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Anatomy II > Lecture 14 (Exam 2) > Flashcards

Lecture 14 (Exam 2) Flashcards

1
Q

What is the origin of the platysma?

A

SubQ of infraclavicular and supraclavicular regions

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2
Q

What is the insertion of the platysma?

A 
Base of mandible
Skin of cheek
Lower lip 
Angle of mouth
Orbicularis oris
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3
Q

What actions does the platysma perform?

A

Depresses mandible

Tenses skin of inferior face and neck

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4
Q

What is the origin of the occipitofrontalis?

A

Anteriorly from epicranial aponeurosis

Posteriorly from superior nuchal line

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5
Q

What is the insertion of the occipitofrontalis?

A

Epicranial aponeurosis posteriorly

Skin and subQ of eyebrows and forehead anteriorly

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6
Q

What actions does the occipitofrontalis perform?

A

Elevates eyebrows

Protracts scalp

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7
Q

What is the origin of the orbicularis oculi?

A

Orbital margin
Palpebral ligament
Lacrimal bone

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8
Q

What is the insertion of the orbicularis oculi?

A

Skin around margin of orbit

Tarsal plates

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9
Q

What actions does the orbicularis oculi perform?

A

Closes eyelids

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10
Q

What is the origin of the procerus?

A

Facial aponeurosis

Lateral nasal cartilages

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11
Q

What is the insertion of the procerus?

A

Skin between eyebrows

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12
Q

What actions does the procerus perform?

A

Depresses medial sides of eyebrows

Wrinkles skin over dorsum of nose

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13
Q

What is the origin of the nasalis?

A

Frontal processes of maxillae

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14
Q

What is the insertion of the nasalis?

A

Alar cartilage

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15
Q

What actions does the nasalis perform?

A

Depresses alae laterally

Dilates anterior nasal aperture

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16
Q

What is the origin of the orbicularis oris?

A

Medial maxilla and mandible

Deep surface of skin around mouth

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17
Q

What is the insertion of the orbicularis oris?

A

Mucosa of lips

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18
Q

What actions does the orbicularis oris perform?

A

Closes oral fissure

Compresses and protrudes lips

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19
Q

What is the origin of the levator labii superioris?

A

Infraorbital margin

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20
Q

What is the insertion of the levator labii superioris?

A

Skin of upper lip

21
Q

What actions does the levator labii superioris perform?

A

Part of dilators of mouth

22
Q

What is the origin of the zygomaticus minor?

A

Anterior part of zygomatic bone

23
Q

What is the insertion of the zygomaticus minor?

A

Skin of upper lip

24
Q

What actions does the zygomaticus minor perform?

A

Part of dilators of mouth

25
Q

What is the origin of the zygomaticus major?

A

Lateral part of zygomatic bone

26
Q

What is the insertion of the zygomaticus major?

A

Angle of mouth

27
Q

What actions does the zygomaticus major perform?

A

Elevates labial commissures (corner of mouth)

28
Q

What is the origin of the risorius?

A

Parotid fascia

Buccal skin

29
Q

What is the insertion of the risorius?

A

Angle of mouth

30
Q

What actions does the risorius perform?

A

Depresses labial commissures (corner of mouth)

31
Q

What is the origin of the depressor anguli oris?

A

Anterolateral base of mandible

32
Q

What is the insertion of the depressor anguli oris?

A

Angle of mouth

33
Q

What actions does the depressor anguli oris perform?

A

Depresses labial commissures (corner of mouth)

34
Q

What is the origin of the depressor labii inferioris?

A

Platysma

Anterolateral body of mandible

35
Q

What is the insertion of the depressor labii inferioris?

A

Skin of lower lip

36
Q

What actions does the depressor labii inferioris perform?

A

Mouth dilator

Depresses and everts lower lip

37
Q

This artery of the face is a branch of the external carotid artery. It winds around the lower border of the mandible and becomes superficial.

A

Facial artery

38
Q

The facial artery passes (LATERALLY/MEDIALLY) to the angle of the mouth.

A

Laterally

39
Q

What are the branches of the facial artery?

A

Superior and inferior labial arteries
Lateral nasal artery
Angular artery

40
Q

This artery of the face is a terminal branch of the external carotid artery. It emerges between the temporomandibular joint (TMJ) and auricle and enters the temporal fossa.

A

Superficial temporal artery

41
Q

The superficial temporal artery divides into ________ and ________ branches.

A

Frontal

Parietal

42
Q

This artery of the face arises from the superficial temporal artery. It crosses the face superficial to masseter muscle and anastomoses with the facial artery.

A

Transverse facial artery

43
Q

What do the branches of the transverse facial artery supply?

A

Parotid gland
Masseter muscle
Skin of face

44
Q

Sensory innervation of the face is via the _________ nerve (CN ____).

A

Trigeminal

V

45
Q

What are the three branches of the trigeminal nerve (CN V)?

A

Ophthalmic (V1)
Maxillary (V2)
Mandibular (V3)

46
Q

What are the other sensory nerves of the face?

A

Greater occipital nerve
Lesser occipital nerve
Great auricular nerve (Cervical plexus)

47
Q

The _______ nerve (CN _____) is the primary motor nerve to muscles of facial expression.

A

Facial

VII

48
Q

The facial nerve (CN VII) supplies muscle derived from the second ________ ________.

A

Pharyngeal arch (Hyoid arch)

49
Q

What are the branches of the facial nerve (CN VII)?

A 
Temporal 
Zygomatic
Buccal
Mandibular
Cervical

Anatomy II (11 decks)

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