Nervous System: Stile 1.1 Parts of the Nervous System

Which term matches the following definition.

Definition: consists of the brain and spinal cord. It's sometimes called the "co-ordinator" because it makes sense of the messages it receives from the sense organs and co-ordinates responses by the muscles and glands.

• Central Nervous System

• Peripheral Nervous System

• Neurons

Which term matches the following definition.

Definition: the bundles of nerves that relay messages between the sense organs, the central nervous system and the muscles and glands. This system is spread out through the entire body, as shown on the right.

• Central Nervous System

• Peripheral Nervous System

• Neurons

A in the image shows parts of the ___________________

• Central Nervous System

• Peripheral Nervous System

B in the image shows parts of the ___________________

• Central Nervous System

• Peripheral Nervous System

Which term matches the following definition.

Definition: specialized cells that transmit messages, in the form of electrical signals, to and from, and within, the central nervous system. They act something like the wires of an electric circuit.

• Central Nervous System

• Peripheral Nervous System

• Neurons

Which part of the neuron is where the nucleus is located?

• Cell body

• Dendrite

• Axon

• Myelin sheath

Which part of the neuron is the branches that receive messages?

• Cell body

• Dendrites

• Axon

• Myelin sheath

Which part of the neuron is a thread-like structure that carries impulses to other neurons?

• Cell body

• Dendrites

• Axon

• Myelin sheath

Which part of the neuron is a fatty layer that insulates the axon and sometimes a dendrite?

• Cell body

• Dendrites

• Axon

• Myelin sheath

Which type of neuron transmit messages from sensory organs to the central nervous system?

• Sensory neurons

• Interneurons

• Motor neurons