pharyngeal
Lingual
Facial
Occipital
Posterior Auricular
Superficial temporal
Maxillary
22
Q

occipito-frontalis muscle

A

facial n (CN VII)

23
Q

temporalis muscle

A

mandibular branch of trigeminal (CN V3)

24
Q

muscles innervated by CN III

A 
Superior rectus
Inferior rectus
Medial rectus
Inferior oblique
Levator palpebrae superioris
25
Q

muscles innervated by trochlear n (CN IV)

A

superior oblique m

medial rotation of eye

26
Q

muscles innervated by abducens n (CN VI)

A

lateral rectus m

abduct eye

27
Q

massester muscle

A

mandibular division trigeminal (CN V3)

28
Q

lateral/medial pterygoid

A

mandibular division trigeminal (CN V3)

29
Q

myelohyoid

A

mandibular division trigeminal (CN V3)

30
Q

tensor veli palatini

A

mandibular division trigeminal (CN V3)

[swallowing]

31
Q

tensor tympani

A

mandibular division trigeminal (CN V3)

[dampen sound of chewing]

32
Q

pharyngeal constrictors

A

Vagus (CN X)

33
Q

laryngeal muscles

A

Vagus (CN X)

34
Q

(most) palatal muscles

A

Vagus (CN X)

35
Q

hypoglossus muscle

A

hypoglossal n (CN XII)

36
Q

genioglossus m.

A

hypoglossal n (CN XII)

37
Q

styloglossus m.

A

hypoglossal n (CN XII)

38
Q

palatoglossus m.

A

Vagus (CN X)

AIM - The Brain (105 decks)

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