Lecture2: Joints

Question 1

What is Gomphosis?

Answer 1

When the bones are separated by moderate amount of fibrous tissue

Question 2

Examples of Gomphosis?

Answer 2

Teeth and Jaws

Question 3

What is Syndesmosis?

Answer 3

When the bones are separated by large amounts of fibrous tissue

Question 4

Example of Syndesmosis?

Answer 4

Inferior Tibiofibular joint

Question 5

What characterizes primary cartilaginous joints?

Answer 5

Hyaline cartilage present at the end of long bones

Question 6

Do primary cartilaginous joints allow movement?

Answer 6

No

Question 7

Name an example of primary cartilaginous joints

Answer 7

Epiphyseal plate

Question 8

Which type of joint has the bones separated by fibrocartilage?

Answer 8

Secondary cartilaginous joint

Question 9

Which joint type allows limited movement and does not transform into bone?

Answer 9

Secondary Cartilaginous Joint

Question 10

Name an example of secondary cartilaginous joint

Answer 10

Intervertebral discs

Question 11

Characteristics of synovial joints?

Answer 11

Capsule lined by synovial membrane, covered with fibrous capsule, Articular surface covered by Hyaline Cartilage

Question 12

What is an example of a Uni-axial joint?

Answer 12

Elbow joint, moves around a horizontal axis.

Question 13

What are pivot joints?

Answer 13

Joints that rotate in a ring, longitudinally

Question 14

What is an example of a pivot joint?

Answer 14

Superior radio-ulnar joint

Question 15

What are Ellipsoid joints’ function?

Answer 15

Flexion, extension, abduction and adduction

Question 16

Examples of Ellipsoid joints?

Answer 16

Wrist and carpometacarpal joints

Question 17

What is an example of a saddle joint?

Answer 17

First carpometacarpal joint

Question 18

Name a few functions of Poly-Axial joints

Answer 18

Medial rotation, lateral rotation, circumduction

Question 19

Name 2 examples of Poly-axial joints

Answer 19

Hips and shoulder joints

Question 20

What is Osteoarthritis?

Answer 20

A common disease affecting the big joints in females

Question 21

What cartilage type is osteoarthritis associated with?

Answer 21

Articular Cartilage

Question 22

What causes joint dislocation?

Answer 22

Direct Trauma

Question 23

What is abduction?

Answer 23

The movement of the limb away from the median plane

Question 24

Flattened muscles are attached by a sheet of fibrous tissue called?

Answer 24

Aponeurosis, the External Oblique for example

Question 25

What is the most powerful muscle fibre type?

Answer 25

Pennate

Question 26

How many axis of movement do bi-axial joints have?

Answer 26

2 axis

Question 27

Name a bi-axial joint

Answer 27

Wrist joint

Question 28

How many axis of movement do poly axial joints have?

Answer 28

Multiple axis