Skin Plaque

1

Stratum Corneum: Keratinized, 20-30 layers of dead keratinocytes.

2

STRATUM LUCIDUM: Protective barrier to the palms of the hands.

3

STRATUM GRANULOSUM: Contains Lamellated Granules that form a waterproof barrier.

4

STRATUM SPINOSUM; binding several layers of Keratinocytes.

5

STRATUM BASALE:

One row of actively mitotic stem cells giving rise to the stratum layers.

A

PAPILLARY LAYER; Highly vascularized, nourishes the cells of the epidermis.

6

RETICULAR LAYER; Contains Skin accessory organs, like sweat and sweat glands

7

Hypodermis

8

HAIR SHAFT

9

Longitudinal Section of Hair

10

Sebaceous Gland; Moistens Hair

11

Longitudinal Section of Oil Gland

12

FOLLICLE

13

Longitudinal Section of Hair Root

14

External Root Sheath: a layer of the follicle

15

Internal Root Sheath; a layer of the follicle

16

Medulla

17

Papilla of Hair; Nourishes growing hair

18

Vein: blood supply of Hair

19

Artery: blood supply of the Hair

20

Hair Arrectori Pili Muscle: EXERTS PRESSURE ON SEBACEOUS GLAND

21

Duct of Sweat Gland

22

ECCRINE SWEAT GLAND: PRODUCE PERSPIRATION

23

Longitudinal Section of the duct of Eccrine Sweat Gland

24

Longitudinal Section of the Glomerulus of Eccrine Sweat Gland

25

Vascular Papilla of Corium

26

Vein: blood supply of Corium

27

Artery: blood supply of the Corium

28

MEISSNER’S CORPUSCLE: responds to light pressure and discriminative touch.

29

Free Dendritic Nerve Ending; Touch, pain, temperature change, and pressure reception

30

MERKEL DISCS: Detects continuous light touch.

31

CORPUSCLE OF RUFFINI; tactile reception to stretching of the skin.

32

BULB OF KRAUSE: Tactile reception to low-frequency vibration.

33

PACINIAN CORPUSCLE; Deep pressure reception

7

EPIDERMIS: protection against the sun, water loss, and bacterial invasion.

35

DERMIS: provides temperature regulation and sensory reception.