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Physiology

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The contractile element of muscle are

a)

Sarcolemma

b)

Myofibrils

c)

Epimysium

d)

None

2.

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

a)

I Band

b)

Z Band

c)

A Band

d)

S Band

3.

The excitory chemical transmitter at neuromuscular junction are :

a)

Acetylcholine

b)

Norepinephrine

c)

Dopamine

d)

All

4.

Protein involved in muscular contraction

a)

Actin

b)

Myosin

c)

Both

d)

None

5.

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

a)

Resting membrane potential

b)

Action potential

c)

Motor contraction

d)

All

6.

Lack od sufficient Red Blood Cell or Haemoglobin is called

a)

Anemia

b)

Hydrophobia

c)

Pyria

d)

None

7.

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

a)

Afferent Nerve

b)

Efferent Nerve

c)

Both

d)

None

8.

The immediate source of energy is

a)

Carbohydrate

b)

Fat

c)

Protein

d)

ATP

9.

The lengthening of muscle during contraction is called

a)

Eccentric contraction

b)

Concentric contraction

c)

Isometric Contraction

d)

None

10.

Muscle contraction and relaxation based on which theory

a)

Action potential theory

b)

Jumping filament theory

c)

Sliding filament theory

d)

dipole theory