In a reflex arc, impulse from receptors is carried by afferent neurons towards

Options

A. Ventral root ganglion
B. Dorsal root ganglion
C. Lateral horns
D. Lateral funiculi

Answer

To solve the question regarding the pathway of impulses in a reflex arc, we can follow these steps:

### Step 1: Understand the Reflex Arc
A reflex arc is a neural pathway that mediates a reflex action. It typically involves a sensory receptor, sensory neuron (afferent neuron), integration center (CNS), motor neuron (efferent neuron), and an effector (muscle or gland).

**Hint:** Recall the components of a reflex arc and their functions.

### Step 2: Identify the Role of Afferent Neurons
Afferent neurons are responsible for carrying sensory information from receptors (like skin, muscles, etc.) towards the central nervous system (CNS).

**Hint:** Afferent neurons are also known as sensory neurons.

### Step 3: Locate the Dorsal Root Ganglion
The dorsal root ganglion is a cluster of nerve cell bodies located in the dorsal root of the spinal nerve. It is where the sensory neurons (afferent neurons) synapse before transmitting signals to the CNS.

**Hint:** Think about where sensory information is processed before reaching the brain or spinal cord.

### Step 4: Determine the Correct Answer
Given the options:
- a) Ventral root ganglion
- b) Dorsal root ganglion
- c) Lateral horns
- d) Lateral cuniculi

The correct answer is **b) Dorsal root ganglion**, as this is where the afferent neurons carry the impulses towards the CNS.

**Hint:** Focus on the role of the dorsal root ganglion in the reflex arc.

### Final Answer
The impulse from receptors in a reflex arc is carried by afferent neurons towards the **dorsal root ganglion**.