Mark the correct statement
(a) Electrical synapses are more common in out neural system than chemical synapses
(b) The new potential in post synaptic neuron may be either excitatory or inhibitory
(c) Hypothalamus is the major coordination centre for sensory and motor signaling
(d) The tracts of nerve fibres that connect two cerebral hemispheres are called corpora bigemina

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Solution

Dear student,
Answer is b) The new potential in the post synaptic neuron can be either excitatory or inhibitory.
If reverse potential occurs in relation to threshold potential at the post synaptic neuron then the inhibitory potential is generated otherwise excitatory potential is generated.

Regards

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Similar questions

Which is more?- The sum of excitatory post synaptic potentials or the sum of inhibitory post synaptic potentials?

Q. Select the correct statement(s) with regard to brain.
A. Thalamus is the major coordinating centre for sensory and motor signaling.
B. Cerebral hemispheres are connected by corpus callosum.
C. Corpora quadrigemina are present in the midbrain.
D. The pneumotaxic centre controlling the respiration rate is located in the cerebellum.

Q. Which of the following statements is/are incorrect about the electrical synapse?
(i) At electrical synapses, the membranes of pre and post synaptic neurons are in very close proximity.
(ii) Electrical current can flow directly from one neuron into the other across the synapses.
(iii) Transmission of an impulse across electrical synapses is very similar to impulse conduction along single axon.
(iv) Electrical synapses pass electrical signal between cells with the use of Ach.
(v) Electrical synapses are fast.
(vi) Electrical synapses are rare in our system.

Q. The left and right cerebral hemispheres are connected by a tract of nerve fibres called:

Complete the statement by chossing appropriate match among the following.

$\begin{matrix} C o l u m n I & C o l u m n I I A . R e s t i n g p o t e n t i a l & 1. C h e m i c a l s i n v o l v e d i n t h e t r a n s m i s s i o n o f i m p u l s e s a t s y n a p s e s . B . S y n a p t i c c l e f t & 2. G a p b e t w e e n t h e p r e s y n a p t i c a n d p o s t s y n a p t i c n e u r o n s . C . S y n a p t i c c l e f t & 3. E l e c t r i c a l p o t e n t i a l d i f f e r e n c e a c r o s s t h e r e s t i n g n e u r a l m e m b r a n e . D . N e u r o t r a n s m i t t e r s & 4. A n e l e c t r i c a l w a v e l i k e r e s p o n s e o f a n e u r o n t o a s t i m u l a t i o n . \end{matrix}$

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Dear student, Answer is b) The new potential in the post synaptic neuron can be either excitatory or inhibitory. If reverse potential occurs in relation to threshold potential at the post synaptic neuron then the inhibitory potential is generated otherwise excitatory potential is generated. Regards