1. Identify the neuron labelled A.

Here are the answers to your questions about the reflex arc: 2.2.1. Identify the neuron labelled A. The neuron labelled A is carrying impulses from the receptor towards the central nervous system (spinal cord). Sensory neuron 2.2.2. Name the type of neuron that is connected to structure B. Structure B is an effector (muscle). The neuron that transmits impulses from the central nervous system to an effector is a motor neuron. Motor neuron 2.2.3. Explain the effect on the body if the neuron mentioned in QUESTION 2.2.2. is damaged. If the motor neuron (mentioned in 2.2.2) is damaged, nerve impulses from the central nervous system will not be able to reach the effector (muscle). This will prevent the muscle from contracting, leading to a loss of movement or paralysis in the affected body part. The affected muscle will not receive nerve impulses from the central nervous system. This will result in the inability of the muscle to contract. Leading to paralysis or loss of movement in that part of the body. 2.2.4. Explain the significance of reflex actions in humans. Reflex actions are involuntary, rapid, and automatic responses to stimuli that do not involve conscious thought. Their significance lies in: Protection: They protect the body from harm by enabling quick withdrawal from dangerous stimuli (e.g., touching a hot object). Speed: They allow for immediate responses, as the nerve impulse does not need to travel to the brain for conscious interpretation before a response is initiated. Survival: They are crucial for survival by maintaining essential bodily functions and reacting to sudden threats. That's 2 down. 3 left today — send the next one.