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Clinical Anatomy > Head and Neck Muscles > Flashcards

Head and Neck Muscles Flashcards

(72 cards)

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1
Q

Action of Digastric

A

Depresses mandible against resistance

Elevates and steadies hyoid during swallowing and speaking

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2
Q

Action of Geniohyoid

A

Pulls hyoid anteriorly and superiorly; shortens floor of mouth; widens pharynx

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3
Q

Action of Masseter

A

Elevates mandible, closing jaw; superficial fibers make limited contribution to protusion of mandible

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3
Q

Action of Longus Colli

A

Flexes neck with rotation to opposite side (torsion) if acting unilaterally

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3
Q

Action of Longus Capitis, Rectus Capitis Anterior and Anterior Scalene

A

Head flexion

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4
Q

Action of Rectus Capitis Lateralis

A

Flexion and stability of head

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4
Q

Action of Middle Scalene

A

Lateral flexion of neck, elevates 1st rib during forced inspiration

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4
Q

Action of Mylohyoid

A

Elevates hyoid, floor of mouth, and tongue during speaking and swallowing

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4
Q

Action of Omohyoid

A

Depresses, retracts, and steadies hyoid

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5
Q

Action of Splenius Capitis

A

Ipsilateral flexion of neck and bilateral extension of vertebral column and head

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6
Q

Action of Sternocleidomastoid

A

Lateral flexion of neck and rotates face towards opposite side. Extends neck at atlantooccipital joints, flexes cervical vertebrae so chin approaches manubrium, assists in chin protrusion and pump handle action of deep respiration

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7
Q

Action of Sternohyoid

A

Depresses hyoid after elevation during swallowing

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7
Q

Action of Sternothyroid

A

Depresses hyoid and larynx

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8
Q

Action of Temporalis

A

Elevates mandible, closing jaw; posterior, more horizontal fibers are primary retractors of mandible

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8
Q

Action of Stylohyoid

A

Elevates AND retracts the hyoid, elongating the floor of the mouth

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9
Q

Action of Thyrohyoid

A

Depresses hyoid and elevates larynx

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10
Q

Innervation of Anterior Belly of Digastric

A

Inferior alveolar nerve via Mandibular nerve (V3)

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11
Q

Innervation of Anterior Scalene

A

Spinal nerves C4-C6

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12
Q

Innervation of Geniohyoid

A

CI spinal nerve via hypoglossal nerve (XII)

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13
Q

Innervation of Longus Capitis

A

Anterior rami of C1-C3

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14
Q

Innervation of Mylohyoid

A

Inferior alveolar nerve via Mandibular nerve (V3)

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14
Q

Innervation of Longus Colli

A

Anterior rami of C2-C6

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14
Q

Innervation of Middle Scalene

A

Anterior rami of C4-C6

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15
Q

Innervation of Omohyoid

A

Ansa Cervicalis (C1-C3)

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16
Innervation of Posterior Belly of Digastric
Digastric branch of facial nerve (VII)
17
Innervation of Posterior Scalene
Branches of Spinal Nerves C4-C6
18
Innervation of Rectus Capitis Anterior
Branches from loop between C1-C2
19
Innervation of Rectus Capitis Lateralis
Branches from loop between C1-C2
19
Innervation of Sternocleidomastoid
Accessory Nerve (CN XI), C2 and C3 for pain and proprioception
20
Innervation of Sternohyoid
Ansa Cervicalis (C1-C3)
21
Innervation of Sternothyroid
Ansa Cervicalis (C1-C3)
22
Innervation of Stylohyoid
Stylohyoid branch of facial nerve (VII)
23
Innervation of Thyrohyoid
C1 via hypoglossal nerve
24
Insertion of Stylohyoid
Body of Hyoid
26
Insertion of Anterior Scalene
1st rib
27
Insertion of Digastric
Intermediate tendon to body and greater horn of hyoid
28
Insertion of Geniohyoid
Body of Hyoid
29
Insertion of Longus Capitis
Anterior tubercles of C3-C6 transverse processes
31
Insertion of Masseter
Angle and lateral surface of mandibular rami
31
Insertion of Longus Colli
Bodies of C5-T3 vertebrae, transverse processes of C3-C5
32
Insertion of Middle Scalene
Superior surface of 1st rib; posterior groove for subclavian artery
34
Insertion of Mylohyoid
Mylohyoid raphe and body of hyoid
35
Insertion of Omohyoid
Inferior border of Hyoid
36
Insertion of Posterior Scalene
External border of 2nd rib
37
Insertion of Rectus Capitis Anterior
Anterior surface of lateral mass of atlas
38
Insertion of Rectus Capitis Lateralis
Transverse process of atlas
39
Insertion of Splenius Capitis
Lateral aspect of mastoid process and lateral 1/3 of superior nuchal line
40
Insertion of Sternocleidomastoid
Sternal head: anterior surface of manubrium of sternum Clavicular head: superior surface of medial 1/3 of clavicle
42
Insertion of Sternohyoid
Body of Hyoid
44
Insertion of Sternothyroid
Oblique line of thyroid cartilage
45
Insertion of Temporalis
Tip and medial surface of coronoid process and anterior border of mandibular ramus
46
Insertion of Thyrohyoid
Inferior border of body and greater horn of Hyoid
47
Main nerve innervating Temporalis, Masseter, Lateral Pterygoid, Medial Pterygoid
Anterior trunk of mandibular nerve (V3)
48
Origin of Anterior Scalene
Transverse processes of C4-C6
49
Origin of Digastric
Anterior Belly: Digastric fossa of mandible Posterior Belly: Mastoid notch of temporal bone
51
Origin of Geniohyoid
Inferior mental spine of mandible
52
Origin of Longus Capitis
Basilar part of occipital bone
54
Origin of Longus Colli
Anterior tubercle of C1 vertebra, bodies of C1-C3 and transverse processes of C3-C6 vertebra
56
Origin of Masseter
Inferior border and medial surface of maxillary process of zygomatic bone and zygomatic arch
58
Origin of Middle Scalene
Posterior tubercles of transverse processes of C4-C6
60
Origin of Mylohyoid
Mylohyoid line of mandible
62
Origin of Omohyoid
Superior border of scapula near suprascapular notch
63
Origin of Posterior Scalene
Posterior tubercles of transverse processes C4-C6
64
Origin of Rectus Capitis Anterior
Base of skull, just anterior to occipital condyle
65
Origin of Rectus Capitis Lateralis
Jugular process of occipital bone
66
Origin of Splenius Capitis
Inferior half of nuchal ligament and spinous processes of C7-T3
67
Origin of Sternocleidomastoid
Lateral surface of mastoid process of temporal bone and lateral half of superior nuchal line
68
Origin of Sternohyoid
Manubrium of sternum and medial end of clavicle
69
Origin of Sternothyroid
Posterior surface of manubrium of sternum
70
Origin of Stylohyoid
Styloid process of temporal bone
71
Origin of Temporalis
Floor of temporal fossa, deep surface of temporal fascia
72
Origin of Thyrohyoid
Oblique line of thyroid cartilage

Clinical Anatomy (7 decks)

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