Ch.8 The Joints

Question 1

A __________ of the skull is an example of an immovable fibrous joint.

Answer 1

Suture

Question 2

The joint btn the 1st rib and the sternum is __________.

Answer 2

Synchondrosis

Question 3

The joint at the distal tibia and fibula is __________.

Answer 3

A gliding joint

Question 4

Intervertebral discs are composed of __________.

Answer 4

Hyaline cartilage surrounding a pad of fibrocartilage

Question 5

__________ are the most common type of joint in the human body.

Answer 5

Synovial joints

Question 6

__________ acts as a joint lubricant in synovial joints.

Answer 6

Synovial fluid.

Question 7

the pads of fibrocartilage btn the articulating surfaces of the knee are called _________.

Answer 7

Menisci

Question 8

The fluid-filled sacs sometimes associated with synovial joints are called __________.

Answer 8

Bursae

Question 9

Articular cartilage is composed of _________ .

Answer 9

Hyaline cartilage

Question 10

Fibrous Joints

Answer 10

Articulating bones fastened together by thin layer of dense conn. tissue containing many collagenous fibers.

-3 Types:
Syndesmosis
Suture
Gomphosis

Question 11

Cartilaginous Joints

Answer 11

Articulating bones connected by hyaline cartilage or fibrocartilage.

-2 Types:
Synchondrosis
Symphysis

Question 12

Synovial Joints

Answer 12

Articulating ends of bones surrounded by a joint capsule; Articular bone ends covered by hyaline cartilage and separated by synovial fluid.

-6 Types:
Ball-and-socket
Condyloid
Gliding
Hinge
Pivot
Saddle

Question 13

Synarthrotic

Answer 13

Immovable (joint)

Ex: Fibrous joints

Question 14

Amphiarthrotic

Answer 14

Slightly movable (joint)
Ex: Cartlaginous Joints

Question 15

Diarthrotic

Answer 15

Freely movable (joint)
Ex: Synovial Joints

Question 16

Syndesmosis

Amphiarthrotic

Answer 16

Fibrous joint whose bones are bound by an interosseus ligament.

P.M.: Joint flexible and may be twisted
Ex: Tibiofibular articulation

Question 17

Suture

Synarthrotic

Answer 17

Fibrous joint that articulates flat bones of the skull by a sutural ligament.

P.M.: None
Ex: Parietal bones articulate at Saginaw suture of skull

Question 18

Gomphosis

Synarthrotic

Answer 18

Fibrous joint whose cone-shaped process is fastened in a bony socket by a periodontal ligament.

P.M.: None
Ex: Root of tooth united with mandible

Question 19

Synchondrosis

Answer 19

Cartilaginous joint whose bones are united by bands of hyaline cartilage.

P.M.: None
Ex: articulation between the sternum and the first rib.

Question 20

Symphysis

Answer 20

Cartilaginous joint whose articular surfaces are separated by thin layers of hyaline cartilage attatched to a band of fibrocartilage.

P.M.: Limited mvmt, as when back is bent or twisted
Ex: Intervertebral discs of the spine

Question 21

Ball-and-socket

Answer 21

Best seen at hip and shoulder;

mvmts: flex/extend, adduct/abduct, lateral/medial rotation, and circumduction

Question 22

Condyloid

Answer 22

Best seen at the wrist and ankle (carpals);

mvmts; ROTATION EXCLUDED,

Question 23

Gliding

Answer 23

Best seen in the carpals

mvmts; sliding and twisting

Question 24

Hinge

Answer 24

best seen in the interphalange, ankle, and elbow

Mvmts; Flexion/ extention

Question 25

Pivot

Answer 25

this joint has a ring of bone around a peg
best seen in the atlas which rotates on the dens of the axis
mvmt; rotation

Question 26

Saddle

Answer 26

joint with a specialized shape
Best seen in the carpometacarpal joint at the base of the thumb.
mvmts; all BUT ROTATION