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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
Q

What are the muscles of the posterior triangle?

A

sternocleidomastoid, trapezius, anterior scalen, middle scalene, posterior scalene, levator scapulae

26
Q

What is the origin and insertion of the anterior scalene?

A

Origin: transverse processes of cervical vertebrae

Insertion: 1st rib

27
Q

What is the origin and insertion of the posterior scalene?

A

Origin: transverse processes of cervical vertebrae

Insertion: 1st rib

28
Q

What is the origin and insertion of the posterior scalene?

A

origin: transverse processes of cervical vertebrae
insertion: 2nd rib

29
Q

What is the origin and insertion of the levator scapulae?

A

origin: C1-C4 transverse processes

Insertion: medial border of the scapula, above the spine

30
Q

What is the innervation of the anterior scalene?

A

ventral rami of the cervical plexus

31
Q

What is the innervation of the middle scalene?

A

ventral rami of the cervical plexus

32
Q

What is the innervation of the posterior scalene?

A

ventral rami of the cervical plexus

33
Q

What is the innervation of the levator scapulae?

A

dorsal scapular nerve

34
Q

What is the action of anterior scalene?

A

laterally bends the neck

elevates the 1st rib

35
Q

Action of the middle scalene

A

laterally bends the neck

elevate the 1st rib

36
Q

action of the posterior scalene

A

laterally bend neck

elevate 2nd rib

37
Q

action of the levator scapulae

A

moves shoulder girdle

38
Q

What are the pharyngeal constrictors?

A

superior constrictor, middle constrictor, inferior constrictor

39
Q

What is the origin and insertion of hte superior constrictor?

A

origin: lower posterior border of medial pterygoid plate, hamulus, mylohyoid line of mandible, and intervening pteryogomandibular raphe
insertion: pharyngeal tubercle and pharyngeal raphe

40
Q

What is the origin and insertion of the middle constrictor?

A

Origin: lesser and greater horns of hyoid and loer portion of stylohoid ligament

Insertion: pharyngeal raphe

41
Q

What is the origin and insertion of the inferior constrictor?

A

origin: oblique line of thyroid cartilage, cricoid carilage, tendinous arch between them
insertion: pharyngeal raphe

42
Q

What is the innervations and actions for the pharyngeal constrictor muscles?

A

CN X, pharyngeal branches

constrict pharynx

43
Q

What are the longitudinal muscles of the pharynx?

A

stylopharyngeus, salpingopharyngeus, palatopharyngeus

44
Q

What is the origin and insertion of the stylopharyngeus?

A

origin: styloid process
insertion: superior border and superior horn of thyroid cartilage; lateral pharyngeal wall

45
Q

What is the origin and insertion of the salpingopharyngeus?

A

origin: inferomedial end of auditory tube
insertion: blends with palatopharyngeus in lateral pharyngeal wall

46
Q

What is the origin and insertion of the palatopharyngeus?

A

origin: posterior margin of hard palate, palatine aponeurosis
insertion: posterior border of thyroid cartilage and lateral wall of pharynx

47
Q

What is the innervation of the stylopharyngeus?

A

CN IX, pharyngeal branches

48
Q

What is the innervation of the salpingopharyngeus?

A

CN X, pharyngeal branches

49
Q

What is the innervation of the palatopharyngeus?

A

CN X and pharyngeal branches

50
Q

What is the action of the sylopharyngeus?

A

elevate pharynx

51
Q

What is the action of the salpingopharyngeus?

A

elevate pharynx

52
Q

What is the action of the palatopharyngeus?

A

elevate pharynx and close oropharyngeal isthmus

Muscle Tables (12 decks)

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