Ch 9

Question 1

Arthrology

Answer 1

Study of joint structure, function, and dysfunction

Question 2

Four classifications of joints

Answer 2

bony, fibrous, cartilaginous, synovial

Question 3

Synostosis joints

Answer 3

BONY. two bones osssified together, immovable

Question 4

Synarthrodial joints

Answer 4

collagen fibers bind adjacent bones

Question 5

Three types of Fibrous joints

Answer 5

Sutures, gomphoses, syndesmoses

Question 6

gomphoses

Answer 6

e.g. tooth in socket. held by periodontal ligament

Question 7

Syndesmoses

Answer 7

long collagen fibers bind two bones. e.g. two forarm bones

Question 8

Amphiarthrosis joints

Answer 8

cartilage joints

Question 9

Synchondroses

Answer 9

cartilage joints. hyaline cartilage, epiphyseal plate, first rib/sternum(can ossify as u get old)

Question 10

Symphyses

Answer 10

cartilage joints. Fibrocartilage, pubic symphysis, intervertebral discs

Question 11

Diarthrosis joints

Answer 11

Synovial joints. most structurally complex. ur classic joint

Question 12

What is the meniscus good for? Made up of?

Answer 12

Fibrocartilage padding on tough landings. Fibrocartilage.

Question 13

Bursa

Answer 13

Sc of synovial fluid. They live in a fibrous sac. Wherever you need extra protection. fingers/shoulder/knee

Question 14

Classes of Synovial joints

Answer 14

Ball and socket, Condylar, Saddle, Plane, Hinge, Pivot

Question 15

Ball-and-socket

Answer 15

Multiple axial: shoulders/hips

Question 16

Condylar (ellipsoid)

Answer 16

Biaxial (two directions). Fingers (metacarpo-phalangeals)

Question 17

Saddle

Answer 17

Bone sitting in a saddle. Biaxial. Aposible thumbs. Concave perpendicular to convex surface.

Question 18

Plane (gliding)

Answer 18

Biaxial. back and forth/ up and down. Carpals and tarsals.

Question 19

Hinge

Answer 19

monaxial (one directions). Elbow and interphalangeal( fingers)

Question 20

Pivot

Answer 20

Monaxial. Rotating. spin radius around ula.

Question 21

Osteoarthritis (OA)

Answer 21

Wear-and-tear

Question 22

Crepitus

Answer 22

crunching and cracking sounds of joints

Question 23

Rheumatoid arthritis

Answer 23

Autoimmune disease where ur synovial membrane is attacked. They can eventually ossify (ankylosis).no movement. degenerated cartilage.

Question 24

Ankylosis

Answer 24

Bones become solidly fused. immobilization

Question 25

Arthroscopy

Answer 25

Using a small scope to look around in the joint