Connective Tissue

Question 1

Name the different types of connective tissue

Answer 1

Blood 
Bone 
Loose fibrous 
Dense fibrous
Cartilage

Question 2

Describe the appearance of a fibroblast cell

Answer 2

Plump spindle shaped, basophillic cytoplasm, full of ribosomes and has a large nucleus

Question 3

Describe the function of a fibroblast

Answer 3

Makes fibres and ground substance, they form all connective tissue. Also responsible for collagen and GAG production (glucosaminoglycans)

Question 4

Describe the appearance of a fibrocyte

Answer 4

Elongated spindle shaped whispy connective tissue with a condensed nucleus

Question 5

Describe the function of a fibrocyte

Answer 5

Maintains fibres and ground substance

Question 6

Describe the components of loose connective tissue

Answer 6

Made up of fibrocytes that are whispy with small condensed nucleus. White space is ground substance. Fibres can be collagenous, reticular or elastic.

Question 7

Describe the components of dense regular connective tissue

Answer 7

The fibres run vertically and there are more fibres than cells (fibrocytes). Fibres are arranged in linear bundles. (It forms tendons and ligaments)

Question 8

Describe the components of dense irregular connective tissue

Answer 8

Lots of fibres running in every direction, there are more fibres than cells (fibrocytes).
Forms the dermis of the skin and organ capsulals

Question 9

Describe the components of cartilage

Answer 9

Made of ground substance, cells (condroblasts) matrix (very dense) of Collagen fibre and lacunae.
Chondrocytes may be present in mature cartilage.

Question 10

What is endochondrial ossification?

Answer 10

The process when mesemchymal stem cells become a chondroblast, then a chondrocyte which is the end stage.

Question 11

Describe the components of hyaline cartilage

Answer 11

Chondrocytes in lacunae and a matrix (an aqueous gel containing proteoglycans). You can usually see a deep middle and superficial zone.

Question 12

Define endochondrial ossification, and describe the steps

Answer 12

It is when bone develops from a cartilagenous model.
1 chondrocytes proliferate
2 cartilage matrix mineralises
3 chondrocytes die
4 blood vessels invade
5 osteoblasts deposit bone on cartilage matrix, which forms the primary trabeculae of bone
6 osteoclasts and osteoblasts remodel the primary trabelculae to form secondary trabaculae

Question 13

Haematapoesis; define

Answer 13

Haematapoesis is the formation of blood cellular components. It Occurs in the liver and bone marrow in the foetus, and the red marrow of the adult bone