Joints

Question 1

Point of contact between bones

Answer 1

Articulation

Question 2

Immovable joint

Answer 2

Synarthroses

Question 3

Slightly moveable joint

Answer 3

Ampiarthroses

Question 4

Freely moving joint

Answer 4

Diarthroses

Question 5

Bones of joint fit together closely, thereby allowing little or no movement

Answer 5

Fibrous joint (synarthroses)

Question 6

1. Syndesmoses
2. Sutures
3. Gomphoses

Answer 6

3 types of fibrous joints

Question 7

Joint in which ligaments connect two bones
Ex. Between radius and ulna
(Interosseous ligament)

Answer 7

Syndesmoses joint

Question 8

Joint found only in the skull; teeth like projections from adjacent bones interlock with eachother

Answer 8

Suture joint

Question 9

Joint between the root of a tooth and the alveolar process of the mandible or maxilla

Answer 9

Gomphoses joint

Question 10

Bones of joints that articulate by hyaline cartilage or fibrocartilage. Very little movement only

Answer 10

Cartilaginous joint (amphiarthroses)

Question 11

Joints in which hyaline cartilage is present between the two bones
Ex. Joint between ribs and sternum

Answer 11

Synchrondroses joint
Chondro = cartilage

Question 12

Joint joined by fibrocartilage
Ex. Symphysis pubis
*always mid-sagittal

Answer 12

Symphyses joint

Question 13

1. Hinge joint
2. Pivot joint
3. Saddle joint
4. Condyloid joint
5. Ball and socket joint
6. Gliding joint

Answer 13

6 types of synovial joints

Question 14

Sleeve like casing around the ends of the bones that binds them together
(Synovial joint)

Answer 14

Joint capsule

Question 15

Membrane that lines the joint capsule and also secretes synovial fluid
(Synovial joint)

Answer 15

Synovial membrane

Question 16

Hyaline cartilage covering the articulat surface of bones
* majority is hyaline cartilage
(Synovial joint)

Answer 16

Articulate cartilage

Question 17

Small space between the articulating surfaces of the two bones of the joint
*gets smaller with arthritis
(Synovial joint)

Answer 17

Joint cavity

Question 18

Pads of fibrocartilage located between articulating bones
(Synovial joint)

Answer 18

Menisci (articular disks)

Question 19

Strong cords of dense, white, fibrous tissue that hold bones of the synovial joint more firmly together
(Synovial joint)

Answer 19

Ligaments

Question 20

Synovial membranes filled with synovial fluid; cushion joints and facilitate movement of tendons
*sits in joint space Ex. Fossa
(Synovial joint)

Answer 20

Bursae

Question 21

Synovial joints that permit movement around only one axis and in only one plane

Answer 21

Uniaxial joints
- hinge joint
- pivot joint

Question 22

Articulating ends of bones form a hinge-shaped unity that allows only flexion and extension

Answer 22

Hinge joint

Question 23

A projection of one bone articulates with a ring or notch of another bone
Ex. Superior radio-ulnar joint
(Head of radius with radial notch on ulna)

Answer 23

Pivot joint

Question 24

Synovial joints that permit movements around two perpendicular axes in two perpendicular planes

Answer 24

Biaxial joints
- saddle joint
- condyloid joint/ellipsoidal
(Condyloid and ellipsoidal are interchangeable)

Question 25

Synovial joints in which the articulating ends of the bone resemble reciprocally shaped mini saddles
Ex. Thumb (base of 1st MC and trapezium)

Answer 25

Saddle joint

Question 26

Synovial joints in which a console articulates
* more round
* ellipsoidal = more oval

Answer 26

Condyloid/ellipsoidal joint

Question 27

Synovial joints that permit movements around three or more axes in three or more planes

Answer 27

Multi axial joint
- ball and socket
- gliding

Question 28

Most moveable joints; the ball shaped head of one bone fits into a concave depression

Answer 28

Ball and socket joint (spheroid)

Question 29

Relatively flat articulating surfaces that allow limited gliding movements along various axes
Ex. Between vertebrae
*also known as plane joints

Answer 29

Gliding joint