5 Bone growth, Joints tissues and structures Flashcards
Describe the general principles of bone growth • Describe the microanatomy of tissues in the joints, and explain how their structure reflects function • Describe fibrous and cartilaginous joints (29 cards)
Bone growth term
Endochondral ossification
process of turning cartilage into bone
When deos Bone growth start
6 weeks after fertilisation
Primary ossification centre
Diaphysis (shaft)
Epiphyses?
remain cartilage
separates from diaphysis by epiphyseal
what allows bone growth in lenght
epiphyseal aka growth plates
when do epiphyses start to fuse
puberty
What does Osteoblast activity produces
circumferential lamellae
Who mould bone shape
Osteoclasts
4 things joint do
holds bones together
involves bone ends
involves soft tissues
control of movement
2 categories of key soft tissues
Cartilage
DFCT
2 key types of Cartilage in joints
Hyaline
Fibrocartilage
2 main Functions of Hyaline
resist compression
creates smooth surface
where is Hyaline located
Moulded to surfaces of bones where they articulate
Function of Fibrocartilage
resists compression and tension
(acts as shock absorber)
3 characteristics of DFCT
slow to heal
fibroblasts
tightly packed
Who connects bone to bone
Ligaments
2 things present in ligaments
Collagen and elastin
Who connects muscle to bone
Tendons
what does tendons do
facilitates and controls movement
(contraction of muscles transmitted to bone)
least amount of movement
Fibrous
Most amount of movement
Synovial
cells grouped together in a highly organised manner according to specific structure and function
Tissue
Structure
something formed of a tissue
ex. ligament
Fibrous joint are what type of tissue
DFCT
