Co-ordination results in_____________?
(A) Regulation of body functions
(B) Organization of body functions
(C) Integration of body functions
(D) All of these
Any change in the environment of an organism is called___________?
(A) Stimulus
(B) Variation
(C) Response
(D) Reaction
Which of the following are responsible for the detection of changes in environment?
(A) Receptors
(B) Neurons
(C) Effectors
(D) All of these
Maximum speed of nerve impulse transmission is____________?
(A) 100 m/sec
(B) 110 m/sec
(C) 120m/sec
(D) 130 m/sec.
Which of the following is present inside the vertebral column______________?
(A) Brain
(B) Spinal cord
(C) Both of these
(D) none of thes
Reflex actions below the neck are under control of____________?
(A) Brain
(B) Spinal cord
(C) Hypothalamus
(D) none of thes
Central nervous system of man consists of______________?
(A) Brain
(B) Spinal cord
(C) Both of these
(D) none of these
Which of the following ions are involved in the initiation of nerve impulse_______________?
(A) Na+
(B) K+
(C) Fe
(D) none of these
Under resting membrane potentials:
(A) Outer surface of neuron is more positive
(B) Inner surface of neuron is more positive
(C) Both of these surfaces are equally positive
(D) none of thes