Quiz
nerve and muscle
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Questions in this quiz (10)
11) Characters of Local potential:
- AA) Cannot be graded.
- BB) Followed by ARP
- CC) Associated with decremental conduction.
- DD) Cannot be summated.
22) Alactic oxygen debt:
- AA) Uses greater amount of O2
- BB) Used to replenish ATP stores
- CC) Takes 1 hour or more
- DD) All of the above
33) Moderate training, long duration swimming:
- AA) Increase number of capillaries.
- BB) Increase myoglobin.
- CC) Increase number of mitochondria.
- DD) All of the above.
44) Isotonic Contraction:
- AA) Tension is constant.
- BB) Muscle length decreases.
- CC) Mechanical efficiency is Zero.
- DD) A + B.
55) Smooth muscle Contraction:
- AA) Needs Calmodulin.
- BB) Has Low ATPase activity
- CC) At first, Tension increases then decreases.
- DD) All of the above.
66) Nerve Excitability is increased by:
- AA) Hyperkalemia
- BB) Hypercalcemia
- CC) Hyponatremia
- DD) A + C.
77) During rest, Voltage gated Na channels:
- AA) m gate close, h gate close.
- BB) m gate close, h gate open
- CC) m gate open, h gate open
- DD) n gate open.
88) Skeletal muscle contraction:
- AA) Ca binds to Troponin T
- BB) Bending of Cross bridges donot need ATP.
- CC) A band shortens
- DD) Ca release from SR.
99) Smooth muscle contraction is enhanced by:
- AA) Acetyl choline
- BB) Progesterone
- CC) Norepinephrine
- DD) A + B
107) All are characteristics of single unit smooth muscle except:
- AA) Unstable RMP.
- BB) Spontaneous electric activity
- CC) Nonrhythmic
- DD) Obey all or None law
Information
- Description
- medicate and innovate ( for service the medical student) group
- Author
- Nada Medhat
- Language
- English
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