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V.ANAT 121 > Muscles of the Head > Flashcards

Muscles of the Head Flashcards

1
Q

*MUSCLES OF THE HEAD

this muscle extends from the transverse process of the 6th cervical vertebra to the basioccipital bone

A

longus capitis

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2
Q

*MUSCLES OF THE HEAD

extends from the ventral arch of atlas to the basioccipital bone

A

rectus capitis ventralis

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3
Q

*MUSCLES OF THE HEAD

extends from the wing of the atlas to the medial surface of the paracondylar process

**muscles 1 – 3 flex the atlanto-occipital joint

A

rectus capitis lateralis

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4
Q

*MUSCLES OF THE HEAD

situated between the spine of the axis to the squamous part of the occiput

A

rectus capitis dorsalis major

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5
Q

*MUSCLES OF THE HEAD

extends from the dorsal arch of atlas and inserts above the foramen magnum

** muscles 4 – 5 extend the atlanto-occipital joint

A

rectus capitis dorsalis minor

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6
Q

*MUSCLES OF THE HEAD

covers the atlas and axis dorsally; lies beneath the semispinalis capitis and splenius mm; arises over the entire spinous process and the caudal articular rotation and fixation of the atlantoaxial joint

A

obliquus capitis caudalis

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7
Q

*MUSCLES OF THE HEAD

extends obliquely craniolaterally over the atlanto occipital joint; lies under the splenius muscle; extends the atlanto-occipital joint

A

obliquus capitis cranialis

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8
Q

*MUSCLES OF THE FACE

located on the alveolar borders of the bones containing the incisors; they raise and depress the respective lips

A

incisivus maxillaris and incisivus mandibularis

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9
Q

*MUSCLES OF THE FACE

considered as part of sphincter colli profundus; lies in the lips and is the sphincter muscle of the mouth

A

orbicularis oris

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10
Q

*MUSCLES OF THE FACE

lie next to each other like 2 parts of a single muscle; the former is located dorsal and arises near the infraorbital foramen while the latter is ventrally located. Both of these muscles are under cover of the levator nasolabialis; together they dilate the nostril and raise the upper lip

A

levator labii maxillaris and caninus

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11
Q

*MUSCLES OF THE FACE

forms the cheek; it has a buccal and molar parts; its contraction causes the cheek to move medially

A

buccinator muscle

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12
Q

*MUSCLES OF THE FACE

has fibers radiating into the lower lip from the body of the mandible; it stiffens the lower lip

A

mentalis

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13
Q

*MUSCLES OF THE FACE

fibers ascending to the lower eyelid to depress it

A

malaris

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14
Q

*MUSCLES OF THE FACE

pulls caudad the angle of the mouth

A

zygomaticus

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15
Q

*MUSCLES OF THE FACE

sphincter of the eyelids; the dorsal portion is continous with frontalis

A

orbicularis oculi

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16
Q

*MUSCLES OF THE FACE

extends from jugular/paracondylar process of the occiput, inserts on the ventral border of mandible; depresses the mandible

A

digastricus

17
Q

*MUSCLES OF MASTICATION

forms a prominent bulge on the lateral surface of the vertical part of the mandible; arises from the zygomatic arch to the masseteric fossa

A

masseter

18
Q

*MUSCLES OF MASTICATION

very large, bulging muscle, which occupies the entire temporal fossa and inserts on the coronoid process of the mandible

A

temporalis

19
Q

*MUSCLES OF MASTICATION

occupies the pterygopalatine fossa, arises from
pterygoid and palatine and inserts on the medial and caudal surfaces of the angular process of the mandible

A

pterygoideus medialis

20
Q

*MUSCLES OF MASTICATION

arises from sphenoid bone; inserts on the medial surface of the condyle of the mandible

A

pterygoideus lateralis

21
Q

*EXTRINSIC MUSCLES OF THE TONGUE

retracts the tongue

A

styloglossus

22
Q

*EXTRINSIC MUSCLES OF THE TONGUE

depress and protrude the tongue; lies within intermandibular space and beneath the tongue

A

genioglossus

23
Q

*EXTRINSIC MUSCLES OF THE TONGUE

retracts and depress the tongue; located at the root of the tongue

A

hypoglossus

24
Q

*INTRINSIC MUSCLE OF THE TONGUE

many muscular bundles arranged longitudinally, transversely, and vertically; protrude tongue; move tongue to prevent it from being bitten; organ of taste

A

lingua propria

25
Q

EXTRINSIC MUSCLE OF PHARYNX (6)

A
  1. Hyopharyngeus
  2. Thyropharyngeus
  3. Cricopharyngeus
  4. Palatopharyngeus
  5. Pterygopharyngeus
  6. Stylopharyngeus caudalis
26
Q

*EXTRINSIC MUSCLE OF PHARYNX

  • ceratopharyngeus
  • Chondropharyngeus
A

Hyopharyngeus

27
Q

*EXTRINSIC MUSCLE OF PHARYNX

  • Muscles 1 – 3 are constrictors of pharynx; innervated by vagus nerve
A

Cricopharyngeus

28
Q

*EXTRINSIC MUSCLE OF PHARYNX

  • Muscles 4 -5 constrict the pharynx and draw it rostrad; innervated by vagus nerve
A

Pterygopharyngeus

29
Q

*EXTRINSIC MUSCLE OF PHARYNX

dilates and elevates the pharynx; innervated by glossopharyngeal nerve

A

Stylopharyngeus caudalis

30
Q

*MUSCLES OF SOFT PALATE

arises from the muscular process of the rostral margin of the tympanic bulla going to the hamulus of the pterygoid bone; tenses the soft palate; innervated by mandibular nerve

A

tensor veli palatine

31
Q

*MUSCLES OF SOFT PALATE

arises from the muscular process adjacent to the
tympanic bulla and inserts on the caudal half of the soft palate lateral to the palatinus m; raises the caudal portion of soft palate; innervated by vagus nerve

A

levator veli palatine

32
Q

*MUSCLES OF SOFT PALATE

constitutes most of the soft palate, arises from the palatine process of the palatine bone to the caudal free border of the soft palate; innervated by vagus nerve

A

palatinus

33
Q

tenses the vocal folds; innervated by cranial laryngeal branch of vagus nerve

A

cricothyroideus

34
Q

abducts the arytenoid cartilage

A

cricoarytenoideus dorsalis

35
Q

relaxes the vocal folds by pulling the arytenoid cartilage ventrally

A

thyroarytenoideus

36
Q

relaxes vocal folds

A

vocalis

37
Q

dilates the saccule or lateral ventricle

A

ventricularis

38
Q

adducts the vocal folds

A

arytenoideus transversus

39
Q

NOTE: *muscles 2 – 6 are innervated by the recurrent laryngeal branch of the vagus nerve

*vocal folds – folds of mucous membrane in the larynx that vibrate to produce sounds

A

NOTE: *muscles 2 – 6 are innervated by the recurrent laryngeal branch of the vagus nerve

*vocal folds – folds of mucous membrane in the larynx that vibrate to produce sounds

V.ANAT 121 (35 decks)

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