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How many statements are correct? i. De...

How many statements are correct?
i. Dendrites contains Nissi's granules
ii. Dendrites transmit impulse towards the cell body
iii. The proximal end of axon is branched
iv. Synaptic knob possess synaptic vesicles containing neurotransmitters.

A

One

B

Two

C

Three

D

All of these

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many statements are correct, let's analyze each statement one by one: **Step 1: Analyze Statement i** - Statement: "Dendrites contain Nissi's granules." - Explanation: This statement is **correct**. Nissl's granules, which are composed of rough endoplasmic reticulum and ribosomes, are indeed found in the cell body and dendrites of neurons. **Step 2: Analyze Statement ii** - Statement: "Dendrites transmit impulse towards the cell body." - Explanation: This statement is also **correct**. Dendrites are responsible for receiving signals and transmitting impulses towards the cell body of the neuron. **Step 3: Analyze Statement iii** - Statement: "The proximal end of axon is branched." - Explanation: This statement is **incorrect**. The proximal end of the axon (the part closest to the cell body) is not branched; it is the distal end (axon terminals) that branches out to form synaptic connections. **Step 4: Analyze Statement iv** - Statement: "Synaptic knob possesses synaptic vesicles containing neurotransmitters." - Explanation: This statement is **correct**. The synaptic knob (or terminal) does contain synaptic vesicles that store neurotransmitters, such as acetylcholine. **Conclusion: Count the Correct Statements** - Correct statements: i, ii, and iv (3 statements are correct). - Incorrect statement: iii. Thus, the final answer is that **3 statements are correct**. ---
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