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Glossary of Dance Physiology Unit 1 Review

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Created by ddeetz

Function of the Skeleton
To provide architectural support to the body and give it POTENTIAL for movement.
the meeting or articulation of two bones allowing for the possibility of movement
Joint
How does the skeletal system factor into range of motion (ROM)
Each joint is limited by the following restrictions:

Bony
Ligamentous (ligaments connect bone to bone)
Muscular



Joint stability and mobility are _______ related
inversely
Planes of action
sagital plane: flexion/extension
Frontal plane: adduction/abduction
Transverse plane: inward/outward rotation

Anterior
front
posterior
back
Medial
toward the midline of the body
lateral
toward the outside of the body
proximal
close to the center of the body
Distal
away from the center of the body
the ____ and _____ structure of a joint determines what kind of movement is possible
shape and structure
Bones of the Foot
Phalanges
Metatarsals
Tarsals

Joints of the Foot
Toes = articulation of phalanges and metatarsals

Tarsus = articulation of all seven tarsal bones

Actions of the foot (toes and tarsus)
Toes = flexion (gripping)
Tarsus = pronation and supination
Bones of the lower leg:
Tibia
Fibula
Joint of the lower leg:
ankle joint = articulation of the tibia, fibula and talus
Action of the Ankle joint
flexion/extension

pointing the foot is called plantar flexion

flexing is called dorsiflexion



Bones of the upper leg
Femur
Joint of the Upper Leg
Knee Joint - articulation of the femur and tibia
Action at the knee joint would be very very free without the existence of 6 ligaments
2 collateral
2 cruciates
2 popliteal

Bones of the Pelvis
right and left Os Coxa which include:

ilium
ischium
pubis



joint of the pelvis
hip joint articulation of the head of the femur in the acetabulum or "hip socket"
Actions of the Hip Joint
flexion/extension on the sagital plane
abduction and adduction on the frontal plane
inward/outward rotation on the transversal plane

Bones of the Torso
Coccyx = 4 fused vertebrae
Sacrum = 5 fused vertebrae
Lumbar spine = 5 vertebrae
Thoracic Spine = 12 vertebrae
Cervical Spine = 7 vertebrae



Torso Joint
Articulation of individual vertebrae
Actions of the torso:
flexion/extension/hyperextension
right and left lateral flexion
right and left rotation

Some actions of the spine are restricted in certain regions:

at lumbar spine: ________
at thoracic spine: ________
at cervical spine: _________



minimal rotation
no hyperextension
no restrictions

Bones of the Shoulder Girdle:
Scapula
Clavicle
Joint of the Shoulder Girdle:
articulation of the clavicle & scapula
Actions of the Shoulder Girdle
elevation/depression
upward/downward rotation
adduction/abduction
forward tilt/return from forward tilt


Bone of the Upper Arm
Humerus
Joint of the Upper Arm
Shoulder Joint = articulation of head of humerus and glenoid fossa of the scapula
Actions of the upper arm:
adduction/abduction
extension, flexion, hyperextension
inward/outward rotation

Bones of the Forearm
Radius and Ulna
Joints of the Forearm
Elbow = articulation of the humerus with the radius and ulna

radial/ulnar joint = articulation of the radius and ulna

Action of the 1) Elbow joint and 2)Radial/Ulnar joint
1) flexion/extension

2) pronation/supination

Bones of the Hand:
Phalanges
Metacarpals
Carpals

Joint of the Hand
Wrist Joint = articulation of the 1st row of carpals with the radius and ulna
actions of the wrist joint
flexion/extension
radial deviation (towards thumb)
Ulnar deviation (towards pinky)

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