Anatomy And Physiology of Human tissues

Epithelial Tissue
General Characteristics:
- Found throughout the body, covers all
body surfaces both inside and out.
- Main glandular tissue.
- Attached to underlying connective tissue
by noncellular nonliving basement
membrane.
- Usually has no vascular tissue - blood
supply
- Cells reproduce rapidly (rapid healing).

1. Tissues

2. And this
type.....

3. Epithelial Tissue
General Characteristics:
- Found throughout the body, covers all
body surfaces both inside and out.
- Main glandular tissue.
- Attached to underlying connective tissue
by noncellular nonliving basement
membrane.
- Usually has no vascular tissue - blood
supply
- Cells reproduce rapidly (rapid healing).
- Cells tightly packed together

4. Where
does all
the dead
skin you
shed go?
It takes about 27
days for the
outer layer of
skin to shed and
be replaced;
that works out to
1.5 pounds of
skin cells per
year.

5. Epithelial tissue is named based
on its description
simple = single layer
stratified = multiple layers

squamous = flat
cuboidal = square
columnar = column (rectangle)

7. Simple Squamous
Function: diffusion and filtration. Air sacs in lungs, walls of capillaries

8. Simple Cuboidal
Function: Secretion
and Absorption

Found in kidneys
tubules, ducts and
covering the ovaries

9. Stratified cuboidal epithelium

10. Simple Columnar
Function:
Secretion and
Absorption

Found in
Digestive tract
and uterus

*Contains goblet
cells to secrete
mucus

*Can have
microvilli

11. Stratified Squamous
Multi layer squamous, functions
in protection

Found in skin and mouth

12. The ink of tattoos must be injected
below the basement membrane.

13. Tissues often come in
layers on the body -
superficial cuts on the
skin may need to be
stitched if they also go
through the underlying
tissue.

This will definitely need
stitches!

14. Pseudostratified Columnar
Single layer, nuclei are uneven which gives it a
layered appearance

Can have goblet cells and cilia

Location: lining
air passages
and tubes of
the
reproductive
system

15. Transitional Epithelium
Stretchable

Blocks diffusion (no leaking)

Found in the urinary bladder

16. Glandular Epithelium
Cells are specialized to
produce and secrete substances

They make up the GLANDS

exocrine glands | endocrine glands

salivary, sweat hormones

17. Identify the tissues

24. Connective Tissue
General Characteristics:
-Most abundant tissue in your body, found
throughout
-Binds structures together
-Provides support, protection, framework, fills
space, stores fat, produces blood cells, fights
infection, and helps repair tissue.
-Composed of more scattered cells with abundant
intercellular material ' matrix
-Made up of a ground substance (fluid, semi-solid)
and fibers
-Most has a good blood supply
-Cells can reproduce

25. Types of Cells in Connective Tissue
●Mast cells (prevents clots)
●Macrophages (consumers)
●Fibroblasts (produce fibers)
Collagenous (bones,
ligaments, tendons)

Elastic (respiratory)

28. Main types of Fibers
Collagenous fibers - strong
and flexible

bones, tendons and
ligaments


Elastic fibers - very flexible,
ears and vocal cords

29. Categories of Connective Tissue

30. Loose Connective Tissue or Areolar Tissue
Binds underlying
organs to skin
and to each other

Forms delicate
thin membranes
throughout the
body

32. Adipose Tissue (fat)

34. Fibrous Connective Tissue
Tendons =
muscles to bones

Ligaments =
bones to bones

36. DENSE CONNECTIVE TISSUE

CARTILAGE

Cartilage cells are called
chondrocytes

Provides support and attachments,
also cushions bones

37. Hyaline Cartilage
Covers ends of joints, nose and respiratory
passages

38. Elastic cartilage
External Ear and
Larynx

39. Hyaline cartilage

40. Hyaline cartilage

41. Fibrocartilage
Tough, shock absorbing

42. Bone Tissue (Osseus)

43. Blood Tissue

44. Muscle Tissue

45. Cardiac muscle

46. Skeletal muscle

47. Smooth muscle

49. Nerve Tissue

50. Nervous tissue (spinal cord)