Previous lectures

Question 1

What are osteons and what are its job?

Answer 1

Osten are longitudinal units within compact bone

—> maintaining osteocytes by providing nutrients

Question 2

What are lammelle?

Answer 2

tubes of ECM with
collagen fibres aligned to resist
forces
• Lamellae form a series of cylinders
running longitudinally down shaft=
forming the Osteon

Question 3

What are canalicui?

Answer 3

channels for

osteocytes through ECM

Question 4

What is the structure of cancellous bone?

Answer 4

Trabeculae
Ø Struts of lamella
bone
• Marrow fills the
cavities
• Osteocytes
housed in lacuna
on surfaces of
trabeculae

Question 5

COmponant of Fibrocartilage?

Answer 5

Can adapt its shape to stresses on joint during movements

Question 6

What are ligaments and what are there function?

Answer 6

Connect bone to bone
ØFunction = restrict
movement
ØMovement is restricted
‘away from itself ‘

Question 7

What are tendons and what are there function?

Answer 7

Attach muscle to bone

• -> Facilties and controls movement
• -> Contraction

Question 8

What is range of movement determined by?

Answer 8

Bone-end shape
• Ligament location and
length
• Body surface contact