Ch.4 Connective tissue

Question 1

Connective Tissues

Answer 1

Are tissues which connect, support, transport or store materials.
It consists of cells and a matrix.

Question 2

matrix

Answer 2

is the structural network or solution of non-living intercellular material. Ex: blood plasma

Question 3

Types of Connective Tissues

Answer 3

1. Blood (liquid tissue)
2. Adipose (fat)
3. Areolar (loose)
4. Fibrous
5. Elastic
6. Bone
7. Cartilage

Question 4

Areolar Connective Tissue
( or Loose Connective Tissue)

Answer 4

Location- subcutaneous tissue under the dermis.
Function- connects skin to muscle and contains many WBC’s.
Matrix - the protein fibers: collagen (strong) and elastin (flexible).
Fibroblasts are the cells which produce the protein fibers.

Question 5

Adipose Tissue

Answer 5

Two types- white fat and brown fat
White fat- storage of extra energy as triglycerides.Brown fat- more common in infants, brown generates heat!
Location- subcutaneously in the areolar connective tissue.
Function- store energy, cushion or protection, insulation and heat production (brown fat).

Adipocytes- fat cells which are specialized to store extra energy as fat droplets.

Question 6

Fibrous Connective Tissue

Answer 6

Location- outer wall of arteries, tendons and ligaments.
Function- great strength and flexibility
*Consists mainly of parallel collagen fibers *
Very strong

Question 7

Elastic Connective Tissue

Answer 7

Location- walls of large arteries and lungs
Function- recoil or snap-back aids in exhalation and maintaining blood pressure.
Consists primarily of elastin fibers
Flexible, creates recoil from its stretchiness

Question 8

bone

Answer 8

Location- skeleton
Function- support, protection, produce blood cells and storage for calcium
Osteocytes- bone cells
Matrix- calcium salts and collagen fibers
Haversian system or Osteon- is a system of arrangements of osteocytes, matrix and blood vessels.

Question 9

cartilage

Answer 9

Location- joint surfaces, nose, ear, trachea and spine
Function- prevent friction, support and cushion.
Smooth and flexible but very strong.
No direct blood supply nutrients must diffuse through the matrix, so repair is slow.
Chondrocytes- cartilage cells which produce cartilage matrix.

Question 10

blood

Answer 10

Locations- blood vessels and tissues
Functions- transport material, carry oxygen and CO2, destroy pathogens and prevents blood loss.
consists of cells and plasma.
matrix- Plasma
Hemopoietic tissue- blood forming tissue (red bone marrow and lymphatic tissue).
Erythrocytes- red blood cells, 38-48% of blood volume, carry oxygen.