Unit 5 Muscular System Test Review

Which type(s) of muscle produces movement voluntarily?

•    Cardiac and Skeletal

•   Skeletal and Smooth

•   Skeletal Only

•  Smooth Only

What type of muscle tissue makes up the walls of the stomach and helps move food through the digestive tract?

• Cardiac

• smooth

• skeletal

• all of the above

What is the function of the sarcoplasmic reticulum?

• It has receptors that bind to ACH

•     It has filaments the slide past each other to produce contraction

•    It stores and releases calcium which triggers myosin heads to bind to actin

•   It covers individual muscle fibers and protects them from enduring damage due to friction

All of the following statements describes Actin & Myosin except.

•  Made of proteins 

•   Make up myofilaments

• Actin has heads that bind to Myosin

•   Both are involved in the Sliding Filament Theory

The condition of muscle fatigue can best be explained by:

• Oxygen debt   

•   The absence of ATP

•  The “All-or-None” Law  

• Inadequate numbers of mitochondria

The mechanical force of contraction is generated by:

• Shortening of the thin filaments  

•    Shortening of the thick filaments

• The sliding of the thin filaments past the thick ones

• The temporary disappearance of the thin filaments

While doing “jumping jacks” during an exercise class, your arms and legs move away from the midline of your body. This muscle action is referred to as

• Abduction      

•  Adduction

• Circumduction

• Extension

Which of the following pairs of muscles best illustrates the relationship of an antagonist.

• Temporalis : Masseter      

• Biceps Brachii : Triceps Brachii

•  Gastrocnemius : Fibularis Brevis

• Pectoralis Major : Pectoralis Minor

What muscle is #6

• trapezius

• sternocleidomastoid

• pectoralis major

• deltoid

What muscle is #5

• trapezius

• sternocleidomastoid

• pectoralis major

• deltoid