Disorders
Structures
Muscle Functions
Key Terms
Key Terms
100

A football player has symptoms of swelling, bruising, pain, and weakness in his right hamstring. The doctor prescribes RICE, and 800 mg Ibuprofen bid.

What is the most likely diagnosis?

Muscle Strain

100

What are the four types of muscle?

cardiac, smooth, skeletal, sphincter

100

smiling muscle

Zygomaticus major

100

contracts the muscle to cause movement

Agonist

100

Connects muscle to bone.

Tendon

200

A postal worker has inflammation that is caused by overuse of the elbow. She is experiencing dull aching pain that worsens at night. Her doctor prescribes treatment of Rest, Ice, ibuprofen, and a brace to restrict movement. What is the most likely diagnosis?

Tendonitis

200

Largest muscle in the buttocks. Helps with several hip movements, especially hip extension.

Gluteus Maximus

200

moves eyebrows up and wrinkles the forehead

Frontalis

200

circular movement of a joint

Circumduction

200

contractile unit of muscle

carsomere

300

A 7 year old boy's blood tests positive for clostridium bacteria after a getting a deep cut. He has symptoms of painful tightening of the muscles, all over his body. His doctor immediately gives him a booster shot and decides to manage further complications as needed.

Tetanus

300

The longest muscle in the human body. Runs from the hip, across the thigh to the medial knee. Crossing your legs (hip adduction) is one function.

Sartorius

300

encircles the mouth

Orbicular Oris

300

act of increasing the angle between two bones, straightening motion

Extension

300

Involuntary muscle tissue found only in the heart.

cardiac

400

A 12 year old boy has been complaining of progressive weakness and loss of muscle mass. He has been falling frequently, having difficulty rising from a sitting position, and feeling muscle pain and stiffness. His doctor decides to treat the boy's symptoms with medications and physical therapy.

What is his most likely diagnosis?

Muscular Dystrophy

400

The largest chest muscles. Assist with arm movements and motion.

Pectoralis Major

400

This is the chewing muscle of the jaw

Masseter

400

thin flexible band of connective tissue that holds, separates or binds muscles

Fascia

400

Rhythmic wavelike contraction of smooth muscle. 

Peristalsis

500

A cheerleader limps off the basketball court with involuntary contractions in her left gastrocnemius. When the athletic trainer asked her what she has had to eat and drink today she said that she did eat lunch but just drinks soda. The AT begins stretching and massaging the muscle, applies ice to ease pain and has her drink 12 ounces of Gatorade.

What is the most likely diagnosis?

Muscle Spasms

500

Anterior upper arm, flexes the elbow toward the forearm.

Biceps brachii

500

This muscle rotates the head and flexes the neck

Sternocleidomastoid

500

attachment site for skeletal muscle to bone that does not move during muscle contraction

origin

500

The point where the muscle ends.

Insertion