Final answer:
The input from the brain required in spinal reflexes, the given statement is 2) false because spinal reflexes do not require input from the brain and are controlled by the spinal cord for rapid responses.
Step-by-step explanation:
Reflexes are quick, unconscious movements that are controlled by the spinal cord, allowing for rapid responses without the need for input from the brain. For example, when you touch a hot object, a reflex action causes you to immediately withdraw your hand without involving conscious thought or input from the brain.
The reflexes often occur at the spinal cord level is because information travels quickly in the nervous system, but the longer the path between areas, the longer it takes. By performing reflex actions at the spinal cord level, the distance between sensory input and motor output is minimized, allowing for fast and efficient responses. Reflexes involve local synaptic connections, with sensory neurons directly stimulating motor neurons, without requiring input from the brain.
In conclusion the given statement is 2) false , input from the brain is not required in spinal reflexes. These reflexes are controlled by the spinal cord, allowing for rapid responses without the need for conscious thought or input from the brain.