Coordination and control – the nervous system

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Question 26
Easy

Neurones are specialised cells that carry electrical impulses throughout the nervous system. The structural and functional differences between sensory and motor neurones allow them to coordinate rapid responses.

Which row in the table correctly compares mammalian motor neurones and sensory neurones?

Motor neuroneSensory neuroneACell body is located inside the CNSCell body is located in the dorsal root ganglionBHas a long, myelinated dendronHas a long, myelinated axonCCarries impulses from sensory receptors to the CNSCarries impulses from the CNS to effector organsDCell body is located midway along the pathwayCell body is located at the terminal end of the pathway \begin{array}{l|l|l} & \textbf{Motor neurone} & \textbf{Sensory neurone} \\ \hline \mathbf{A} & \text{Cell body is located inside the CNS} & \text{Cell body is located in the dorsal root ganglion} \\ \hline \mathbf{B} & \text{Has a long, myelinated dendron} & \text{Has a long, myelinated axon} \\ \hline \mathbf{C} & \text{Carries impulses from sensory receptors to the CNS} & \text{Carries impulses from the CNS to effector organs} \\ \hline \mathbf{D} & \text{Cell body is located midway along the pathway} & \text{Cell body is located at the terminal end of the pathway} \end{array} ABCD​Motor neuroneCell body is located inside the CNSHas a long, myelinated dendronCarries impulses from sensory receptors to the CNSCell body is located midway along the pathway​Sensory neuroneCell body is located in the dorsal root ganglionHas a long, myelinated axonCarries impulses from the CNS to effector organsCell body is located at the terminal end of the pathway​​

Row A\mathbf{A}A

Row B\mathbf{B}B

Row C\mathbf{C}C

Row D\mathbf{D}D

Coordination and control – the nervous system Questions

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