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| The biggest part of the outer ear that is made up of cartilage |
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| We have 2 types of glands on the Pinna-___ and ___; ___ produce a waxy substance and the ___ produce an oily substance |
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| Sabaceous; ceruminous; ceruminious; sebaceous |
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| We all have fine ___ on the Pinna |
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-The outer ear is all is one continuous
piece of ___
-Not any fatty
___ tissuer |
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| The auricularis anterior arises from the ___ ___ and it inserts into the major ___, which is the upper rim portion of the ear. This point is closer to where the ear connects to the head, and this muscle works to pull the ear ___ and ___ |
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| temporal fascia; helix; forward; upward |
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| The auricularis superior is one of three ___ muscles of the ear. It is a thin, fan-shaped muscle that arises from the ___ ___ (connective tissue along the side of the head) and descends into the root of the ___, or ear. The primary action of the auricularis superior is to draw the auricula of the ear ___ and ___. |
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| extrinsic; temporal fascia; auricle; upward; backward |
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| The auricularis posterior serves to draw the auricula ___. |
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| Adjusts the shape of the auricle by depressing the anterior margin of the ear cartilage. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree. |
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| Adjusts the shape of the auricle by depressing the anterior margin of the ear cartilage. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree. |
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Helicis[image]
Helicis Major |
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| Assist in adjusting the shape of the anterior margin of the ear cartilage. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree. |
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| Intrinsic muscle that adjusts the shape of the auricle by pulling the antitragus and tail of the helix towards each other, helping to increase the opening into the external acoustic meatus. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree. |
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| Intrinsic muscle that tenses the tragus of the auricular cartilage to help increase the opening into the external acoustic meatus |
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| Intrinsic muscle that helps flatten the cranial profile of the auricular cartilage |
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| Transversus auriculae-is on the back side of the ear |
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| Intrinsic muscle that helps flatten the cranial profile of the auricular cartilage |
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| Obliquus auriculae (on the back side of the ear) |
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| runs just behind the helix and supplies blood to the pinna; and ear canal; runs along superficial temporal lobe |
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| Posterior auricular artery |
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| Many hearing losses have to do with loss/changing ___ ___; we need healthy blood flow to the hearing structures |
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| ___ supplies blood flow to many important structures; including the outer ear |
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| Anastomic arcades: Stoma means ___; anastoma means ___ mouths; Refers to a ___ system but they end up rejoining later on; They split and rejoin multiple times |
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mouth; many; perforating
[image] |
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| ___ ___ ___ is the passageway of the external ear that carries sound waves through the cartilage and temporal bone to the tympanic membrane (eardrum), or membranous lateral window of the tympanic cavity. Lining the meatus is a glandular integument. The glands are modified sebaceous glands, called ___ glands, which produce the wax of the ear canal. |
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External auditory meatus; ceruminous
[image] |
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| EAM: Meatus means ___; __cm based on the floor; __ if you measured based on the ceiling of the EAM |
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| No hair follicles in the ___ ear; Hair only grows in the first ___ of the ear canal; Earwax doesn't naturally move inward; the hairs are angled ___ |
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| The posterior auricular artery is the remaining posterior branch of the external carotid. It is ___ than the occipital artery and arises just above the posterior belly of the ___ muscle. It ascends obliquely ___ and ___ in the parotid gland, to furrow between the ___ of the ear and the ___ process of the temporal bone. |
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| smaller; digastric; upward; backward; pinna; mastoid |
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| The posterior auricular artery divides into branches. The stylomastoid branch enters the stylomastoid foramen of the temporal bone and supplies the ___, the mastoid cells, and the ___ ___. The auricular branch supplies the back part of the ___. It anastomoses with the posterior temporal and auricular branch of the superficial temporal artery. Some of its branches perforate the cartilage of the ___ to supply its anterior surface. The mastoid branch runs across the insertion of the sternocleidomastoid muscle. It supplies the structures over the mastoid process and anastomoses with the ___ artery |
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| tympanum; semicircular canals; auricle; pinna; occipital |
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Temporal Bone:
Latin word for scale; smooth, convex, and thin; semi translucent at it's borders |
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Temporal Bone:
Latin word for breast; resembles a breast; rough texture because it's perforated by air cells (aerated). Conical in shape; larger in males; Services as an attachment for some of the muscles in the head and neck |
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| temporal bone space is underneath the ___ and ___ portion |
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Temporal Bone:
Latin word means rocky; solid bone (not fractured very often; protects those inner ear organs |
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Temporal Bone:
Tympanic portion of the temporal bone, forming the greater part of the wall of the external acoustic meatus. |
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Temporal Bone:
Long thin projection at inferior temporal bone; slender and pointed; attachment for a few muscles like the mandible muscles; jaw muscles |
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What is the red part?
[image] |
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| Refers to that any cavity based on its shape and size will vibrate most efficiently in a specific frequency range stimulated by sound |
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-You get effective gain when sound originates on ___ side of the head
-You get a little bit of gain from your head being on top of shoulders because it ___ sound to your ears |
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| The outer ear ___ sound, ___ sound, and ___ the ear |
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| amplifies; resonates; protects |
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| The outer ear protects the ___ ___; medial displacement of the ___ organs |
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| tympanic membrane; sensory |
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| Hair follicles are helpful because they are angled ___ so things can't travel into your ear canal easily |
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| ___-latin word for wax; wax sticks to solid materials in it's vicinity; __% carotin __% fatty acids and alcohols, __-__% cholesterol, and the rest is miscellaneous |
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| Dry type of earwax-___ and ___; lower ___ content; common among south east asian or native american (northern part) |
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| Cerumen helps skin stay ___; ___ properties; bugs don't like it; anti fungal properties; vessel that carries dirt and other substances out |
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| lubricated; antibacterial |
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| Ear canal is __ shaped (part of the protective property) |
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