Derm/EENT Anatomy Flashcards

1
Q

junction of sphenoid, temportal, frontal and parietal bones

A

Pterion–lies over MIDDLE MENINGEAL ARTERY BRANCH (off maxilary artery)

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2
Q

Passes through Superior orbital vissure (5)

A

CN
III, IV, V1, VI
3, 4, 51, 6

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3
Q

passes throuh optic canal

A

CN II

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4
Q

Passes through inferior orbital fissure

A

CN V2 (connection btwn inferior ophthalmic vein and pterygoid plexus)

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5
Q

foramena of mandible

A

Mandibular foramen, mental foramen

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6
Q

scalp mneumonic (5) 1-3 fused

A

SCALP

  1. Skin
  2. Connective tissue
  3. Aponeurosis
  4. Loose areolar connective tissue (allows scalp to move in relation to skull)
  5. Periosteum
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7
Q

anastomosis

A

physical connection of BV that allows for collateral circulation

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8
Q

collateral circulation

A

alternate pathway for blood to reach a specific region of the body

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9
Q

Arteries of scalp (2)

A

External and internal carotid arteries

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10
Q

external carotid artery feeds

A
  1. occipital a.
  2. posterior auricular a.
  3. superficial temporal a.
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11
Q

internal carotid artery feeds

A
  1. supraorbital a.

2. supratrochlear a.

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12
Q

arteries to face (5)

A
  1. external carotid artery
  2. lingual a.
  3. facial a.
  4. superficial temporal a
  5. Maxillary a. (middle menigeal a., and inferior alveolar artery)
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13
Q

veins of face (6)

A
  1. supratrochlear v.
  2. supraorbital v.
  3. superficial temporal v.
  4. maxillary v.
  5. retromandibular v.
  6. internal jugular v.
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14
Q

infections from face spread to dural sinuses + venous routes (facial veins enter cavernous sinus–can spread infection to brain)

A

Danger triangle of face (superior ophthalmic v, inferior ophthalmic v., and pterygoid plexus)

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15
Q

CN VII think

A

muscles of facial expression and taste to ANTERIOR 2/3 of tongue

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16
Q

Branches of facial n VII

1-5 motor fibers of facial expression

A
  1. temporal (pinky)
  2. zygomatic (ring)
  3. buccal (middle)
  4. mandibular (pointer) *
  5. cervical (thumb)
  6. chorda tympani
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17
Q

facial n VII mneumonic

A

2 zebras bit my cockatu

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18
Q

bell’s palsy may be due to (4)

A
  1. CN VII inflammation
  2. virus
  3. sleeping w/ cold air on face
  4. stroke
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19
Q

Trigeminal nerve divisions OMM

A
  1. Ophthalmic division V1 – S
  2. Maxillary division V2 – S
  3. Mandibular division V3 – S + M (mastication) *
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20
Q

Trigeminal nerve think

A

chief sensory n of face + muscles of mastication

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21
Q

muscles of mastication (4)

All innervated by ________

A
  1. temporalis m (elevates mandible)
  2. masseter m. (elevates/grindes)
  3. medial pterygoid m. (elevates/grindes)
  4. lateral pterygoid m. (depresses/protrudes)
    - -Mandibular division of Trigeminal n. V3
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22
Q

TMJ type

A

hinge synovial joint–loose synovial capsule

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23
Q

articulations of TMJ (3)

A
  1. mandibular fossa of temporal bone
  2. mandibular condyle
  3. articular tubercle of temporal bone
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24
Q

Parotid gland structures (3) superficial to deep

Exocrine gland –> parotid duct

A
  1. CN VII
  2. Retromandibular v.
  3. external carotid a.
    Nerve, vein, artery
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25
Q

Oral region components (4)

A
  1. teeth
  2. palate
  3. tongue
  4. pharynx
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26
Q

Types of teeth (2)

A

deciduous and permanent

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27
Q

types of teeth and purpose (4)

A
  1. incisors (cutting)
  2. canines (tearing)
  3. premolars (grinding/ crushing)
  4. Molars (grinding/crushing)
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28
Q

Teeth types and numbers

A

Primary 20
secondary 12
Total = 32

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29
Q

Nerve supply to teeth

A
  1. Maxillary teeth – CN V2

2. Mandibular teeth–CN V3 (inferior alveolar nerve through mandibular foramen)

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30
Q

Hard palate formed by _______ and _________ bones

A

maxilla (palatine process) and palatine bones

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31
Q

Soft palate formed from

A

moveable fibromuscular tissue

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32
Q

muscles of soft palate innervated by _____, moves _______ against pharynx when _____

A

CN X,
posteriorly,
swallowing

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33
Q

muscles of tongue: types and innervation

A

extrinsic (origin and insertion in different organs) and intrinsic (origin and insertion in organ–change shape of tongue),
CN XII

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34
Q

Papillae posterior to anterior

A
  1. Vallate papillae
  2. filiform p.
  3. fungiform
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35
Q

general sensory and taste innervation for posterior 1/3 of tonue

A

CN IX – glosopharyngeal

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36
Q

Anterior 2/3 of tongue general sense vs. taste innervation

A
  1. CN V3

2. CN VII (spec. Chorda tympeni)

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37
Q

motor innervation of entire tongue

A

CN XII hypoglossal

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38
Q

Roles of nose (4)

A
  1. olfaction
  2. respiration
  3. filtration of dust
  4. humidify air
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39
Q

opening into nasopharynx

A

posterior nares or choanae

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40
Q

sides of nose

A

ala

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41
Q

bones of nose

A

nasal, frontal, maxillary

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42
Q

bones of nasal septum

A
  1. perpendicular plate of ethmoid

2. vomer

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43
Q

mucosa of nose

A
  1. respiratory mucosa

2. olfactory mucosa

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44
Q

new name for turbinates (turbulence)

A

conchae

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45
Q

conchae and bone

A
  1. superior–ethmoid bone
  2. middle–ethmoid bone
  3. inferior–separate bone
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46
Q

Meatus purpose (3)

A
  1. superior ( post ethmoid sinus drainage
  2. middle (frontal, maxillary, ant and middle ethmoid sinus drainage)
  3. inferior (nasolacrimal duct drainage)
47
Q

most commonly infected sinus + aperture location + proximal to ______ _______

A

Maxillary,
aperture superior to floor of sinus,
proximal to maxillary teeth (root may grow into sinus)

48
Q

raises upper eyelid

A

levator palpebrae superioris m

49
Q

tarsal glands aka/ purpose

A

Meibomian glands–secrete lipid that lubricates eyelids

50
Q

Conjunctiva types:

A

Palpebral:inner surface of eyelids
Bulbar: attached loosely to anterior eyeball surface

51
Q

lacrimal puncta(drainage) –>lacrimal canaliculi –>

A

lacrimal sacs –> nasolacrimal duct–>inferior nasal meatus

52
Q

role of tears (3)

A
  1. clean
  2. protect
  3. lubricate eyes
53
Q

extrinsic aka extraocular eye muscles

intrinsic eye muscles

A
  • move eyeballs

- change shape of pupil etc (CN III parasympathetic innervation)

54
Q

Eyeball anatomy:
Fibrous layer:
Vascular layer:
Inner layer:

A
  • sclera and cornea
  • aka uvea–choroid, ciliary body, iris
  • retina
55
Q

Sclera (4)

A
  1. white of eye
  2. posterior 5/6 of eyball (slide 17)
  3. protects and shapes eyeball
  4. attachment for extrinsic and intrinsic mm
56
Q

Cornea characteristics (5)

A
  1. transparent
  2. anterior 1/6 of eyeball
  3. allows light entry
  4. avascular
  5. innervated by CN V1
57
Q

Vascular layer –> Choroid characteristics (3)

A
  1. highly vascular
  2. btwn sclera and retina
  3. absorbs light so it isn’t scattered w/in eye
58
Q

Ciliary body characteristics (2)

A
  1. ring of tissue surrounding lens–providing attachment of lens
  2. connects choroid w/ lens
59
Q

ciliary processes are folds that produce _______ _____ which fills anterior segment of eye

A

aqueous fluid

60
Q

Iris characteristics (2)

A
  1. lies on anterior surface of lens
  2. thin, contractile diphragm
  3. has circular and radial smooth mm fibers that vary pupil size
61
Q

Inner layer–> retina layers (2) and characteristics

A
  1. Pigmented layer–single cell thick, adjacent to choroid, absorbes light
  2. Neural layer–neurons, optic disc, macula lutea
62
Q

Neural layer components (3)

A
  • photoreceptors (rods/cones)
  • Bipolar cells–intermediate layer
  • Ganglion cells (axons from optic nerve)
63
Q

optic disc aka ____ _____ is where…

A

blind spot,

optic nerve exits eye–no photoreceptors

64
Q

area of enhanced visual acuity; mostly cones

A

macula lutea

65
Q

center of macula; only cones; most acute vision

A

fovea centralis

66
Q

blood to rods and cones supplied by

A

capillaries of choroid

67
Q

Remaining retina blood supplied by

A

central artery; from ophthalmic artery

68
Q

Anterior segment–aqueous humor (produced by ciliary PROCESSES)

  • anterior chamber btwn
  • posterior chamber btwn
A
  • cornea and iris

- iris and lens

69
Q

posterior segment is…

filled w/…

A

behind lens; filled w/ vitreous humor

70
Q

blocked aqueous humor drainage leads to

A

glaucoma

71
Q

Visual pathway: Retina–>

A

CN II–> optic chiasm –> optic TRACT(after chiasm) –> thalamus –> optic radiations –> Primary visual cortex in occipital lobe

72
Q

secrete ear wax in external acoustic meatus

A

ceruminous glands

73
Q

optic TRACTS carry

A

information from the CONTRALATERAL visual FIELD

74
Q

TM covered w/

A

skin externally; mucous membrane internally

75
Q

TM components (3) characteristics

A
  • Flaccid part–superior, thin
  • Tense part–most of membrane, has fibers to support TM
  • Umbo–end of malleus in contact
76
Q

Muscles of middle ear (2) + purpose

A
  1. stapedius–pulls STAPES preventing ^ movement

2. tensor tympani–pulls MALLEUS–tensing TM

77
Q

middle ear in

A

petrous portion of temporal bone

78
Q

auditory canal aka aka

A

eustachian tube, pharyngotympanic tube

79
Q

chorda tympani nerve through middle ear for (3)

A
  • taste (SPECIAL SENSE) to anterior 2/3 of tongue–CN VII
  • travels btwn incus and malleus
  • joins lingual branch of CN V3
80
Q

Fluid portion:
Bony labyrinth:
Membranous labyrinth:

A
  • perilymph (plasma-like)

- endolymph

81
Q

Bony labyrinth character (3)

A
  1. fluid-filled spaces w/in petrous portion of temp bone
  2. surrounded by OTIC CAPSULE
  3. contains (cochlea, vestibule, semicircular canals)
82
Q

Vestibule contains _______ and ______ for ______ – continuous w/ ________ and ________ ________

A

utrilcle and saccule (maculae) for balance,

cochlea and semicircular canals

83
Q

sacs and ducts suspended in bony labyrinth

A

membranous labyrinth–cochlear and vestibular labyrinth

filled w/ endolymph–intracellular fluid

84
Q

organ of corti aka

A

Spiral Organ

85
Q

________ is the enlarge swelling in the semicircular canals, location of ______ ______, equilibrium receptors that respond to rotational movement of head

A

Ampulla,

crista ampullaris

86
Q

subQ aka

A

hypodermis

87
Q

Skin types (2)

A
  • thick skin–palms and soles–5 layers

- thin skin–everywhere else–4 layers

88
Q

Epidermal cells (4)

A
  1. Keratinocytes–surface cells dead, produce keratin–waterproof
  2. Melanocytes–produce melanin–UV protection
  3. Langerhans’ cells–macrophages; immune cells
  4. Merkel cells–associated w/ sensory nerve endings
89
Q

Epidermis layers mneumonic–deep to superficial

A
Bad Skin Gets Little Calluses
Basale (deep)
Spinosum
Granulosum
Lucidum (only in thick skins)
Corneum (superficial)
90
Q

stratum basale characteristics (4)

A
  1. deepest
  2. single cell layer
  3. stem cells become keratinocytes which undergo mitosis
  4. also contains melanocytes
91
Q

Straum Spinosum characteristics (3)

A
  1. several layers thick
  2. keratinocytes of processes that look like spines
  3. contains langerhans’ cells
92
Q

Stratum Granulosum (3)

A
  1. keratinocytes FLATTEN
  2. 1-5 cell layers
  3. contain granules
93
Q

Stratum lucidum (2)

A
  1. only found in thick skin

2. keratinocytes are dead and flattened

94
Q

Stratum corneum (3)

A
  1. outermost layer
  2. keratinocytes are dead and filled w/ keratin
  3. protective/ waterproof
95
Q

Dermous is _____ _____ layer; binds body together. It is ______ and contains _____, _______, _____ ______, and _____

A

fibrous CT,
VASCULAR,
fibroblasts, macrophages, mast cells, WBCs

96
Q

Dermal layers (2)

A
  1. papillary (nipple) layer–20% of dermis, contains DERMAL PAPILLAE, Areolar CT, Collagen, elastic fibers
  2. reticular layer–Deeper, 80% of dermis, DENSE, IRREGULAR CT
97
Q

dermal blood vessels nourish

A

dermis and epidermis–body temperature regulation by constricting/dilating. Holds 5% of blood vollume

98
Q

Hypodermis aka aka

A

superficial fascia or sucutaneous tissue

99
Q

Superficial fascia (4)

A
  1. areolar and adipose tissue
  2. stores fat –> insulation
  3. anchors skin to muscles underneath
  4. allows skin to slide freely
100
Q

Integument functions (6)

A
  1. protection
  2. regulation of body tem[
  3. cutaneous sensation
  4. metabolic functions
  5. blood reservoir
  6. excretion
101
Q

Skin protection (3)

A
  1. chemical barrier–acidic secretions
  2. physical barrier–keratin, continuity
  3. biological barrier– Langerhan’s cells, macrophages
102
Q

Skin Regulation (3)

A
  1. body temp
  2. sweat
  3. Dermal BV constriction
103
Q

Skin touch sensation

A

Meissner’s corpuscels

104
Q

Pressure/ bumps

A

pacinian receptors

105
Q

light skin touch sensation

A

root hair plexus

106
Q

skin pain and temp sensation

A

free nerve ending

107
Q

Metabolic functions of skin (2)

A
  1. Vitamin D synthesis

2. Used for dietary Ca++ uptake

108
Q

Skin excretion (4)

A
  1. lose H2O
  2. NaCl
  3. Ammonia
  4. Urea/ Uric acid
109
Q

follicle runs from

A

surface into DERMIS

110
Q

Hair components (4)

A
  1. Protein–keratin
  2. Hair follicle
  3. root hair plexus
  4. arrector pili m.
111
Q

sweat gland aka

A

sudoriferous gland

112
Q

modified sweat glands (2)

A
  1. ceruminous glands

2. mammary glands

113
Q

secrete sebum–everywhere except palms and soles

A

sebaceous glands–lubricates hair and skin

114
Q

sudoriferous glands everywhere except (2)

A
  1. nipples

2. external genitals