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Spinal Anatomy -- Morter > Spinal Final: Sec. XV: Ext. Ear, Parotid, Temporal, Infratemporal, TMJ, Ext. Nose, Mouth Regions > Flashcards

Spinal Final: Sec. XV: Ext. Ear, Parotid, Temporal, Infratemporal, TMJ, Ext. Nose, Mouth Regions Flashcards

1
Q

What is the cymba concha of the external ear?

A

the part of the concha b/w the helix and the inferior crus of the antihelix

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2
Q

What is the name given to the “goat’s beard” of the auricle?

A

tragus

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3
Q

What is the name given tot he palpable posterior projection corresponding to the triangular fossa of the auricle?

A

eminentia triangularis

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4
Q

What is the name given to the palpable posterior projection corresponding to the concha of the auricle?

A

eminentia concha

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5
Q

What is the name of the palpable posterior projection of the eminentia concha of the auricle?

A

ponticulus

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6
Q

Identify the extrinsic muscles of the auricle?

A

the anterior auricular, superior auricular, posterior auricular, and temporoparietalis

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7
Q

What is the innervation of the extrinsic muscles of the auricle?

A

posterior auricular and temporal branches of the facial nerve

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8
Q

Which branches of the external carotid artery supply the auricle?

A

occipital, posterior auricular, superficial temporal arteries….”OPS”

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9
Q

Sensory innervation of the auricle is derived from which nerves?

A
  • greater auricular (ventral rami C2, C3)
  • lesser occipital nerve (ventral rami C2, possibly C3)
  • auriculotemporal nerve (mandibular division, trigeminal)
  • posterior auricular cutaneous nerve (facial)
  • auricular nerve (vagus)
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10
Q

The external acoustic meatus lies between what boundaries?

A

concha of the auricle and the tympanic membrane of the middle ear

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11
Q

What part of the external acoustic meatus is protected by cartilage?

A

lateral one third

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12
Q

The medial part of the external acoustic meatus is protected by?

A

the temporal bone

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13
Q

What part of the external acoustic meatus is protected by bone?

A

the medial two thirds

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14
Q

Skin lining the external acoustic meatus contains what modified sebaceous glands?

A

ceruminous glands

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15
Q

What is cerumen?

A

the product of ceruminous glands forming the bulk of ear wax

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16
Q

Vascularization of the external acoustic meatus is derived from which branch(es) of the external carotid artery?

A

posterior auricular artery, internal maxiallary artery, superficial temporal artery…..”PIS”

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17
Q

What is the posterior boundary of the parotid region?

A

the extrenal acoustic meatus, styloid process, and mastoid process

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18
Q

What vein is formed within the parotid gland?

A

the retromandibular vein

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19
Q

What are the branches of the facial nerve plexus?

A

temporal, zygomatic, buccal, marginal mandibular, and cervical branches

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20
Q

What branch of the facial nerve penetrates the parotid gland, but is not given off within it?

A

the chorda tympani nerve

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21
Q

What branches of the mandibular division of the trigeminal nerve are given off within the parotid gland?

A

the auriculotemporal and lingual nerves

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22
Q

What cranial nerves will be utilized in parasympathetic innervation of the parotid gland?

A

the glossopharyngeal and trigeminal nerves

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23
Q

Parasympathetic efferent fibers from the ninth CN will synapse in which ganglion?

A

otic ganglion of Arnold’s ganglion

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24
Q

The parasympathetic pathway from the ninth CN will innervate what target?

A

parotid gland

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25
Q

Which branches/divisions of the trigeminal nerve will carry parasympathetic efferent fibers?

A

all three - the ophthalmic, maxillary, and mandibular branches/divisions

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26
Q

What is the superior boundary for the temporal region?

A

temporal lines of the parietal and frontal bones

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27
Q

What forms the floor of the temporal region?

A

pterion (sphenoid, parietal, temporal, frontal bones)

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28
Q

What is the major feature of the temporal region?

A

temporalis muscle

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29
Q

The temporalis muscle is innervated by which specific branch(es) of the trigeminal nerve?

A

anterior and posterior deep temporal nerves (mandibular division)

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30
Q

Sensory information from the temporalis muscle is carried in the trigeminal nerve to neurons in what nucleus (of termination)?

A

the mesencephalic nucleus

31
Q

What forms the superior boundary of the infratemporal region?

A

greater wing of the sphenoid bone

32
Q

What forms the anterior boundary of the infratemporal region?

A

infratemporal surface of maxilla

33
Q

What forms the medial boundary of the infratemporal region?

A

lateral pterygoid plate of the sphenoid

34
Q

What forms the lateral boundary of the infratemporal region?

A

ramus of the mandible

35
Q

What are the contents of the infratemporal region?

A
  • medial and lateral pterygoid muscles,
  • internal maxillary artery and branches,
  • pterygoid venous plexus,
  • internal maxillary vein,
    branches of the trigeminal and facial nerves
  • and the otic ganglion
36
Q

Identify the muscles of mastication.

A

temporalis, masseter, medial pterygoid, lateral pterygoid

37
Q

The masseter muscle is innervated by which branch(es) of the trigeminal nerve?

A

masseteric nerve, mandibular division

38
Q

The lateral pterygoid muscle is innervated by which branch(es) of the trigeminal nerve?

A

lateral pterygoid nerve, mandibular division

39
Q

The medial pterygoid muscle is innervated by which branch(es) of the trigeminal nerve?

A

medial pterygoid nerve, mandibular division

40
Q

Sensory information from the masseter, medial pterygoid, and lateral pterygoid muscles is carried in the trigeminal nerve to neurons in what nucleus (of termination)?

A

the mesencephalic nucleus

41
Q

Which parasympathetic ganglion is located in the infratemporal region?

A

the otic ganglion

42
Q

The otic ganglion is part of the neural pathway to what target organ?

A

the parotid gland

43
Q

Which CN contains the nucleus of origin for the parasympathetic pathway to the parotid gland?

A

the glossopharyngeal nerve

44
Q

What are the attachment sites of the stylomandibular ligament?

A

styloid process of the temporal bone to the angle of the mandible

45
Q

What are the attachment sites of the sphenomandibular ligament?

A

the spine of the sphenoid bone to the lingula of the mandible

46
Q

What does the sphenomandibular ligament represent?

A

a remnant of Meckel’s cartilage of the first branchial arch

47
Q

What muscles act to depress the mandible or open the mouth?

A

laterla pterygoid along with the suprahyoid and infrahyoid muscles

48
Q

What muscles act to retract the mandible or pull the chin back?

A

temporalis

49
Q

What openings are associated with pterygopalatine region?

A

inferior orbital fissure, pterygomaxillary fissure, sphenopalatine foramen, and foramen rotundum

50
Q

Which ganglion is located within the pterygopalatine region?

A

the pterygopalatine or Meckel’s ganglion

51
Q

What neural pathway is the pterygopalatine ganglion associated with?

A

parasympathetic innervation of the lacrimal gland

52
Q

Which cranial nerves are associated with the parasympathetic pathway tot he lacrimal gland?

A

the facial and trigeminal cranial nerves

53
Q

What divisions of the trigeminal nerve will be associated with the parasympathetic pathway to the lacrimal gland?

A

the ophthalmic and maxillary divisions of the trigeminal nerve

54
Q

What bones form the nasal skeleton?

A

the nasal bones, the maxillae or maxillary bones, and the frontal bone

55
Q

What type of tissue forms the major portion of the nose?

A

cartilage

56
Q

What are the names of the larger pieces of cartilage forming the nose?

A

septal cartilage, lateral nasal cartilage, and major alar cartilage

57
Q

Which of the nasal cartilages will attach to the ethmoid, vomer, and nasal bones?

A

the septal cartilage

58
Q

What are the bony attachments for the lateral nasal cartilage?

A

the nasal bones and the frontal process of the maxilla

59
Q

Which of the nasal cartilages will attach to the nasal and maxillary bones?

A

the lateral nasal cartilage

60
Q

Which of the larger nasal cartilages lacks any attachment to bone?

A

the major alar cartilage

61
Q

Which branch(es) of the external carotid artery will vascularize the external nose?

A

the facial and internal maxillary arteries

62
Q

Which branch(es) of the internal carotid artery will vascularize the external nose?

A

the ophthalmic artery

63
Q

Which artery(ies) will supply the sides of the nose?

A

facial and internal maxillary artery branches

64
Q

Which artery (ies) will supply the dorsum of the nose?

A

the ophthalmic artery

65
Q

Veins of the external nose typically drain into what vessels?

A

the pterygoid venous plexus

66
Q

Which type of sensory pathway will convey information from the cutaneous regions of the external nose?

A

somatic afferent (ISA) pathways

67
Q

What do somatic afferent pathways monitor?

A

pain, temperature, light touch, and proprioception

68
Q

What nerves provide cutaneous sensation for the skin of external nose?

A

the ophthalmic and maxillary divisions of the trigeminal nerve

69
Q

Sensory receptors contained within the skin of the nose are associated with somatic afferent fibers originating from neurons in what ganglion?

A

the semilunar/ trigeminal ganglion

70
Q

What is the oral vestibule?

A

the space b/w the teeth and the external fleshy tissue of the face

71
Q

What is the labial vestibule?

A

the space b/w the lips and the teeth

72
Q

What is the buccal vestibule?

A

the space b/w the cheeks and the teeth

73
Q

What is the oral cavity?

A

the space w/in the region formed by the occluded teeth

Spinal Anatomy -- Morter (21 decks)

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