Lecture3: Microstructure Of Musculoskeletal Elements

Question 1

What 2 layers make up the perichondrium?

Answer 1

Outer fibrous and inner neural

Question 2

What is the function of perichondrium?

Answer 2

The growth of cartilage at its periphery and nourishment of chondrocytes

Question 3

What is the extra-cellular matrix of the cartilage responsible for?

Answer 3

Firmness and flexibility

Question 4

Which layer of the perichondrium are chondrocytes found?

Answer 4

Inner cellular

Question 5

What do chondroblasts look like?

Answer 5

Flattened oval cells

Question 6

What are chondroblasts function?

Answer 6

Appositional growth (secretion of cartilage matrix)

Question 7

What do chondroblasts secrete?

Answer 7

Chondrocytes

Question 8

What do younger chondrocytes look like and where are they?

Answer 8

Flat and elliptical, more so towards the perichondrium

Question 9

What do mature chondrocytes look like and where are they?

Answer 9

Round and deeper at the bottom

Question 10

What is the chondrocyte function?

Answer 10

Interstital growth (maintenance of cartilage matrix)

Question 11

What do Hyaline Cartilages look like?

Answer 11

Smooth and firm with a glassy appearance

Question 12

What describes Elastic cartilage?

Answer 12

Very flexible and can bear mechanical stress

Question 13

Where are Elastic Cartilages found?

Answer 13

Ear pinna, epiglottis, external auditory meatus

Question 14

What do the cells look like in elastic cartilage?

Answer 14

Numerous and crowded

Question 15

What describes White Fibro Cartilage?

Answer 15

Best in class strength and never at the perichondrium

Question 16

Where are White Fibro Cartilages found?

Answer 16

At joints

Question 17

Where does White Fibro cartilage get its nutrition from?

Answer 17

Surrounding dense CT

Question 18

Which muscle type is non-striated?

Answer 18

Smooth muscle