cell biology & histology

Question 1

In what 2 ways does cartilage differ from other types of connective tissue?

Answer 1

• no nerves in extracellular matrix
• no blood vessels in extracellular matrix (due to it’s secretion of antiangiogenesis factor)

Question 2

List 5 types of mature connective tissue (classification scheme per Tortora, p. 74)

Answer 2

• loose connective tissue
  
  • areolar
  • adipose
  • reticular
• dense connective tissue
  
  • regular CT
  • irregular CT
  • elastic CT
• bone
• cartilage
  
  • hyaline
  • fibrocartilage
  • elastic cartilage
• liquid
  
  • blood
  • lymph

Question 3

What are the 2 main components of the centrosome?

Answer 3

• centrioles:
  
  • 2 polymers of microtubules arranged at right angles to ea. other
  • 9 triplets of microtubules
• pericentriolar material- ring-shaped complexes of tubulin