Chapter 4 Connective Tissues

Question 1

Areolar tissue

Answer 1

1. Loose connective tissue
2. Scattered cells: fibroblast, adipocytes, mast cells, & macrophages
3. Matrix: Ground substance: Hyaluronic acid Fibers: collagen, elastic, & reticular
4. Location: directly below epithelial tissue almost always below basement membrane
5. Function: blood supply to epithelium, padding

Question 2

Adipose Tissue

Answer 2

1. Loose connective tissue
2. Scattered cells: adipocytes, mast cells
3. Matrix: Ground substance: hyaluronic acid Fibers: collagen & elastic
4. Location: subcutaneous tissue & around organs
5. Function: protection(padding), insulation, & energy source

Question 3

Reticular Tissue

Answer 3

1. Loose connective tissue
2. Scattered cells: reticular cells
3. Matrix: Ground substance: hyaluronic acid Fibers: reticular
4. Location: framework of lymph nodes and organs like the spleen
5. Function: provide framework for the organ

Question 4

Dense Regular Tissue

Answer 4

1. Dense connective tissue
2. Scattered cells: fibroblasts
3. Matrix: Ground substance: very little Fibers: collagen fibers
4. Locations: tendons & ligaments
5. Function: dense regular tissue sting yet flexible

Question 5

Dense Irregular Tissue

Answer 5

1. Dense connective tissue
2. Scattered cells: fibroblasts
3. Matrix: Ground substance: very little Fibers: collagen
4. Location: dermis, periosteum
5. Function: dense irregular tissue is strong in several directions

Question 6

Elastic Connective Tissue

Answer 6

1. Elastic connective tissue
2. Scattered cells: fibroblasts
3. Matrix: Ground substance: very little Fibers: elastic fibers
4. Location: elastic arteries, true vocal cords
5. Stretch & recoil

Question 7

Cartilage

Answer 7

1. Has no blood vessels or nerve supply
2. Scattered cells: chondrocytes located in lacunae
3. Matrix: varies for each cartilage Ground substance: chondroitin sulfate & glucosamine
4. Location:
   a. Fibrous cartilage: meniscus, symphysispubis, intervertebral discs
   b. Hyaline cartilage: embryonic skeleton, ends of long bones, trachea, nose, costal cartilage
   c. Elastic cartilage: ear
5. Function: withstanding physical stress

Question 8

Bone Tissue

Answer 8

1. Hard connective tissue arranged in osteons
2. Scattered cells: osteoblasts, osteoclasts, osteocytes. Cells are located in lacunae. They connect with Haversian canal via canaliculi
3. Matrix: Ground substance: inorganic calcium salts & other ionic salts Fibers: collagen & elastic fibers
4. Location: compact bone
5. Function: support, calcium storage & movement

Question 9

Blood

Answer 9

1. Liquid connective tissue
2. Scattered cells: RBC & WBC
3. Matrix: Ground substance: plasma(water) Fibers: nine unless it clots
4. Location: blood vessels
5. Function: transport of oxygen & nutrients, carries waste from organs to be eliminated

Question 10

Lymph

Answer 10

1. Liquid connective tissue
2. Scattered cells: WBC
3. Matrix: Ground Substance: lymph(water) Fibers: none
4. Location: lymph vessels
5. Function: immunity, carry away excess interstitial fluid