Exam 10: The Muscular System

Paralysis of which of the following would make an individual unable to flex the thigh?

A young pregnant woman went to a childbirth class and the instructor informed them about strengthening the muscles of the pelvic floor. What are these muscles?

What are the components of a lever system? Describe the role of each component.

A woman mentions to her friend that another person on the beach has "great abs." What is she talking about?

Which of the following muscles serves as a common intramuscular injection site, particularly in infants as the buttocks and arm muscles are poorly developed?

The major head flexors are the sternocleidomastoid muscles, with the help of the muscles attached to the hyoid bone.

Which of the following muscles inserts to the posterior calcaneus via the calcaneal tendon?

First-class levers__________ .

An elderly woman, with extensive osteoarthritis of her left hip joint, entered the hospital to have a total hip joint replacement (prosthesis implantation). After surgery, her left hip had to be maintained in abduction to prevent dislocation of the prosthesis while healing was occurring. An abduction pillow was used to keep the legs apart, especially when lying on her side. Name the abductor muscles and describe the action of each that need to be strengthened in order to help maintain abduction.

What is the main factor that determines the power of a muscle?

Which muscle group is involved when a "pulled groin" occurs?

A wheelbarrow is a good example of a second-class lever.

Tennis players often complain about pain in the arm (forearm) that swings the racquet. What muscle is usually strained under these conditions?

Which of the following is NOT a member of the hamstrings?

Deep muscles of the thorax promote movements for breathing.

The abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall is called a__________ .

A nurse can facilitate respiratory functioning by encouraging deep breathing exercises such as diaphragmatic breathing. Explain diaphragmatic breathing.

Which of the following muscles is a flexor of the thigh at the hip?

Regardless of type, all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.

List and describe the muscles involved in biting and chewing an apple?