Anatomy Flashcards
Abduction
take extremities (arms and legs) away from the midline
Fascia
-continuous sheet located directly beneath the skin, throughout the body -firm when cool, more pliable when warm
Protraction
move toward front midline of body
Transverse Plane
twisting (Rotation)
Antagonist
muscle(s) directly opposite (on the other side of the joint) as to the agonist/primary muscle(s)
Eccentric Contraction
muscle engagement during active muscle lengthening (e.g. triceps in Chaturanga when lowering to Low Plank)
Depression
move down toward feet
Frontal Plane
side to side (Abduction, Adduction, Inversion, Eversion)
Hyperextension
extending joint beyond neutral position
Co-contraction
Agonist and antagonist are simultaneously active. Muscle co-contraction increases joint stability and facilitates joint control.
Sagittal Plane
forward and back (Flexion, Extension)
Inversion
moving sole of foot toward medial plane (e.g. back foot in Warrior I)
Plantarflexion
Move the top of the foot away from the shin (e.g. point your toes)
Adduction
take extremities (arms and legs) toward the midline
Agonist
primary muscle(s) responsible for the desired motion at a joint
Tendons
-connect muscle to bone (connects fascia of muscles to fascia of bones) -thicker version of fascia
Concentric Contraction
muscle engagement during active muscle shortening (e.g. rectus abdominus when moving up in Basic Crunch)
Elevation
lift up towards head
Kyphosis
curve towards back body - thoracic spine, sacral spine
Rotation
rotary movement in hips, shoulders, spine (external/lateral vs internal/medial rotation)
Isometric Contraction
muscle engagement under constant muscle length without movement (e.g. rectus abdominus in Boat Pose)
Axial Skeleton
skull, sternum, ribs, spine
Eversion
moving sole of foot away from medial plane
Ligaments
-connect bone to bone at a joint -thicker version of fascia -stabilize joint, control mobility -limited to no elasticity. Over-stretching or injury to ligaments compromises the stability potential of a joint.
Extension
straightens or opens a joint (e.g. backbend)
Supination
external rotation resulting in appendage facing up
Retraction
move toward back midline of body
Flexion
bends a joint or brings the bones closer together (e.g. curling your body into a ball, fetal pose, forward fold)
Appendicular Skeleton
shoulder girdle, pelvic girdle, upper and lower extremities
Lordosis
curve towards front body - cervical spine, lumbar spine
Circumduction
circular movement (e.g. drawing a circle with your arm)
Stabilizer
muscle(s) that hold a joint in place while the exercise is being performed and the main muscles are supported.
Pronation
internal rotation resulting in appendage facing down
Dorsiflexion
Move the top of the foot towards the shin (Warrior I front leg, Malasana Frog)