Anatomical Positions
What is this imaginary line that runs down the center of the body, dividing it into equal left and right halves?
Midline
Located on the front of your thigh, this muscle group consists of four individual muscles working together to extend your knee.
Quadriceps
This tough, fibrous band of connective tissue attaches skeletal muscle to bone.
Tendon
Bending your elbow to curl a dumbbell decreases the angle between your forearm and upper arm.
Flexion
Abduction and adduction are the primary movements that occur in this body plane
Frontal
What is the anatomical directional term that means toward the front or stomach side of the body?
Anterior
This large fan-shaped muscle covers your upper chest
Pectoralis Major
This term refers to a bundled group or packet of individual muscle fibers wrapped together inside a muscle.
Fascicle
Raising your arm straight out to the side during a lateral raise.
Abduction
Performing a forward lunge requires your legs to move strictly forward and backward within this body plane
Sagittal
What is the directional term describing a structure that is farther away from the midline, toward the side of the body?
Lateral
Commonly referred to as a "six-pack," this core muscle runs vertically along the front of your abdomen.
Rectus Abdominis
This band or sheet of connective tissue wraps around, encloses, and stabilizes muscles, organs, and other internal structures.
Fascia
Moving your arm in a circle at the shoulder joint
Circumduction
Jumping jacks, side leg raises, and dumbbell lateral raises all involve movement toward or away from the midline within this side-to-side plane
Frontal
What is the directional term meaning closer to the midline or middle of the body?
Medial
This muscle on the back of your lower leg helps you stand on your tiptoes.
Gastrocnemius
This thin protein filament slides past thick filaments during muscle contraction to shorten the muscle fibers.
Actin
Turning your shoulder outward to swing your forearm away from your stomach
External Rotation
Swinging a golf club, throwing a baseball, or twisting side-to-side during Russian twists
Transverse
What is the anatomical term meaning below or toward the feet relative to another body part?
Inferior
This broad, V-shaped muscle covers most of your mid and lower back.
Latissimus Dorsi
This thick protein filament features tiny "heads" that attach to actin to pull muscle fibers together.
Myosin
Standing up on your tiptoes or pointing your toes down toward the ground describes this ankle movement.
Plantar Flexion
A squat involves flexion and extension of the knees and hips, placing it in this body plane
Sagittal