LABS 8,9: Synovial Joints, Actions Flashcards
Articulating bones of the:
Glenohumeral joint (Shoulder)
Scapula,
Humerus
Actions of the:
Tibiofibulotalar joint (ankle)
plantar flexion,
dorsiflexion
Radius
Name for the:
Knee
Tibiofemoral joint
Fluid-filled space between articulating bones.
Synovial Cavity
flexion
Decreases angle from “zero point” (anatomical position).
plantar flexion
“toes down” rotation at the ankle
plantar flexion: downard like planting seeds
Prime Mover
The contracting muscle of an action.
Also Agonist.
Antagonist
The muscle that relaxes and stretches while performing an action.
extension
Increases/Returns angle to“zero point” (anatomical position).
Alternate name for:
Diarthroses
Synovial Joint
Muscles included in:
hamstrings
includes:
semimembranosus
semitendinosus
biceps femoris
Muscles included in:
quadriceps femoris group
includes:
vastus lateralis
vastus intermedius
vastus medialis
Name for the:
Shoulder
Glenohumeral joint
Tibiofibulotalar Joint
i. fibula
ii. tibia
iii. talus
Bone spins on its axis.
Rotation
Lateral Rotation: away from midline
Medial Rotation: towards midline
Humerus
The contracting muscle of an action.
Primer Mover.
Agonist.
Name for the:
Ankle
Tibiofibulotalar joint
Tibiofemoral Joint
- Femur
- Tibia
dorsiflexion
“toes up” rotation at the ankle
dorsiflexion: upward like a dorsal fin
Opposing Pair
Two muscles arranged around a joint such that one contracts while the other relaxes.