Biology
Nervous Co-ordination
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#1 An action potential in a muscle fibre causes the release of calcium ions from the
A) Actin Filament
B) Myosin Filament
C) Sarcolemma
D) Sarcoplasmic reticulum
#2 White matter is composed of
A) Nerve Cells
B) Myelinated nerve fibres
C) Non - Myelinated nerve fibres
D) None of these
#3 The thermoregulatory center in the body of man is found in
A) Skin
B) Diencephalon
C) Hypothalamus
D) Pituitary gland
#4 The reflex arc is formed by the
A) Brain - spinal card muscle
B) Receptor - spinal cord muscle
C) Muscle - receptor brain
D) Muscle spinal cord-receptor
#5 There are three important components of central co-ordination system, receptors, neurons and
A) Stimulants
B) Donor
C) Effectors
D) Acceptors
#6 Reaction to stimulus is called
A) Co-ordination
B) Response
C) Affection
D) Acceptance
#7 Neurons are of three kinds, sensory, associative and
A) Structural
B) Impulsive
C) Motor
D) Respiratory
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