MSK UL Bones and Joint overview Flashcards Preview

Laura MSK UL > MSK UL Bones and Joint overview > Flashcards

Flashcards in MSK UL Bones and Joint overview Deck (20):
1

Describe the properties of a synovial joint

Allows free motion.
Articular capsule surrounded by a synovial membrane/synovial fluid and articular cartilage

2

Describe the properties of a cartilaginous joint

Found in growth regions e.g
Hyaline cartilage = epiphyseal plates
Fibrocartilage - IVD

3

Describe the properties of a fibrous joint

Fibrous connective tissue e.g sutues in the skull
Allow no movement at all

4

What is articular cartilage otherwise known as? What does it enable?

Hyaline cartilage
Smooth movement and low friction

5

What type of cartilage are articular surfaces covered by?

Hyaline cartilage

6

By what process is hyaline cartilage replaced by bone?

Endochondral ossification

7

Name two other places hyaline cartilage is found other that articular joints

Trachea and long bones - endochondral ossification

8

What are the components of hyaline cartilage?

Proteoglycans, hyaluronic acid, type 2 collagen

9

Name one bone of the UL that undergoes intramembranous ossification

Clavicle (but it is generally flat bones)

10

Name one bone of the UL that undergoes endochondral ossification

The humerus - and lots more. All long bones

11

What is the tubercle found on the posterior side of the clavicle called?

Conoid tubercle

12

What bone is the acromion process part of?

The scapula

13

What two structures are bound tightly in the radial groove?

The radial nerve and profunda brachii artery

14

Which tubercle of the humerus is found in the outside?

The greater

15

Where does the deltoid attach to the humerus?

The deltoid tuberosity

16

What is the part of the humerus which articulates with the radius?

The capitulum

17

What is the part of the humerus which articulates with the ulna?

Trochlea

18

What is a simple definition of a tubercle?

Something that sticks out

19

What are the 3 fossas of the humerus? Where are they found and what fits in each?

Radial fossa is found on the anterior side of the humerus of the radial side - articulates with the radius
Coranoid fossa found in the anterior side on the ulna side - articulates with the coranoid process of the ulna
Olecrannon fossa on the posterior side of the humerus - in the centre - articulates with the olecrannon of the ulna

20

What are the ridges on the distal part of the humerus called?

Lateral and medial supraepicondylar ridges