1. Pages 50 – 56

2. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
 Supporting connective
tissue with tensile
strength and
supporting fibers of
collagen in the ground
substance

3. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
• Firmer than connective
tissue proper
• Has no blood supply
• Thin matrix
• Found in nose, ear,
larynx
• Often replaced by bone

4. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
Chondroblasts – immature
cartilage cells that produce
the matrix fibers.

5. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
Chondrocytes – mature
chondroblast that become
trapped in matrix and live
in hollow spaces called
lacuna in the cartilage
tissue.

6. Lacuna (histology),
a small space
containing an
osteocyte in bone
or chondrocyte in
cartilage

7. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3 types of cartilage:
A. Hyaline cartilage
 occurs at end of bones, external
ear, fetal skeleton, nose, ribs and
vertebrae
 Weakest and most common

8. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3 types of cartilage:
B. Elastic cartilage
 found in epiglottis and external
ear
 contains elastic fibers
 great flexibility and is able to
withstand repeated bending

9. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3 types of cartilage:
C. Fibrous cartilage
 Strongest
 Dense collagen fibers with limited
ground substance
 Found in disk between vertebrae and
skull
 Where bears great amount of weight
 Has fibrous appearance

10. CONNECTIVE TISSUE - Cartilage

11. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone:
 Hardest connective
tissue
 Consist of cells, collagen
fibers, and mineralized
(calcium and phosphate)
ground substance

12. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone:
 Ground substance
becomes hard or
calcified through a
process known as
calcification

13. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone:
 Has a rich blood supply
 Properly known as
osseous tissue

14. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone
Types of bone cells:
A. Osteoblasts- make
components of bone

15. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone
Types of bone cells:
B. Osteocytes – mature
osteoblasts found in
lacuna

16. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone
Types of bone cells:
C. Osteoclasts – reasorb
bone and remodel it

18. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone
4. Blood
 transports
 Also known as vascular
tissue
 Two types of cells – red
and white

19. CONNECTIVE TISSUE
TYPES:
1. connective tissue proper
2. Cartilage
3. Bone
4. Blood
 Ground substance =
proteins in blood
 Has fluid part – blood
plasma
 Has clotting fibers

20. QUIZ

21. New Topic: Membranes
Membrane = layers of
tissue
There are three categories of
membranes:

22. New Topic: Membranes
There are three categories of membranes:
1. Mucous
 found in linings of organ
systems that open to the outside

24. New Topic: Membranes
There are three categories of membranes:
2. Serous
 are covered by a thin layer of
serous fluid that lubricates and is
secreted by the epithelium

25. New Topic: Membranes
There are three categories of membranes:
3. Synovial membranes
 connective tissue membranes that
line the cavities of the freely
movable joints such as the shoulder,
elbow, and knee.

27. New Topic: Membranes
There are three categories of membranes:
3. Synovial membranes
secrete synovial fluid into the joint
cavity, and this lubricates cartilage
on the ends of the bones so that
they can move freely and without
friction.

28. New Topic: tissue repair
Remember: Tissues are made up of
cells.
Two types of cells that make up tissue
based on function:
1. Stromal cells – provide structure and
support to tissue; usually connective
tissue

29. New Topic: tissue repair
Remember: Tissues are made up of cells.
Two types of cells that make up tissue based on function:
1. Stromal cells – provide structure and support to tissue
2.Parenchymal cells – cells that
actually perform the function of
the tissue

30. Organ Parenchyma
kidney nephron
alveoli, respiratory
bronchiole, alveolar
lungs
duct and terminal
bronchiole
white pulp and red
spleen
pulp
brain neuron
liver hepatocyte

31. New Topic: tissue repair
Categories of cells based on ability to
reproduce or regenerate:
1. Labile cells
 cells that multiply constantly
throughout life
 Most of cells in body
 ex. Parenchymal epithelial cells
replace themselves quickly

32. New Topic: tissue repair
Categories of cells based on ability to reproduce or regenerate:
2. Stable cells
 only multiply when receive
external stimulus to do so
 ex. Bone parenchymal cells
when a bone is broken can
reproduce and repair the broken
bone