________ There is no cure for achondroplasia

______ is an abnormal lateral curve anywhere along the spine

Fill in the blank(s) with the appropriate word(s).

A reflex arc occurs when:

A) The motor nerves function automatically without receiving a message from the CNS B) a sensory nerve sends a message to the brain but the motor nerve fails to send the appropriate response to the body C) the brain interprets sensory information that it receives from peripheral and cranial nerves and sends a signal to the muscles D) a sensory nerve detects an irritating stimulus and bypasses the brain by sending a direct message to the motor nerve