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Muscle Tables > Anterior/posterior triangle and pharyngeal > Flashcards

Anterior/posterior triangle and pharyngeal Flashcards

1
Q

What are the superficiial muscles of the neck?

A

sternocleidomastoid, trapezius, anterior and posterior bellies of the digastric muscle

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2
Q

What is the origin and insertion of the sternocleidomastoid muscle?

A

Origin: manubrium of sternu and medial 1/3 of the clavicle

Insertion: lateral aspect of mastoid process of the temporal bone

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3
Q

What is the origin and insertion of the trapezius muscle?

A

origin: external occipital protuberance of the skull, C1-12 spinous processes
insertion: clavicle, acromion, scapular spine

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4
Q

What is the origin and insertion of the digastric muscle anterior and posterior bellies?

A

Origin of anterior belly: digastric fossa of mandible

Insertion of anterior belly: digastric tendon of hyoid bone

Origin of posterior belly: mastoid process

Insertion of posterior belly: digastric tendon of hyoid bone

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5
Q

What is the innervation of the sternocleidomastoid?

A

CN XI

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6
Q

What is the innervation of the trapezius?

A

subtrapezial nerve plexus (CN XI and C3/C4 ventral rami)

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7
Q

What is the innervation of the anterior belly of the digastric muscle?

A

mylohyoid nerve

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8
Q

What is the innervation of the posterior belly of the digastric muscle?

A

CN VII (Facial N.)

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9
Q

What are the actions of the sternocleidomastoid?

A

Rotates the head opposite the contracted side

Laterally flexes the neck to the contracted side

Bilaterally flexes the neck

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10
Q

What is the action of the trapezius?

A

moves shoulder girdle

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11
Q

What is the action of the anterior belly of the digastric muscle?

What is the action of the posterior belly of the digastric muscle?

A

lowers mandilbe or raises hyoid

elevates and retracts hyoid

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12
Q

What are the muscles of the muscular subdivision of the anterior triangle or the infrahyoid muscles?

A

omohyoid, sternohyoid, sternothyroid, thyrohyoid

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13
Q

What is the origin and insertion of the omohyoid?

A

Origin: medial margin of the suprascapular notch

Insertion: hyoid bone

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14
Q

What is the origin and insertion of the sternohyoid?

A

origin: manubrium of the sternum
insertion: hyoid bone

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15
Q

What is the origin and insertion of the sternothyroid?

A

origin: manubrium of the sternum
insertion: oblique line of the thyroid cartilage

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16
Q

What is the origin and insertion of the thyrohyoid?

A

origin: oblique line of the thyroid cartilage
insertion: hyoid bone

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17
Q

What is the innervation of the omohyoid?

A

C1-C3 via ansa cervicalis

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18
Q

What is the innervation of the sternohyoid?

A

C1-C3 via ansa cervicalis

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19
Q

What is the innervation of the sternothyroid?

A

C1-C3 via ansa cericalis

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20
Q

What is the innervation of the thyrohyoid?

A

C1 branch traveling with CN XII

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21
Q

What is the action of the omohyoid?

A

depresses and fixes the hyoid

22
Q

What is the action of the sternohyoid?

A

depresses hyoid

23
Q

What is the action of the sternothyroid?

A

depresses the larynx

24
Q

What is the action of the thyrohyoid?

A

depresses hyoid or raises larynx

25
What are the muscles of the posterior triangle?
sternocleidomastoid, trapezius, anterior scalen, middle scalene, posterior scalene, levator scapulae
26
What is the origin and insertion of the anterior scalene?
Origin: transverse processes of cervical vertebrae Insertion: 1st rib
27
What is the origin and insertion of the posterior scalene?
Origin: transverse processes of cervical vertebrae Insertion: 1st rib
28
What is the origin and insertion of the posterior scalene?
origin: transverse processes of cervical vertebrae insertion: 2nd rib
29
What is the origin and insertion of the levator scapulae?
origin: C1-C4 transverse processes Insertion: medial border of the scapula, above the spine
30
What is the innervation of the anterior scalene?
ventral rami of the cervical plexus
31
What is the innervation of the middle scalene?
ventral rami of the cervical plexus
32
What is the innervation of the posterior scalene?
ventral rami of the cervical plexus
33
What is the innervation of the levator scapulae?
dorsal scapular nerve
34
What is the action of anterior scalene?
laterally bends the neck elevates the 1st rib
35
Action of the middle scalene
laterally bends the neck elevate the 1st rib
36
action of the posterior scalene
laterally bend neck elevate 2nd rib
37
action of the levator scapulae
moves shoulder girdle
38
What are the pharyngeal constrictors?
superior constrictor, middle constrictor, inferior constrictor
39
What is the origin and insertion of hte superior constrictor?
origin: lower posterior border of medial pterygoid plate, hamulus, mylohyoid line of mandible, and intervening pteryogomandibular raphe insertion: pharyngeal tubercle and pharyngeal raphe
40
What is the origin and insertion of the middle constrictor?
Origin: lesser and greater horns of hyoid and loer portion of stylohoid ligament Insertion: pharyngeal raphe
41
What is the origin and insertion of the inferior constrictor?
origin: oblique line of thyroid cartilage, cricoid carilage, tendinous arch between them insertion: pharyngeal raphe
42
What is the innervations and actions for the pharyngeal constrictor muscles?
CN X, pharyngeal branches constrict pharynx
43
What are the longitudinal muscles of the pharynx?
stylopharyngeus, salpingopharyngeus, palatopharyngeus
44
What is the origin and insertion of the stylopharyngeus?
origin: styloid process insertion: superior border and superior horn of thyroid cartilage; lateral pharyngeal wall
45
What is the origin and insertion of the salpingopharyngeus?
origin: inferomedial end of auditory tube insertion: blends with palatopharyngeus in lateral pharyngeal wall
46
What is the origin and insertion of the palatopharyngeus?
origin: posterior margin of hard palate, palatine aponeurosis insertion: posterior border of thyroid cartilage and lateral wall of pharynx
47
What is the innervation of the stylopharyngeus?
CN IX, pharyngeal branches
48
What is the innervation of the salpingopharyngeus?
CN X, pharyngeal branches
49
What is the innervation of the palatopharyngeus?
CN X and pharyngeal branches
50
What is the action of the sylopharyngeus?
elevate pharynx
51
What is the action of the salpingopharyngeus?
elevate pharynx
52
What is the action of the palatopharyngeus?
elevate pharynx and close oropharyngeal isthmus

Muscle Tables (12 decks)

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