Your SlideShare is downloading. ×
Histology (Skin) - Part 2
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Histology (Skin) - Part 2

1,566
views

Published on


0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,566
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
107
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. (sweat glands(eccrine Myoepithelial cell Sweat duct Sweat gland Secretory cell
  • 2. ECCRINE AND APOCRINE GANDS
  • 3. Skin Glands
  • 4. Structures of skin: hair follicle  Invagination of epidermis  Hair contains keratin and melanin  Dermal papilla  Connective tissue invagination into bulb, has capillary network  Matrix  Germinative layer adjacent to dermal papilla  Also contains melanocytes  Sebaceous gland  Secretion empties into hair follicle(dermal papilla)  Arrector pili muscle bulb  Smooth muscle, inserts on hair follicle and base of epidermis
  • 5. THE HAIR
  • 6. The hair is formed of Shaft: medulla, cortex and cuticle The hair follicle is formed of : Inner root sheath formed of: Cuticle ,Huxleys layer,Henles layer Outer root sheath: identical with Malpighian Layer of epidermis Connective tissue sheath
  • 7. Structures of skin: hairfollicle Arrector pili muscle Sebaceous gland Dermal papilla
  • 8. Thick skin vs thin skin Thick skin  Palms and soles  Thicker epidermis  Hairless ,more sweat  glands Thin skin  Everywhere else  Thinner epidermis  Hair, sebaceous  And sweat glands
  • 9. FINGER PRINTS
  • 10. THE PANCREAS
  • 11. The Pancreas
  • 12. Exocrine part Stroma : thin C.T capsule &trabeculae. Parencaima : pancreatic acini ,lined with Pyramidal cells with apical acidophilic zymogen granules and basal basophilic striation. Secrete digestive enzymes via duct system starting by intercalated ducts.
  • 13. Pancreatic acinus
  • 14. PancreasIntercalated ducts&Centroacinar cells
  • 15. Endocrine Pancreas
  • 16. ISLETS OF LANGERHANS Non capsolated anastomosing cords of cells separated by blood sinusoids Alpha-cells 15-20um, prepheral Secrete glucacone 20 % stain pink with Gomori Beta –cells 10-15um, central in position 60-75%, Stain blue with Gomori stain Secrete insulin
  • 17.  Delta cells 2% Secrete somatostatine which supresses A,B cells and growth hormone secretion PP cells 2% secrete pancreatic polypeptide which is involved in protein and carbohydrate metabolism. Ganglion cells Involved in nervous control of islet functions.
  • 18. http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Liver/Images/pan20he.jpg
  • 19. Islets- glucagon
  • 20. Islet- insulin
  • 21. Islet-somatostatin
  • 22. Cells of islets of langerhansβ Immunohistoch emical stain δα
  • 23. Islet of langerhans
  • 24. Pancreas
  • 25. Pancreas
  • 26. Quiz? ? DO YOU KNOW
  • 27. 2. Where are the stem cells of theepidermis located? A. B. C. D. E.
  • 28. 2. What is the name of the layerslabeled (A) &(B) and (C)? A. B. C. D. E.
  • 29. The structure at the .3:pointer  A. is involved in touch sensation  B. contains unmyelinated nerve endings  C. both A and B  D. is involved in vibratory sensation  E. none of the above
  • 30. Thank you

×