Nervous System act 2

What is the primary function of the nervous system?

• To digest food

• To collect and process information about the body’s environment

• To circulate blood

• To produce hormones

Which part of the nervous system processes information and creates a response?

• Peripheral nervous system

• Central nervous system

• Digestive system

• Endocrine system

What are neurons responsible for?

• Producing energy

• Receiving sensory input and sending motor commands

• Circulating blood

• Breaking down nutrients

What are the electrical signals carried by the nervous system called?

• Hormones

• Impulses

• Enzymes

• Waves

What are the three types of neurons based on the direction in which an impulse travels?

• Sensory, Motor, Interneurons

• Sensory, Motor, Reflex

• Motor, Reflex, Interneurons

• Reflex, Interneurons, Sensory

What is the function of the myelin sheath?

• To slow down nerve impulses

• To insulate and speed up nerve impulses

• To connect neurons to muscles

• To produce neurotransmitters

Which part of the neuron contains the nucleus?

• Axon

• Dendrite

• Cell body

• Myelin sheath

How do impulses travel along a myelinated axon?

• Continuously along the axon

• Jumping from node to node

• Slowly through the cell body

• Directly through the dendrites

What is the role of dendrites in a neuron?

• To carry impulses away from the cell body

• To receive impulses from other neurons

• To insulate the axon

• To produce myelin

Which type of axon allows action potentials to propagate more rapidly?

• Myelinated axons

• Non-myelinated axons

• Axons with small diameters

• Axons at high temperatures