HS I: Muscular System

Mary has muscle pain, fatigue, sleeping difficulties, depression and exercise intolerance. Her doctor has prescribed only symptomatic treatment and states that this disorder is most common in women. Mary’s diagnosis is MOST LIKELY:

• muscle spasm

• fibromyalgia

• myasthenia gravis

• muscular dystrophy

When a person flexes his bicep, what characteristic of muscles describes what is happening to his bicep?

• extensibility

• elasticity

• contractibility

• excitability

Regular exercise and training will:

• improve muscle tone

• create a build up of lactic acid

• antagonize circulation

• reduce muscle efficiency

Joe lifts weights daily. He has a bulging through a weak abdominal muscle. What is his diagnosis?

• muscular dystrophy

• myasthenia gravis

• muscle spasm

• hernia

Which body structure is made up of a smooth muscle?

• cardiac wall

• biceps brachii

• stomach wall

• trapezius

Cory stretches every night after running. What is his desired outcome?

• atrophy

• hypertrophy

• contractibility

• extensibility

Which muscle is located on the head?

• deltoid

• gluteus medius

• intercostal

• zygomaticus major

Jenna’s leg has been in a cast for four weeks due to a fracture. Her physician ordered physical therapy after the cast was removed. Why would the physician order therapy? Physical therapy will treat:

• muscle atrophy

• muscle hypertrophy

• poor posture

• Sarcoplasm

Sitting erect in your desk and walking without hunching demonstrate which muscular system function?

• Support

• posture

• movement

• body heat

Muscles are responsible for producing most of our body __________

• Heat

• Color

• Posture

• Diseases