Trapezius - depends on actice region and stateof other muscles; may (1) elevate, retract, depress or rotate scapula upward, (2) elevate clavicle, or (3) extend neck
There are several muscles that extend to the head. Some of these muscles include anterior scalene, aryepiglottic and the splenius capitis muscle among others.
Trapezius
Mastoid Process =)
Extensor muscles extend or straighten a body part.
Muscles can contract and shorten
Obviously this Dr is very intelligente and correct, however, if you are using the A&P Lab Manual 10th Ed (Marieb & Mitchell) the answer you are looking for is: Trapezius (found on the top of page 210)Sorry .....In my first answer I repeated myself twice and did not finish one of my answers correctly. The muscles that extend the head on the neck are;Rectus capitis major.Superior oblique.Rectus capitis minor.The muscles that extend the head on the neck are;Rectus capitis posterior major.Super oblique.Rectus capitis posterior major.
The erector spinae
i done no
triceps brachii
Hyper extend
There are four muscles that extend the leg. vastus lateralis, vastus medialis, vastus intermedius and rectus femoris.
Triceps
There are about 30 muscles in the head and kneck.
The heart and the lungs, these are known as involuntary muscles.