Flashcards in Auricle of the Ear Deck (54)
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1
What parts make up the external ear?
- auricle
- external acoustic/auditory meatus
2
What type of cartilage forms the auricle?
elastic cartilage
3
What features are commonly observed in the skin of the ear?
- hair follicles
- sweat glands
- sebaceous glands
4
What is the helix of the external ear?
the rounded outer rim of the auricle
5
What is the name given to the anterior fold of the helix above the tragus?
the crus of the helix
6
What is the spine of the helix of the external ear?
the palpable anterior projection of the helix
7
What is the scaphoid fossa of the external ear?
the depression under the rim of the helix
8
What is the rounded inner rim of the external ear?
antihelix
9
What is the superior crus of the antihelix?
the rounded linear upper extension of the antihelix
10
What is the inferior crus of the antihelix?
the rounded linear lower extension of the antihelix
11
What is formed between the crura of the antihelix?
triangular fossa
12
What is the cymba concha?
the part of the concha between the helix and the inferior crus of the antihelix
13
What is the name of the cavity leading into the external auditory meatus?
concha
14
What is the name of the eminence anterior to the concha?
tragus
15
What is the really stupid name that we have to know for the tragus for this really, really dumb class?
goat's beard
16
What is the name of the indentation between the tragus and antitragus?
intertragic incisure
17
What is the name of the rounded elevation superior to the lobule of the auricle?
antitragus
18
What is the name given to the fatty, suspensory, inferior part of the auricle?
lobule
19
What is the name given to the palpable posterior projection corresponding to the triangular fossa of the auricle?
eminentia triangularis
20
What is the name given to the palpable posterior projection corresponding to the concha of the auricle?
eminentia concha
21
What is the name of the palpable posterior projection of the eminentia concha of the auricle?
ponticulus
22
Identify the extrinisic muscles of the auricle.
- anterior auricular
- superior auricular
- posterior auricular
- temporoparietalis
23
Which C.N. will innervate the muscles of the auricle?
facial nerve
24
What is the innervation of the extrinisic muscles of the auricle?
posterior auricular and temporal branches of the facial nerve
25
What innervates the anterior auricular, superior auricular, and temporoparietalis muscles?
temporal branch of the facial nerve
26
Posterior auricular branches of the facial nerve will supply motor fibers to which extrinsic auricular muscle?
posterior auricular muscle
27
What specific branches of the facial nerve plexus provide motor innervation to the scalp?
- temporal
- zygomatic
- posterior auricular
28
What muscles associated with the scalp will be innervated by the temporal, zygomatic, and posterior auricular nerves?
- epicranius
- superior group of muscles of the ear
29
Which branches of the external carotid artery supply the auricle?
- occipital a.
- posterior auricular a.
- superficial temporal a.
30
