Muscular System

Muscular System

This challenge is for all of you who are creative if you are not creative; like me, do your best. The assignment will be graded on content only. Creativity is a must!!

Name, identify on a MODEL or DIAGRAM and give the function of the major muscles of the body discussed in this chapter. The following table lists the major muscles of the body and your assignment is to include each function.

Muscle

Function

Pectoralis major

flexes & adducts upper arm

Latissimus dorsi

extends & adducts upper arm

Deltoid

abducts upper arm

Biceps brachii

flexes elbow

Triceps brachii

extends elbow

Iliopsoas

flexes thigh or trunk

Sartorius

flexes thigh & rotates lower leg

Gluteus maximus

extends thigh

Adductors

adducts thigh, towards body

Hamstring group

Flexes lower leg

Quadriceps group

Extends lower leg

Gastrocnemius

Plantar flexes foot

Rectus abdominis

Flexes trunk

Trapezius

Extends head and neck

Sternocleidomastoid

Rotates and extends head

Orbicularis oculi

Closes eye

Zygomaticus

Elevates corners of mouth and lips

Orbicularis oris

Draws lips together

Masseter

Closes jaw

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