The contractile element of muscle are

• Sarcolemma

• Myofibrils

• Epimysium

• None

The area located in the centre of the sarcomare containing both actin and myosin is called

• I Band

• Z Band

• A Band

• S Band

The excitory chemical transmitter at neuromuscular junction are :

• Acetylcholine

• Norepinephrine

• Dopamine

• All

Protein involved in muscular contraction

• Actin

• Myosin

• Both

• None

The electrical activity developed in a muscle or nerve cell during activity or depolarisation is called

• Resting membrane potential

• Action potential

• Motor contraction

• All

Lack od sufficient Red Blood Cell or Haemoglobin is called

• Anemia

• Hydrophobia

• Pyria

• None

A neuron that conveys sensory impulse from a receptor to the central nervous system is called

• Afferent Nerve

• Efferent Nerve

• Both

• None

The immediate source of energy is

• Carbohydrate

• Fat

• Protein

• ATP

The lengthening of muscle during contraction is called

• Eccentric contraction

• Concentric contraction

• Isometric Contraction

• None

Muscle contraction and relaxation based on which theory

• Action potential theory

• Jumping filament theory

• Sliding filament theory

• dipole theory