Mark the correct statement

Options

A. Electrical synapses are more common in our 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

Answer

To solve the question "Mark the correct statement," we will analyze each of the provided statements one by one to determine which one is correct.

### Step-by-Step Solution:

1. **Evaluate the First Statement:**
- **Statement:** "Electrical synapses are more common in our neural system than chemical synapses."
- **Analysis:** This statement is incorrect. In the human nervous system, chemical synapses are more prevalent than electrical synapses.
- **Conclusion:** This statement is false.

2. **Evaluate the Second Statement:**
- **Statement:** "The new potential in post-synaptic neuron may be either excitatory or inhibitory."
- **Analysis:** This statement is correct. When neurotransmitters bind to receptors on the post-synaptic neuron, they can lead to either an excitatory post-synaptic potential (EPSP) or an inhibitory post-synaptic potential (IPSP).
- **Conclusion:** This statement is true.

3. **Evaluate the Third Statement:**
- **Statement:** "Hypothalamus is the major coordination center for the sensory and the motor signaling."
- **Analysis:** This statement is incorrect. The thalamus serves as the major relay and coordination center for sensory and motor signaling, not the hypothalamus.
- **Conclusion:** This statement is false.

4. **Evaluate the Fourth Statement:**
- **Statement:** "The track of nerve fibers that connect to cerebral hemispheres are called corpula by Gemina."
- **Analysis:** This statement is incorrect. The correct term for the structure that connects the two cerebral hemispheres is "corpus callosum," not "corpula by Gemina."
- **Conclusion:** This statement is false.

### Final Conclusion:
- The only correct statement among the options provided is the second statement: "The new potential in post-synaptic neuron may be either excitatory or inhibitory."