Which of the following muscles is not a prime mover for neck extension?

You are seeing a child with cerebral palsy who presents with spasticity to the hip adductors, and are attempting to ambulate with bilateral hand-held assistance (B HHA). The atypical gait pattern associated with this condition is:

Which of the following statements BEST describes the purpose of arm swing in gait?

Lie supine with your knees bent and feet flat. Put your right hand behind your head. Lift your right shoulder and scapula off the mat toward your left knee. What two trunk motions occur? (flexion, extension, right rotation, left rotation, right lateral bending, left lateral bending)What type of contraction is occurring? (isometric, concentric, or eccentric)What two specific muscles are causing these trunk motions? 

When you instruct a patient in a “chin tuck” exercise, which of the following is occuring with the neck muscles?

The least amount of intervertebral pressure and optimal resting position occurs while lying:

This action occurs when a person holds their breath and attempts to exhale.

Which muscle originates on the styloid process of the temporal bone and inserts on the hyoid bone?

What ligament runs along the vertebral bodies inside the vertebral foramen, preventing excessive flexion? 

Clenching the teeth is an isometric contration of what muscle?