Nervous System & Spinal Cord

The TWO main divisions of the nervous system are what?

• Central

• Peripheral

• Sympathetic

• Autonomic

• Somatic

The network of nerve cells & fibers which transmits nerve impulses between parts of the body is the

• brain

• spinal cord

• nervous system

Place each nervous system division within its "parent" division.

• Somatic & Autonomic Divisions

• Peripheral Nervous System

• Brain & Spinal cord

• Central Nervous System

• Sympathetic & Parasympathetic Divisions

• Autonomic Nervous System

Tags

NGSS.HS-LS1-2

Match each division of the Nervous System with its description.

• Sensory/Motor nerves throughout the body

• Sympathetic N.S.

• Control center & information highway

• Peripheral N.S.

• Regulates voluntary skeletal movement

• Central N.S.

• Activates fight, flight, or freeze

• Somatic N.S.

• Involuntary functions of organs/glands

• Autonomic N.S.

Interneurons function within the

• brain

• spinal cord

• arms & legs

• trunk (i.e. chest & stomach)

The Peripheral Nervous System is comprised of which type of neurons?

• interneurons

• sensory neurons

• motor neurons

• reflexive neurons

Reorder the following according to a simple reflex pathway.

• Stimulus

• Motor Neuron

• Sensory Neuron

• Interneuron

Place the related terms beneath each type of neuron.

Groups:

(a) Sensory Neurons

,

(b) Motor Neurons

,

(c) Interneurons

• Afferent

• carries messages away from the brain

• voluntary & involuntary muscle functions

• Efferent

• taste, touch, smell, sight, sound

• carries messages towards the brain

• between sensory & motor neurons

• brain & spinal cord

This division is the control center for body functions, decisions, & perception.

• Central N.S.

• Peripheral N.S.

• Somatic N.S.

• Autonomic N.S.

• Sympathetic N.S.

This division is made up of sensory & motor nerves which connect the CNS to the rest of the body.

• Central N.S.

• Peripheral N.S.

• Somatic N.S.

• Autonomic N.S.

• Sympathetic N.S.