Exam 3-Articulations Flashcards Preview

Anatomy And Physiology I > Exam 3-Articulations > Flashcards

Flashcards in Exam 3-Articulations Deck (24):
1

Articulation

Point of contact between bones
Aka: Joint

2

Synarthroses

Fibrous, immovable
Ex. Coronal structure

3

Amphiarthroses

Cartilagenous, slightly movable
Ex. Cartilage in rib cage

4

Diarthroses

Synovial, freely movable.
Ex.

5

SYNARTHROSES

Syndemoses, Sutures, Gomphoses

6

Syndemoses

Ligaments tightly connect two bones (Radius, ulna in forearm)

7

Sutures

Projections interlock with each other (skull)

8

Gomphoses

Root embedded in a bony ridge (teeth in mandible)

9

AMPHIARTHROSES

Synchondroses, Symphyses

10

Synchondroses

Hyaline cartilage between articulating bones. (costal cartilage in rib cage.)

11

Symphyses

Pad of fibrocartilage between articulating bones
(pubic symphysis, vertebral disks)

12

DIARTHROSES

Uniaxial Joints, Biaxial, multiaxial

13

Uniaxial Joints

Permits movement around one axis. Hinge (back and forth, elbow and knee) Pivot. (projection of one bone articulates with a ring or notch of another, C1 or C2, atlas or axis)

14

Biaxial Joints

Permits movement around two axis. Saddle, condyloid

15

Saddle

resemble reciprocally shaped miniature saddles. only ex: carpometa carpal joint of thumb

16

Condyloid

A condyle fits into an elliptical socket
Ex: occipital condyles with the atlas, radius with the carpals

17

Multiaxial Joints

Permits movement around three axes.. ball and socket, gliding

18

Ball & socket

Shoulder, hip

19

Gliding

Relatively flat articulating surfaces that allow limited movements
Ex: between carpals, vertebrae

20

Structures of a synovial joint

Joint Capsule, Synovial Membrane, Articular Cartilage, Joint Cavity

21

Joint Capsule

Sleevelike Casing- extension of the periosteum
binds bones together

22

Synovial Membrane

lines the joint capsule, secretes synovial fluid

23

Articular Cartilage

Hyaline Cartilage
Covers the articular surface

24

Joint Cavity

Small space between articulating surfaces