Bio 130 Chapter 9 Quiz (Muscle Physiology)
This is a small quiz based on the chapter review emailed to the class.
- 1.What is the basic unit of a mechanical action with a skeletal muscle?
- A.
Motor unit
- B.
Twitch
- C.
Tetanus
- D.
Contraction
- 2.What is the lag time between stimulation of a muscle and the response?
- A.
Relaxation Period
- B.
Contration Period
- C.
Latent Period
- D.
Threshold Stimulas
- 3.Represented by an upward sweeping line on a myogram?
- A.
Relaxation Period
- B.
Contration Period
- C.
Latent Period
- D.
Threshold Stimulas
- 4.Muscle tention increase during which period?
- A.
Relaxation Period
- B.
Contraction Period
- C.
Latent Period
- D.
Threshold Stimulas
- 5.The downward curve back to the baseline of a myogram represent which period?
- A.
Relaxation Period
- B.
Contraction Period
- C.
Latent Period
- D.
Threshold Stimulas
- 6.Muscle fibers either fully contract or relax due to which theory?
- A.
Summation of twitches
- B.
Incomplete tetanus
- C.
All-or-None law
- D.
Complete tetanus
- 7.A muscle fiber remains unresponsive to stimulas until
- A.
Relaxtion Period
- B.
Contration Period
- C.
Latent Period
- D.
Threshold Stimulas
- 8.Wave summation is also know as?
- A.
Motor unit
- B.
Summation of Twitches
- C.
Complete Titanic Contration
- D.
Incomplete Tetanus
- 9.When a contration period is interrupted often, the myogram displays a
- A.
Staircase
- B.
Curve
- C.
Smooth line
- D.
Lightning bolt
- 10.When is a muscle stimulated so often that the contration period is interrupted?
- A.
Incomplete tetanus
- B.
Complete titanic contration
- C.
Complete tetanus
- D.
Both B and C
- 11.How is continuous stimulation at relaxtion displayed on a myogram?
- A.
Staircase
- B.
Smooth line
- C.
Curve
- D.
Lightning bolt
- 12.Continuous stimulation at relaxation interrupting frequencies results in?
- A.
Complete titanic contraction
- B.
Complete Tetanus
- C.
Threshold Stimulas
- D.
Incomplete Tetanus
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