Lecture 18

Question 1

What are the negative aspects of an avulsion fracture?

Answer 1

It will interrupt with the growth of the bone due to potential damage near the epiphysial growth plate

Question 2

What is the most mobile joint?

Answer 2

Shoulder

Question 3

What are the different types of joints?

Answer 3

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)

Question 4

True or False.

Fibrous Joints permit a lot of movement.

Answer 4

FALSE

Question 5

True or False

Cartilagenous joints are capable of being squashed

Answer 5

True

Question 6

Where are fibrous joints located?

Answer 6

Skull (mouth, teeth) and lower limb

Question 7

Cartilaginous joints tends to be where in the body

Answer 7

in the Midline

Synovial joints tend to be associated with the limbs & Limb girdles

Question 8

Sattigal movements are always ______ types of movement

Answer 8

Flexion and Extension

Question 9

Label this

Answer 9

Question 10

Where does the Fibrous Capsule in a synovial joint usually attach?

Answer 10

At the site of epiphysial plate

Question 11

The Fibrous capsule is reinforced by __________

Answer 11

lingamentous thickenings

Question 12

Fibrous capsules have a rich ____

and a poor ______

Answer 12

Rich nerve supply

Poor Blood supply

(means they will repair slowly)

Question 13

What are ligaments composed of?

Answer 13

Collagen fibres, designed to resist tensile forces

Question 14

Intrinsic Ligaments do what and are where?

Answer 14

reinforce caspule from within

Extrinsic are seperate from capsule (extracapsular)

Question 15

Effusion, in regards to injury of synovial membrane is…

Answer 15

Irritation of membrane, whihc leads to swelling

because of increased production of fluid

Question 16

A tear of the synovial joint, and bleeding into the joint is called..

Answer 16

Haemarthrosis

Joint will feel HOT.

Question 17

What is the Labrum?

Question 18

Menisci and discs are both ________

Answer 18

Fibrocartilage

Outer part gets a blood supply from the periphery

(1/3) with blood supply

Question 19

Bursae are suseptible to ____

Answer 19

Irritation or infection.

Burtitis (inflammation)

• but meant to reduce friction (and communicate with joint cavity in some situations)