( ( ( A ( collective term ) ) ( for ( ( ( ( ( ( ( ( the brain ) , ) ( spinal cord ) ) , ) ( their nerves ) ) , ) and ) ( the ( sensory ( end organs ) ) ) ) ) ) . )
(ROOT (NP (NP (DT A) (JJ collective) (NN term)) (PP (IN for) (NP (NP (DT the) (NN brain)) (, ,) (NP (JJ spinal) (NN cord)) (, ,) (NP (PRP$ their) (NNS nerves)) (, ,) (CC and) (NP (DT the) (JJ sensory) (NN end) (NNS organs)))) (. .)))
A collective term for the brain, spinal cord, their nerves, and the sensory end organs.
(ROOT (S (NP (JJ Sensory) (NNS neurons)) (VP (VBD transmit) (NP (NN nerve) (NNS impulses)) (PP (IN from) (NP (NP (NN sense) (NNS organs)) (CC and) (NP (JJ internal) (NNS organs)))) (PP (TO to) (NP (NP (DT the) (NN brain)) (PP (IN via) (NP (DT the) (JJ spinal) (NN cord)))))) (. .)))