1. EPITHELIAL TISSUE COVERING OR PROTECTICE TISSUE
COVERS ORGANS AND CAVITIES
SEPARATES DIFFERENT BODY SYSTEMS
MAKES THE SKIN, LINING OF MOUTH, LINING OF BLOOD VESSELS, LUNG ALVEOLI, KIDNEY TUBULES

2. EPITHELIAL TISSUE CELLS ARE TIGHTLY PACKED FORM A CONTINUOUS SHEET
HAVE SMALL AMOUNT OF CEMENTING MATERIAL BETWEEN THEM
ALMOST NO INTERCELLULAR SPACES
ALL EPITHELIUM IS SEPARATED FROM THE UNDERLYING TISSUE BY AN EXTRACELLULAR FIBROUS BASEMENT MEMBRANE

4. PERMEABILITY OF EPITHELIAL CELLS
ALL MATERIALS ENTERING OR LEAVING THE BODY MUST CROSS AT LEAST ONE LAYER OF EPITHELIUM.
PERMEABILITY OF EPITHELIAL CELLS REGULATE THE EXCHANGE OF MATERIALS BETWEEN
THE BODY AND EXTERNAL ENVIRONMENT.
THE DIFFERENT PARTS OF THE BODY.

5. CO RELATION BETWEEN STRUCTURE AND FUNCTION OF EPITHELIAL TISSUE
TYPES OF EPITHELIUM
CO RELATION BETWEEN STRUCTURE AND FUNCTION
OF EPITHELIAL TISSUE

6. SQUAMOUS EPITHELIUM

7. SQUAMOUS EPITHELIUM EXTREMELY THIN AND FLAT CELLS
FORM A DELICATE LINING.
PRESENT IN OESOPHAGUS, LINING OF MOUTH, SKIN
STRATIFIED SQUAMOUS EPITHELIUM – IN SKIN – CELLS PRESENT IN MANY LAYERS TO PREVENT WEAR AND TEAR.

8. STRATIFIED SQUAMOUS EPITHELIUM

9. CUBOIDAL EPITHELIUM

10. CUBOIDAL EPITHELIUM CUBE SHAPED CELLS
PRESENT IN LINING OF KIDNEY TUBULES, SALIVARY GLANDS FOR MECHANICAL SUPPORT

11. COLUMNAR EPITHELIUM

12. COLUMNAR EPITHELIUM TALL EPITHELIAL CELLS. ARE PILLAR LIKE
HELP IN ABSORPTION AND SECRETION, EX: INNER LINING OF INTESTINE
CILIATED COLUMNAR EPITHELIAL CELLS – IN RESPIRATORY TRACT – COLUMNAR CELLS HAVE CILIA (HAIR LIKE PROJECTIONS). MOVEMENT OF CILIA PUSHES THE MUCUS FORWARD TO CLEAR IT

13. GLANDULAR EPITHELIUM
A PORTION OF THE EPITHELIAL TISSUE FOLDS INWARD AND FORMS MULTICELLULAR TISSUE GLAND.

15. CONNECTIVE TISSUE LOOSELY SPACED CELLS
CELLS ARE EMBEDDED IN AN INTERCELLULAR MATRIX
MATRIX CAN BE JELLY LIKE / FLUID / DENSE / RIGID DEPENDING UPON FUNCTION OF TISSUE

16. BLOOD BLOOD IS A TISSUE IT IS A CONNECTIVE TISSUE
IT TRANSPORTS GASES, DIGESTED FOOD, HORMONES AND WASTES TO DIFFERENT BODY PARTS

17. TYPES OF BLOOD CELLS

18. BONE BONE IS A CONNECTIVE TISSUE
FORMS A FRAMEWORK THAT SUPPORTS THE BODY
ANCHORS THE MUSCLES
SUPPORTS BODY ORGANS
IS STRONG
NON – FLEXIBLE
EMBEDDED IN HARD MATRIX OF CALCIUM AND PHOSPHORUS

19. BONE

22. LIGAMENT CONNECTS TWO BONES VERY ELASTIC HAS CONSIDERABLE STRENGTH
HAVE VERY LITTLE MATRIX

23. TENDONS CONNECT MUSCLES TO BONES IS A FIBROUS TISSUE
HAS GREAT STRENGTH
LIMITED FLEXIBILTIY

24. CARTILAGE HAS WIDELY SPACED CELLS
SOLID MATRIX IS COMPOSED OF PROTEINS AND SUGARS
IT SMOOTHENS BONE SURFACES AT JOINTS
PRESENT IN NOSE, EAR, TRACHEA, LARYNX
IT CAN BE EASILY FOLDED (TRY TO FOLD YOUR EARS!)

26. HYALINE CARTILAGE

27. AREOLAR TISSUE IS A CONNECTIVE TISSUE
BETWEEN SKIN AND MUSCLES, AROUND BLOOD VESSELS AND NERVES, IN BONE MARROW
IT FILLS INNER SPACES OF ORGANS
HELPS IN REPAIR OF TISSUES

28. AREOLAR CONNECTIVE TISSUE

29. ADIPOSE TISSUE

30. ADIPOSE TISSUE FAT STORING TISSUE FOUND - BELOW THE SKIN
- BETWEEN INTERNAL ORGANS
CELLS ARE FILLED WITH FAT GLOBULES
ACTS AS AN INSULATOR BECAUSE OF PRESENCE OF FATS

31. MUSCULAR TISSUE CONSIST OF ELONGATED CELLS CALLED MUSCLE FIBRES
HELPS IN BODY MOVEMENTS
HAS CONTRACTILE PROTEINS – CONTRACT AND RELAX TO CAUSE MOVEMENT

32. VOLUNTARY MUSCLES / SKELETAL MUSCLES / STRIATED MUSCLES
THOSE MUSCLES WHICH WE CAN MOVE BY CONSCIOUS WILL
OUR LIMBS (HANDS, LEGS)
ATTACHED TO THE SKELETON
UNDER THE MICROSCOPE, THEY SHOW ALTERNATE DARK AND LIGHT BANDS OR STRIATIONS
HAVE LONG, CYLINDRICAL, UNBRANCHED AND MULTINUCLEATE CELLS (MANY NUCLEI)

33. STRIATED MUSCLE

34. INVOLUNTARY MUSCLES/ SMOOTH MUSCLES
MOVEMENT OF FOOD IN ALIMENTARY CANAL
CONTRACTION OR RELAXATION OF BLOOD VESSELS
IRIS OF EYE
URETERS
BRONCHI
WE CAN’T START OR STOP THEM WHEN WE WISH
LONG CELLS WITH POINTED ENDS – SPINDLE SHAPED
UNINUCLEATE (SINGLE NUCLEUS)
UNSTRIATED (NO DARK OR LIGHT BANDS)

35. SMOOTH MUSCLE

37. CARDIAC MUSCLES (HEART MUSCLES)
PRESENT IN HEART
SHOW RHYTHMIC CONTRACTION AND RELAXATION
INVOLUNTARY
CYLINDRICAL
BRANCHED
UNINUCLEATE

38. CARDIAC MUSCLE

39. NERVOUS TISSUE HIGHLY SPECIALIZED CELLS
THEY GET STIMULATED AND THEN TRANSMIT THE STIMULUS RAPIDLY FROM ONE PLACE TO ANOTHER IN OUR BODY
COMPOSES THE BRAIN, SPINAL CORD AND NERVES
CELLS ARE CALLED NERVE CELLS OR NEURONS

40. NEURON – UNIT OF NERVOUS TISSUE

41. NEURON CONSISTS OF – CELL BODY – HAS NUCLEUS AND CYTOPLASM
LONG HAIR LIKE BRANCHED STRUCTURES ARISE FROM CELL BODY CALLED DENDRITES
NEURON HAS A SINGLE, LONG PART CALLED AXON
NEURON MAY BE UPTO 1 METRE LONG
MANY NERVE FIBRES BIND UP TOGETHER WITH THE HELP OF CONNECTIVE TISSUE TO FORM A NERVE
NERVE IMPULSES ALLOW US TO MOVE OUR MUSCLES WHEN WE WANT TO.