INTEGUMENTARY SYSTEM · 2020. 4. 21. · Integument adnexa . DEMO . SLIDE BOX 159 (1089)...

INTEGUMENTARY SYSTEM Slide #10 (926). Skin, monkey

stratum basale

melanocytes

stratum spinosum

keratohyalin granules

stratum granulosum

stratum corneum

Keratin inside denucleated cell shells

stratum lucidum

dermis dermis

http://viewer.serenusview.com/Viewer.aspx?SlideId=970c4bf2-6502-4140-a186-b94f0356921d

Slide #10 (926). Skin, monkey

melanocytes

. The epidermal projections are known as epidermal ridges (rete pegs), while the alternating dermal extensions are termed dermal papillae.

stratum corneum

stratum granulosum

stratum spinosum

stratum basale



The elaborate interdigitation of these two layers occurs because INTERDIGITATION INCREASES THE TOTAL AMOUNT OF SURFACE AREA TO FACILITATE ATTACHMENT OF THE EPIDERMIS TO THE DERMIS AND TO INCREASE SURFACE AREA FOR DIFFUSION OF NUTRIENTS AND GASES TO THE EPIDERMIS FROM THE DERMIS

rete pegs dermal papillae.


Epidermal – dermal interface creates unique finger prints

Rete pegs

Finger print

stratum lucidum

dermal papillae.

finger pad


Pacinian corpuscle PRESSURE RECEPTOR

20x

Meissner’s corpuscle Light touch receptor

sweat glands

rete peg

rete peg

Skeletal muscle

dermis


Slide #10 (926). Skin, monkey Sweat glands

Myoepithelial cell

Sweat duct

White fat

CCT


DEMO SLIDE BOX 240 - Skin from a digital pad, dog. stratum granulosum stratum lucidum stratum corneum

compound hair follicles

Myoepithelial cells

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Slide #19 (449-E001-H-132). Skin, horse

hair follicles

arrector pili muscles

sebaceous glands

sweat glands

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Slide #19 (449-E001-H-132). Skin, horse Melanocytes (clear cells on basal layer

nuclei of myoepithelial cells

sweat glands


Slide #19 (449-E001-H-132). Skin, horse Skeletal muscle

nerve

muscular artery

Sebaceous glands

arrector pili muscle Smooth muscle


DEMO SLIDE BOX 215. Demo slide #215a. Skin of metacarpal pad, cat. Pacinian corpuscle

UNILOCULAR ADIPOSE TISSUE (WHITE FAT)

SMOOTH MUSCLE

COLLAGENOUS CONNECTIVE TISSUE (CCT)

ENDOTHELIUM (SIMPLE SQUAMOUS EPITHELIUM) [in a BLOOD vessel]

NERVE

http://viewer.serenusview.com/Viewer.aspx?SlideId=b4408376-d4e9-4f13-8bbe-047bfc96844f

Slide #20 (R-H-82). Skin, rat. sinus (tactile) hair follicles

SINUS HAIRS ARE MOST NUMEROUS ON THE HEAD / FACE REGION ; THE FUNCTION OF SINUS HAIRS IS “TOUCH” RECEPTION OR ORIENTATION OF THE HEAD / FACE (OR TO A LESSER EXTENT YOU COULD SAY THE BODY) IN THE ENVIRONMENT

http://viewer.serenusview.com/Viewer.aspx?SlideId=069fe84b-9e2c-461e-b94f-fca0ca254490

Slide #20 (R-H-82). Skin, rat. Skeletal muscle

Mast cells

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Slide #95 (Rbt 85B). skin and sinus hairs, rabbit.

sinus (tactile) hair follicle

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Demo Slide 227 (C-H-4). Anal sac, dog anocutaneous junction

WHITE FAT

cross section of one sac and is lined by keratinized stratified squamous epithelium

apocrine sweat glands, the glands of the anal sac

SKELETAL MUSCLE

Anal sac

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Demo Slide 227 (C-H-4). Anal sac, dog

WHITE FAT

SKELETAL MUSCLE

nerve

CCT

ENDOTHELIUM

apocrine sweat glands

White fat

http://viewer.serenusview.com/Viewer.aspx?SlideId=77752ea0-8eea-4985-9d7f-2def824963a0

Slide #43 (K9-1). Anal region, dog.

rectoanal junction

non-keratinized epithelium,

the goblet cells among disrupted simple columnar epithelium

http://viewer.serenusview.com/Viewer.aspx?SlideId=530f2133-3762-4af1-a06a-914ef8c11d3e

Slide #43 (K9-1). Anal region, dog. rectoanal junction and regional skin


Apocrine sweat glands keratinized

epithelium,

Circumanal gland

gut

gut


Slide #43 (K9-1). Anal region, dog.


circumanal glands are considered modified sebaceous glands

keratinized epithelium,


DEMO SLIDE BOX 62 – Anal region, dog. NONKERATINIZED STRATIFIED SQUAMOUS [EPITHELIUM

KERATINIZED STRATIFIED SQUAMOUS [EPITHELIUM]

SIMPLE COLUMNAR [EPITHELIUM] [= RECTUM ; NOTE GOBLET CELLS ARE PRESENT]

circumanal glands

http://viewer.serenusview.com/Viewer.aspx?SlideId=44cd6028-65c3-48bc-9580-d807a6b20397

SMOOTH MUSCLE [= INTERNAL ANAL SPHINCTER] SKELETAL MUSCLE [= EXTERNAL ANAL SPHINCTER]

DEMO SLIDE BOX 62 – Anal region, dog.

http://viewer.serenusview.com/Viewer.aspx?SlideId=44cd6028-65c3-48bc-9580-d807a6b20397

Sheep lip slide 83

tactile hair follicle

http://viewer.serenusview.com/Viewer.aspx?SlideId=734b3132-b427-4789-87ab-a67c00b7ff8bhttp://viewer.serenusview.com/Viewer.aspx?SlideId=734b3132-b427-4789-87ab-a67c00b7ff8b

Slide #83 (SP-1-79). Skin of lip, sheep.

skin

oral cavity

skin adnexa (i.e. hair/hair follicles, sebaceous & sweat glands, arrector pili muscles

NONKERATINIZED STRATIFIED SQUAMOUS [EPITHELIUM] KERATINIZED STRATIFIED SQUAMOUS [EPITHELIUM]

http://viewer.serenusview.com/Viewer.aspx?SlideId=734b3132-b427-4789-87ab-a67c00b7ff8b

Slide #83 (SP-1-79). Skin of lip, sheep. Mixed glands

SKELETAL MUSCLE

UNILOCULAR ADIPOSE TISSUE (WHITE FAT)

COLLAGENOUS CONNECTIVE TISSUE (CCT)

http://viewer.serenusview.com/Viewer.aspx?SlideId=734b3132-b427-4789-87ab-a67c00b7ff8b

DEMO SLIDE BOX 27 – Hoof, donkey.

keratinized stratified squamous epithelium

adnexa

rete pegs (epidermal ridges) and dermal papilla

perioplic region with predominant rete pegs dermal papilla

http://viewer.serenusview.com/Viewer.aspx?SlideId=95537f28-d14a-4122-86f8-67b228cef7f8

Epidermal – dermal interface

dermis

dermis

rete pegs

dermal papilla dermis dermis

Finger skin finger skin equine hoof

Tubular horn

DEMO SLIDE BOX 27 – Hoof, donkey.

stratum corneum that was produced in the perioplic region is called the STRATUM EXTERNUM

STRATUM EXTERNUM

horn tubules non-tubular or intertubular horn

coronary region = the junction of the epidermis with the dermis.

coronary region

perioplic region

epidermis

dermis

Primary & secondary epidermal laminae


DEMO SLIDE BOX 27 – Hoof, donkey. coronary region

stratum basale (note the melanocytes and melanin pigment) and stratum spinosum

dermis


DEMO BOXES 28, 29. Equine hoof (H&E – BOX 28 & trichrome – BOX 29



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DEMO BOXES 28, 29. Equine hoof (H&E – BOX 28 & trichrome – BOX 29

CCT of the corium will stain blue and the epidermal structures will stain red



http://viewer.serenusview.com/Viewer.aspx?SlideId=ac2855bf-16d6-4076-942b-35c53b9cf299http://viewer.serenusview.com/Viewer.aspx?SlideId=f80d88a6-bb3d-48c3-811e-be82a76ef9f8

Equine hoof (H&E – BOX 28) is unique with its secondary epidermal laminae

SECONDARY LAMINAE ALLOW OR PROVIDE INCREASED SURFACE AREA FOR ATTACHMENT OF THE HOOF WALL TO BONE TO HELP SUSPEND THE WEIGHT OF THE HORSE BETWEEN THE HOOF WALL AND THE DISTAL PHALANX

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Slide #157 (GT1-63). Hoof, fetal goat ruminants do NOT possess secondary laminae (either epidermal or dermal).

primary epidermal laminae

All cloven hoofed animals (which includes pigs) will have hooves that both grossly and microscopically resemble the ruminant hoof.

Bone = SPONGY (TRABECULAR OR CANCELLOUS)

CORIUM

digital cushion

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Slide #157 (GT1-63). Hoof, fetal goat

stratum externum is composed of horn tubules (tubular horn) and intertubular horn, just like the stratum medium

primary epidermal laminae stratum externum

stratum medium

stratum medium stratum externum

Epithelium CCT

http://viewer.serenusview.com/Viewer.aspx?SlideId=680b79c0-b095-47c1-96ad-2154f107e52c

DEMO SLIDE BOX 229. Fetal goat hoof.

Primary dermal and epidermal laminae

Hyaline cartilage that forms articular cartilage

nonarticular hyaline cartilage growth plate with the four zones of cartilage

Collagenous connective tissue (CCT),

CCT that is forming tendons

Hair follicles of Integument

adnexa

http://viewer.serenusview.com/Viewer.aspx?SlideId=b1886fcc-5691-4e69-97c6-4b753c5afc4a

DEMO SLIDE BOX 159 (1089) –Developing bones and synovial joint, kitten.

primary center of ossification

Zone of reserve (resting) cartilage—this zone appears as an area of typical hyaline cartilage. Zone of proliferative chondrocytes—characterized by chondrocytes that are arranged in rows (like stacks of coins). Zone of mature (hypertrophied) chondrocytes—in this zone, both the chondrocytes and lacunae have enlarged at the expense of the matrix, reducing it (the matrix) to thin strands. Zone of calcified chondrocytes/cartilage matrix—

Zone of erosion and ossification

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DEMO SLIDE BOX 229. Fetal goat hoof. Primary dermal and epidermal laminae

Hyaline cartilage

CCT that is forming tendons

Spongy or (trabecular/cancellous) bone and Periostium


DEMO SLIDE BOX 229. Fetal goat hoof.

Integument, including adnexa: Hair Hair follicles Sebaceous glands

Integument, including adnexa:

Arrector pili muscles

bone

hoof Hyaline cartilage


DEMO BOX 216 – Cat claw.

corium

epidermis (including the strata basale, spinosum, and corneum of the wall)

claw

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DEMO BOX 216 – Cat claw.

epidermis (including the corneum of the wall, Spinosum, and strata basale)

Corium


DEMO BOX 216 – Cat claw

Region of the coronary border

Claw fold Central (dorsal) ridge

Claw plate

corium

sole

Tip of claw


http://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=2736126_joa0214-0620-f6.jpg

Slide Number 1Slide Number 2Slide Number 3Slide Number 4Slide Number 5Slide Number 6Epidermal – dermal interface� creates unique finger prints�Slide Number 8Slide Number 9Slide Number 10Slide Number 11Slide Number 12Slide Number 13Slide Number 14Slide Number 15Slide Number 16Slide Number 17Slide Number 18Slide Number 19Slide Number 20Slide Number 21Slide Number 22Slide Number 23Slide Number 24Slide Number 25Slide Number 26Slide Number 27Slide Number 28Epidermal – dermal interfaceSlide Number 30Slide Number 31Slide Number 32Slide Number 33Slide Number 34Slide Number 35Slide Number 36Slide Number 37Slide Number 38Slide Number 39Slide Number 40Slide Number 41Slide Number 42DEMO BOX 216 – Cat clawSlide Number 44

INTEGUMENTARY SYSTEM · 2020. 4. 21. · Integument adnexa . DEMO . SLIDE BOX 159 (1089)...

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