Skin Histology Flashcards

1
Q

4 Major Tissue Types

A

Muscle
Nerve
Epithelial
Connective

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2
Q

Basal Lamina/Membrane

A

Anchors Epithelial Sheet to deeper connective tissue

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3
Q

Epithelial Vascular/Avascular

A

Avascular

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4
Q

Epithelial Functions

A
Secretion
Exchange through (transport)
Absorption
Barrier
Physical protection
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5
Q

Desmosomes

A

Rivet/sew cells together

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6
Q

Hemidesmosomes

A

Sew to basement membrane

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7
Q

Tight Junctions

A

impermeable Bricks

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8
Q

Gap Junctions

A

Mario Tubes between Cytosol

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9
Q

Epithelial Shapes

A

Squamous Cuboidal Columnar

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10
Q

Connective Tissue Function

A

Insulation
Protection
Support
Binding

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11
Q

Connective Tissue Types

A
CT Propper
Cartilage
Bone
Dentin
Blood
Mesenchyme
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12
Q

Hemocytoblasts

A

Blood

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13
Q

Loose CT aka

A

Areolar CT

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14
Q

Areolar CT aka

A

Loose CT

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15
Q

Ground Substance is

A

polysacharides

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16
Q

3 Connective Fiber Tipes

A

Collagenous
Elastic
Reticular

17
Q

Reticular Fibers

A
Hold together Adipose
Soft Skeleton (stroma)
18
Q

Collagen’s “strength”

A

resist stretch

19
Q

Collagen synthesis Defficiency

A

Hydroxyproline (amino acid) in collagen, gives it stability

20
Q

Fragile Collagen Causes

A

Purple spots of blood leakage
Pinpoint bleeding around hair follicles, along gums, under nails
Defective Osteoid (bone matrix protein) Formation
Weakness, aching limbs

21
Q

Elastic Fibers

A

STRETCHABILITY with recoil (also bone?)

22
Q

Reticular Fibers

A

Support individual cells

23
Q

Proteoglycans

A

found in interstitial fuid
protein core +
GAGs (polysacharides, negative charge)

24
Q

Loose CT Types

A

Areolar
Adipose
Reticular

25
Q

Dense CT Types

A

Regular - ligaments/tendons, parallel for 1 plane of resistance
Irregular - Dermis Skin
Elastic