IGCSE Nerve pathways

Identify the type of neurone that transmits a nerve impulse from a receptor to the spinal cord or brain

• Sensory neurone

• Synapse

• Relay neurone

• Motor neurone

What term describes a relax as it does not involve thinking?

(a)  

Identify the term for a change in the internal or external environment of an organism

• Chemical

• Synapse

• Receptor

• Stimulus

State the term for the type of chemical released from a neurone at a synapse

(a)  

Identify the process that allows a neurotransmitter to move across the synapse

• Active transport

• Osmosis

• Diffusion

• Endocytosis

Identify the type of neurone that transmits an electrical impulse from the spinal cord to an effector

• Receptor

• Relay

• Sensory

• Motor

Which of the following is not an example of a reflex?

• Pupil changing size

• Knee jerk

• Swallowing

• Kicking a football

Which of the following is an example of an effector?

• Spinal cord

• Muscle

• Brain

• Synapse

The central nervous system consists of the spinal cord and which other organ?

(a)  

Where are the receptors that could detect chemicals in food?

• Ears

• Tongue

• Eyes

• Skin