Histology Flashcards

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1
Q

What are the basic tissue types of the skin? (8)

A

Epithelium
Glands
Muscle
Hair
Adipose Tissue
Connective Tissue
Nervous Tissue
Nails

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2
Q

Epithelium: The skin has what type of epithelium?

A

Stratified squamous epithelium

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3
Q

Epithelium: Difference in epithelium of the palm

A

Thickened keratin layers with undulations following the contours of the dermis to provide fingerprints

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4
Q

Epithelium: Difference in epithelium of the sole of the foot

A

Thickened keratin layers with helical segments at the terminal parts of the sweat ducts

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5
Q

Epithelium: Blood vessels are lined by what type of epithelium??

A

Simple squamous epithelium

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6
Q

Glandular Epithelium: Sebaceous glands are derived from what?

A

Epidermis

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7
Q

Glandular Epithelium: Eccrine glands are found where?

A

Everywhere bar the lips and genitals

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8
Q

Glandular Epithelium: Appearance of eccrine glands

A

Coiled tubular structures

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9
Q

Glandular Epithelium: Apocrine glands are limited to where?

A

Axilla
Nipple
Genitals

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10
Q

Smooth Muscle Fibres: Attached where?

A

To hair follicles via the arrestor pili

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11
Q

Smooth Muscle Fibres: Function

A

Pulls the hair perpendicular to the skin during cold or a fright

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12
Q

Connective Tissue: Function of collagen and elastic fibres

A

Provide tensile strength with elastic qualities of the skin

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13
Q

Nervous Tissue of the Skin: Where are free nerve endings located?

A

Basal layer of the epidermis

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14
Q

Nervous Tissue of the Skin: Meissner’s Corpuscle - Function

A

Tactile sensation

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15
Q

Nervous Tissue of the Skin: Meissner’s Corpuscle - Present in what layer of the skin?

A

Dermis

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16
Q

Nervous Tissue of the Skin: Meissner’s Corpuscle -Abundant where?

A

Tactile areas of fingers and toes

17
Q

Nervous Tissue of the Skin: Pacinican Corpuscle - Function

A

Deep pressure sensors

18
Q

Nervous Tissue of the Skin: Pacinican Corpuscle - Located where?

A

Deep dermis

19
Q

Nervous Tissue of the Skin: Pacinican Corpuscle - Located in what ares of the digits?

A

Pulp section

20
Q

Hair: Hair Follicle

A

Invagination of the epidermis

21
Q

Hair: Hair Follicle - cross section shows what?

A

Central medulla surrounded by the cortex and outer cuticle

22
Q

Hair: Hair Follicle - Central Medulla contains what?

A

Soft keratin

23
Q

Hair: Hair Follicle - Outer cortex and cuticle contain what?

A

Hard keratin

24
Q

Hair: Hair Follicle - Papilla contains what?

A

Multiple vascular channels

25
Q

Hair: Hair Follicle - Matrix region contains what?

A

Keratin-producing cells

26
Q

Hair: Hair Follicle - Hair bulb contains what?

A

Hair matrix
Dermal papilla

27
Q

Nails: Plates are filled with what?

A

Hard keratin

28
Q

Nails: Matrix function

A

Cells divide to produce hard keratin

29
Q

Nails: Cuticle

A

Extension of the skin fold covering the nail root

30
Q

Nails: Hyponychium

A

Secures the free nail edge

31
Q

TEN

A

Toxic Epidermal Necrolysis

32
Q

Toxic Epidermal Necrolysis:

A