Joints

Question 1

Fibrous joints

Answer 1

no synovial cavity and bones are held together by dense irregular connective tissue

Question 2

Cartilaginous joints

Answer 2

no synovial cavity and the bones are held together by cartilage.

Question 3

Synovial joints

Answer 3

united by the dense irregular connective tissue of an articular capsule

Question 4

Synarthrosis

Answer 4

An immovable joint

Question 5

Amphiarthrosis

Answer 5

A slightly movable joint

Question 6

Diarthrosis

Answer 6

A freely movable joint

Question 7

The three types of fibrous joints are:

Answer 7

Syndesmosis,Suture,Interosseous membranes

Question 8

Syndesmosis

Answer 8

joint permits limited movement (distal tibia and fibula) and gomphosis (dentoalveolar joint)

Question 9

Suture

Answer 9

fibrous joint that may be a slightly movable or immovable (found between skull bones)

Question 10

Interosseous membranes

Answer 10

permits slight movement
(between the radius and ulna and tibia and fibula)

Question 11

Types of cartilaginous joints:

Answer 11

Synchondrosis- connected by hyaline/fibrous cartilage (ribs)
Symphysis- connect by broad, flat disc of fibrous
cartilage (pubic symphysis)

Question 12

Bursae

Answer 12

saclike structures, similar in structure to joint capsules, that reduce friction in joints such as the shoulder and knee joints

Question 13

synovial membrane

Answer 13

secretes synovial fluid, which forms a thin, viscous film over the surfaces within the articular capsule

Question 14

Gliding

Answer 14

the nearly flat surfaces of bones move back-and-forth and side-to-side

Question 15

Angular movements

Answer 15

there is an increase or decrease in the angle
between bones (flexion–extension)

Question 16

Rotation

Answer 16

bone moves around its own longitudinal axis (rotates)

Question 17

Special movements

Answer 17

occur only at certain joints in the body.
Examples: supination-pronation

Question 18

plane (planar) joints

Answer 18

articulating surfaces are flat, and the bones glide back-and-forth and side-to-side Ex. tarsal and carpal joints

Question 19

hinge joints

Answer 19

the convex surface of one bone fits into the
concave surface of another, and the motion is angular
around one axis (uniaxial) Ex. knee

Question 20

pivot joints

Answer 20

round or pointed surface of one bone fits into a ring formed by another bone and a ligament, and movement is
rotational (uniaxial)

Question 21

condyloid joints

Answer 21

oval projection of one bone fits into an oval cavity of another, and motion is angular around two axes
(biaxial) ex. wrist joint

Question 22

saddle joints

Answer 22

the articular surface of one bone is shaped like a
saddle and the other bone fits into the “saddle” like a sitting rider; motion is angular around two axes (biaxial).

Question 23

ball-and-socket joints

Answer 23

the ball-shaped surface of
one bone fits into the cuplike depression of another;
motion is around three axes (triaxial) ex. shoulder

Question 24

knee joint

Answer 24

largest and most complex joint in the body. It contains an articular capsule, several
ligaments within and around the outside of the joint,
menisci, and bursae.