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Slot 3.40 - Thick skin A = epidermis B = dermis P = Pacinian corpuscle Arrows = sweat glands Papillary layer of dermis Stratum corneum Sweat gland duct.

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Presentation on theme: "Slot 3.40 - Thick skin A = epidermis B = dermis P = Pacinian corpuscle Arrows = sweat glands Papillary layer of dermis Stratum corneum Sweat gland duct."— Presentation transcript:

1 Slot Thick skin A = epidermis B = dermis P = Pacinian corpuscle Arrows = sweat glands Papillary layer of dermis Stratum corneum Sweat gland duct Arrows = stratum granulosum Stratum germinativum

2 Slot Nail sections (Note: nail plate and nail bed)

3 Slot Hair follicle (c.s.)

4 Slot Hair follicle sections M = medulla; C = cortex; HC & RC = cuticle; He & Hu = internal root sheath; T&P = external root sheath; G, 1&2 = dermal root sheath` M = matrix; HR = hair root; P = dermal papilla; I&O = int &ext root sheaths; D = dermal root sheath

5 Slot Sebaceous gland Arrows = basal cells (equivalent of stratum germinativum)

6 Slot Sweat glands and myoepithelial cells Arrows = myoepithelial cells

7 Slot Lateral incisor tooth Periodontal membrane = dense regular CT

8 Slot Tooth (high power) D = dentin E = enamel C = cementum

9 Slot Odondoblast

10 Slot Ameloblast

11 Slot Tooth development Enamel organ 2  tooth bud Enamel Pulp Ameloblasts Odontoblasts OEE

12 Slot Thick skin Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum germinativum Papillary layer of dermis

13 Slot Thick skin Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum germinativum Papillary layer of dermis

14 Slot Thin skin (non-pigmented and pigmented) Note pigment in stratum germinativum Stratum corneum

15 Slot Fingernail Nail plate Nail bed Bone of finger

16 Slot Fingernail Nail plate Nail bed

17 Slot Hair follicle (l.s.) Hair matrix Dermal papilla External root sheath Internal root sheath

18 Slot Hair follicle (c.s.) Cortex External Root Sheath CT Sheath

19 Slot Hair follicle (l.s.) Medulla Cortex Cuticle Internal Root Sheath External Root Sheath CT Sheath

20 Slot Sebaceous gland

21 Slot Sweat gland

22 Slot Lip (vertical section) Vermilion Border Hair of Chinny-chin-chin

23 Slot Tooth (high power) Enamel Cementum Dentin

24 Slot Tooth (early development of enamel organ) Inner Enamel Epithelium Outer Enamel Epithelium Enamel Pulp

25 Slot Tooth (odontoblasts and dentin) Odontoblasts Dentin Mesenchyme

26 Slot Tooth (dentinal processes) Dentin Odontoblast processes

27 Slot Tooth (dentinal processes, c.s.) Odontoblast processes Dentin

28 Slot Tooth (periodontal membrane, cementum and alveolar bone) Dentin Cementum Periodontal membrane Alveolar bone

29 Slot 3.68 – Tooth buds (early enamel organs) Early tooth buds (enamel organ) Tongue

30 Slot Tooth development DentinEnamel

31 Slot Tooth development (enamel organ) Inner Enamel Epithelium (ameloblasts) Outer Enamel Epithelium Enamel Pulp

32 Slot Tooth development (later enamel organ) Enamel Ameloblasts Dentin Odontoblasts Odontoblast processes

33 Slot Pacinian corpuscle (pressure receptors)

34 Slot Pacinian corpuscle (pressure receptors) Nerve endings Modified Schwann cells

35 Slot Pacinian corpuscle (c.s.) Nerve endings Modified Schwann cells


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