muscular system vocab

abdominals

located in the front of the the torso, between the chest and pelvis

abduction

moving a body part away from the middle of your body like lifting you arm or leg to one side

adduction

moving a body part toward the middle of your body, like moving your legs back together after doing a jumping jack

biceps

located in the front of the upper arm

circumduction

moving a body part in a circle, like swinging your arms in a big circle

deltoids

located in the shoulder area, covering the top of the upper arm

extension

bending a joint, to make the angle smaller, like when you bend your elbow

flexion

straightening a joint, to make the angle bigger, like when you straighten your leg

gastrocnemius

located in the back of the lower leg, also known as the calf muscle

gluteals

located in the buttocks and consists of three muscles: gluteus maximus, medius, and minimus

hamstrings

located in the back of the thigh

rotation

twisting or turning a body part around, like turning your torso side to side

trapezius

located in the upper back and neck area, extending across the shoulders

triceps

located in the back of the upper arm

latissimus dorsi

located in the back, stretching from the mid-back to under the armpits

pectorals

located in the chest area