The refractory period A. Results in complete and incomplete tetanus B. Is the co

Question

The refractory period A. Results in complete and incomplete tetanus B. Is the condition the muscle fiber only partially relaxes between contractions C. Is the time during which the tissue cannot respond again D. Is the condition in which stimuli occur so rapidly that there are no intervening relaxations E. Is the constant tension produced by muscles for long periods of time. How would a drug that competes with acetyl choline for receptors at the motor end plate affect skeletal muscle? A. It would make the muscle more excitable B. It would produce uncontrolled muscle spasms C. It would cause spastic paralysis (muscles are contracted and unable to relax) D. It would cause flaccid paralysis (muscles are relaxed and unable to contract) E. It would have no effect on skeletal muscles During appositional growth A. Bones grow longer B. Bones grow wider C. Bone is replaced by cartilage D. The epiphysis fuses with the diaphysis E. Osteoblasts are inactive Creatine phos

Explanation / Answer

59. Answer-C

Refractory period is the time required for the excitable cell to return to the resting state and to initiate the next cycle of excitation

60.D

Acetyl choline is a excitatory neurotransmittor and it initiates action potential by binding to its receptors

61-B

Appositional growth is by adding of tissues to the existing ones to increase thickness

62-C

Creatine phosphate donates phosphate to ADP and helps in ATP regeneration

63-B

Buccinator muscle is the most important one that help in sucking movement

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