ch. 9 joints (aka… articulations) human anatomy per. 3
TRANSCRIPT
Ch. 9JOINTS(aka…
articulations)
HUMAN ANATOMY
Per. 3
•Complete your wkst before you do Joint Aerobics!
Per. 1 start
“Synarthrosis”
“Amphiarthrosis”“Diarthrosis” (synovial joints)
e. Ellipsoid/Condyloid: wrist
f. Gliding: metatarsals & phalanges
oTENDONS: cartilage that connect skeletal muscle to boneo Pass across or around joint o Can limit range of motiono Provide support
Per. 2
• Dislocation (luxation)• Articulating bones are forced
out of position by extreme stress• Can cause damage to
cartilage, ligaments or distort the joint cavity
• Subluxation• Partial dislocation• Less severe• “double-jointed” persons
more likely to suffer subluxation
• Gliding: 2 surfaces slide past each other
• Circumduction: circular movement of a body part; a combination of flexion, extension, adduction, & abduction
• Rotation: motion that occurs when a part turns on its axis
Pg. 263-267
• Flexion/extension/ hyperextension• Flexion: bending movement that
decreases the angle between 2 parts
• Extension: straightening movement that increases the angle between body parts
• Hyperextension: movement beyond the normal position
Pg. 263-267
• Supination/pronationSupination: rotation of forearm so that the
palm faces anteriorly (up)Pronation: rotation of forearm that moves
the palm from an anterior-facing position to a posterior-facing position (down)
• Opposition: motion involving a grasping of the thumb & fingers
Pg. 263-267
Pg. 263-267
• Inversion/eversion• Inversion: movement of sole of foot towards median plane • Eversion: movement of sole of
foot away from median plane
• Retraction/protraction• Retraction: posterior
movement of arms at the shoulders• Protraction: anterior
movement of arms at the shoulders
Pg. 263-267
• Depression/elevation• Depression: movement in an
inferior direction• Elevation: movement in a
superior direction
• Dorsiflexion/plantar flexion• Dorsiflexion: extension of
entire foot superiorly• Plantar flexion: flexion of
entire foot inferiorly
• Lateral flexion: flexion from side to side
Pg. 263-267
• Abduction/adduction• Abduction: motion that pulls a structure or part away from the
midline of the body
• Adduction: motion that pulls a structure or part towards the midline of the body
Now complete the Joints Movements side
of your wkst!
Skull Decorating Contest• Each group will have one skull to decorate
• There will be 2 winners: most creative and most anatomically correct
• Winners get extra credit!
• Requirements: Sutures are identified with lines, bones need to be labeled or colored, all group members names need to be listed, and you must use at least 4 colors