Anatomy And Physiology Advanced - Qp3
12 Questions
| Total Attempts: 42
Questions and Answers
- 1.Muscles comprise approximately 45% of total body weight, and there are in excess of ______ in the human body.
- A.
400 muscles
- B.
500 muscles
- C.
600 muscles
- D.
700 muscles
- 2.Skeletal muscles are found only in the walls of the heart and are used to force blood into the circulatory vessels.
- A.
True
- B.
False
- 3.Skeletal muscle has several important functions within the body which includes: (Select three)
- A.
Movement
- B.
Blood production
- C.
Support and posture
- D.
Heat production
- 4.The muscle belly is the thick portion of muscle tissue sited between the origin and insertion.
- A.
True
- B.
False
- 5.______ take place when a muscle increases in tension without actively shortening or lengthening.
- A.
Isotonic contractions
- B.
Isometric contractions
- C.
Isokinetic contractions
- 6.The myosin and actin filaments run adjacent to each other but at rest are not attached.
- A.
True
- B.
False
- 7.All skeletal muscle reacts to an chemical stimulus, which is conducted from the brain to the muscle via nerves.
- A.
True
- B.
False
- 8.Each fibre within a motor unit contracts according to the ______.
- A.
Golgi tendon organs
- B.
All or none law
- C.
Sliding filament theory
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