Describe the similarities and differences in the functions of a motor and a sensory neurone. similarities differences

Mark scheme

Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.

1. [5] similarities: both carry impulses ; quickly; over long distances ; during voluntary / involuntary / reflex actions ; differences: motor – from CNS / spinal cord / brain ; to effector / named effector; sensory – from receptor / named receptor ; to CNS / spinal cord / brain ;
2. [3] reasoning / planning / problem solving / memory / emotions ; speech; hearing; movement; recognition; sight;
3. [2] homeostasis / maintenance of internal environment; controls pituitary secretions ; reference to hormones / nervous system ;