Articulations

Question 1

Joints are classified according to what?

Answer 1

structure or function

Question 2

What are the three different structures of joints

Answer 2

Fibrous Connective Tissue
Cartilage
Articular Capsule with Synovial Fluid

Question 3

What are the three different functions off joints?

Answer 3

Synarthrosis
Amphiarthrosis
Diarthrosis

Question 4

What does synarthrosis mean, and what structure is this?

Answer 4

Doesn’t move

Fibrous Connective Tissue

Question 5

What does amphiarthrosis mean, and what structure is this?

Answer 5

Partially moveable

Cartilage

Question 6

What does diarthrosis mean, and what structure is this?

Answer 6

Fully moveable

Articular Capsule with Synovial Fluid

Question 7

Fibrous joints are those in which… ?

Answer 7

bones are connected by fibrous tissue with no joint cavity

Question 8

What are the three types of fibrous joints?

Answer 8

sutures
syndesmosis
gomphosis

Question 9

What is a suture?

Answer 9

dense fibrous connective tissue between skull bones

Question 10

What are syndesmosis?

Answer 10

interosseous membrane between radius and ulna

Question 11

What are gomphosis?

Answer 11

root of tooth in jaw

-peg-in-socket joint

Question 12

What are cartilaginous joints?

Answer 12

Joints connected entirely by cartilage

• more moveable than fibrous joints
• less moveable than synovial joints

Question 13

What is an epiphyseal line?

Answer 13

An epiphyseal plate that has been ossified to stop growing

Question 14

What are symphysis?

Answer 14

partially moveable joint made of fibrocartilage

Question 15

synovial joints consist of what?

Answer 15

• Articular cartilage on ends of bones

- A joint capsule consisting of tough fibrous connective tissue and a secreting synovial membrane.

Question 16

What are bursae?

Answer 16

A saclike structure containing synovial fluid

Question 17

What are bursae for?

Answer 17

protect skin, tendons, bones, from structures that could rub against them

Question 18

how are synovial joints classified?

Answer 18

according to shape and articulating surfaces

Question 19

pivot joints consist of what?

Answer 19

rounded bone surface fitting into a ring

Question 20

what is a condylar join?

Answer 20

an oval convex surface that articulates with a concave surface

Question 21

what is an example of a saddle joint?

Answer 21

thumb and trapezium

Question 22

ball and socket joints allow movement on how many axis?

Answer 22

3 axis

Question 23

what are the three types of movements?

Answer 23

angular movement
circular movement
special movement

Question 24

what are angular movements?

Answer 24

flexion and extension
abduction and adduction
circumduction

Question 25

what are circular movements?

Answer 25

rotation

pronation and supination

Question 26

what are special movements?

Answer 26

elevation and depression
protraction and retraction
excursion

Question 27

the knee joint is formed by articulation with what?

Answer 27

tibial and femoral condyles

Question 28

the articular capsule is reinforced by what?

Answer 28

capsular ligaments

Question 29

what do the tibial and fibular collateral ligaments help prevent?

Answer 29

hyperextension
abduction
adduction of the leg

Question 30

the cruciate ligaments help prevent what?

Answer 30

anterior-posterior displacement of joint surfaces

[also help knees lock when standing]