Nervous System. 3 F&N

What is the function of a neurone?

• alert the body to an infection

• Carrying information

• supply blood and nutrients

• create myelin layer

Parts of the neurone

• 1)End Plate 2)Axon 3)Dendrites 4)Cell Body

• 1) Cell Body 2)Dendrites 3)End Plate 4)Axon

• 1) Cell Body 2)Dendrites 3)Axon 4)End Plate

• 1)Cell Body 2)Axon 3)Dendrites 4)End Plate

True or False: Axons conduct nerve impulses away from the cell body

• True

• False

Which of the following is NOT a characteristic of a neurone?

• They do not divide

• All the information carried by the nervous system travels along it

• They originate around the embryonic pharynx

• They have longevity

Which term describes the space between a neuron and its target cell?

• Post synaptic membrane

• Synapse

• Dendrites

• Axon terminal

An example of a reflex action includes

• Touching a butterfly

• Brushing your hand against the side of your body

• Your legs moving as you walk

• Touching a hot stove

When you suddenly shine a torch in someone´s eye, the pupil

• Contracts then stays that way for the rest of the day because the pupil needs time to readjust

• Dilates

• Contracts

• Stays the same

Reflex actions are important because

• They provide a quick, involuntary response

• They are essential to the survival of organisms

• They prevent injury

• All of the above

What is the organ tht controls your body

• Spinal cord

• Muscles

• Nerves

• Brain

The brain and the spinal cord are part of the ________ nervous system

• Central

• Peripheral