IGCSE Nervous system

What term describes a change in the environment of an organism?

(a)  

Identify the structure that detects a stimulus

Identify the cell that carries a nerve impulse from the central nervous system to an effector

Identify the structure in the image

(a)  

Identify the neurone that carries a nerve impulse from a receptor towards the central nervous system

What term describes a reflex action because it occurs without thinking?

(a)  

Identify the structure in a neurone that is a long thin fibre

Identify the term for the chemical released by vesicles that crosses the synaptic gap

Identify the process by which the chemical (neurotransmitter) crosses the synaptic gap

Which of the following is a learned reflex?