RT 123 – Ch 3

RT 123 – Ch 3

Joints Classifications

Classification of bones

• SHORT• LONG BONES

Classification of bones

• FLAT• IRREGULAR

• SESAMOID

JOINT CLASSIFICATION• GLIDING

• BALL & SOCKET

• HINGE

•

• SADDLE

JOINT Classifications

6 types of synovial jts• synarthrodial: immovable fibrous joints (i.e., suture of skull)• amphiarthroidial: cartilaginous jts; slightly moveable (i.e.,

symphesis)• diarthrodial: synovial jts; freely moveable • -gliding (plane): flat surfaces, i.e., vertebrae• -hinge: angular motion, i.e., elbow.• -condylar or ellipsoidal: head shaped bone that fits into a

concave surface that allows for motion, i.e., wrist.• -saddle: one bone end that is convex, which fits into a concave

bone end; allows all motion as in condylar ft; i.e., thumb.• -pivot: head of bone surround by ring of cartilage or bone to allow

rotation, i.e., C1/C2 jt.• ball and socket: head shaped bone end that fits into a cup-shaped

socket, i.e., hip.

synarthrodial

ampiarthrodial

diarthrodial

The area of the bone indicated on the figure below is the:

• A. periosteum• B. endosteum• C. compact bone• D. epiphyseal line

OSTEOLOGY

• 206 BONES

• AXIAL – SUPPORTS HEAD & TRUNK• APPENDICULAR – BOCY MOVEMENT

• CHECK OUT CHARTS P. 66

COMMON FRACTURES pg 74

COMMON FRACTURES PG 99

• Avulsion – tearing away from bone• Boxer – base 4th or 5th metacarpal• Colle’s – distal radius/ulnar – posteriorly• Smith’s distal radius/ulnar – anteriorly• Greenstick – bending of bone (children)• Pathologic – fx of a diseased or weakened

bone

A fracture that does not break through the skin is called a/an

• A. open fracture• B. closed fracture• C. displaced fracture• D. nondisplaced fracture

A serious fracture in which the bones are not in anatomic

alignment is called:

• A. impacted• B. compression• C. displaced• D. nondisplaced

When a fractured bone is shattered into many pieces, it is called:

• A. spiral• B. transverse• C. compression• D. comminuted

RT 123 – Ch 3

Documents

Transcript of RT 123 – Ch 3