Lecture 18 Flashcards
What are the negative aspects of an avulsion fracture?
It will interrupt with the growth of the bone due to potential damage near the epiphysial growth plate
What is the most mobile joint?
Shoulder
What are the different types of joints?
Dictated by the type of material that disconnects the bones.
Fibrous tissue joints
- Suture - b/w skull bones
- Syndesmosis - fibrous tissue linking
- Gomphosis - tooth held in socket by periodontal ligament
Cartilage joints
- “primary” (dissapear during development
- “Secondary” (wedge of fibrocartialge b/w layers of hyaline cartilage)
True or False.
Fibrous Joints permit a lot of movement.
FALSE
True or False
Cartilagenous joints are capable of being squashed
True
Where are fibrous joints located?
Skull (mouth, teeth) and lower limb
Cartilaginous joints tends to be where in the body
in the Midline
Synovial joints tend to be associated with the limbs & Limb girdles
Sattigal movements are always ______ types of movement
Flexion and Extension
Label this
Where does the Fibrous Capsule in a synovial joint usually attach?
At the site of epiphysial plate
The Fibrous capsule is reinforced by __________
lingamentous thickenings
Fibrous capsules have a rich ____
and a poor ______
Rich nerve supply
Poor Blood supply
(means they will repair slowly)
What are ligaments composed of?
Collagen fibres, designed to resist tensile forces
Intrinsic Ligaments do what and are where?
reinforce caspule from within
Extrinsic are seperate from capsule (extracapsular)
Effusion, in regards to injury of synovial membrane is…
Irritation of membrane, whihc leads to swelling
because of increased production of fluid
A tear of the synovial joint, and bleeding into the joint is called..
Haemarthrosis
Joint will feel HOT.
What is the Labrum?
Menisci and discs are both ________
Fibrocartilage
Outer part gets a blood supply from the periphery
(1/3) with blood supply
Bursae are suseptible to ____
Irritation or infection.
Burtitis (inflammation)
- but meant to reduce friction (and communicate with joint cavity in some situations)
