Functions of the Nervous System

What are the basic functions of the nervous system?

• Digestion and absorption

• Sensory input, integration, and motor output

• Circulation and respiration

• Hormone production and regulation

What is the role of the myelin sheath in the nervous system?

• To produce neurotransmitters

• To insulate axons and speed up nerve impulses

• To store calcium ions

• To generate action potentials

How do neurons differ by structure and function?

• By their color and size

• By their location and shape

• By the number of dendrites and axons

• By their ability to conduct electricity

What is a synapse?

• A type of neurotransmitter

• A junction between two neurons

• A type of ion channel

• A part of the myelin sheath

How do cells in the nervous system communicate?

• Through sound waves

• Via electrical and chemical signals

• By absorbing nutrients

• Through light signals

What is a characteristic of the communication between cells in the nervous system?

• Slow and random

• Rapid and specific

• Gradual and vague

• Delayed and general

What is the function of sensory input in the nervous system?

• Processing and interpretation of sensory input

• Activation of effector organs

• Information gathered by sensory receptors about internal and external changes

• Producing a response

Tags

NGSS.MS-LS1-8

Which function of the nervous system involves processing and interpretation of sensory input?

• Sensory input

• Integration

• Motor output

• Effector activation

Tags

NGSS.MS-LS1-8

What does motor output in the nervous system involve?

• Gathering information by sensory receptors

• Processing sensory input

• Activation of effector organs (muscles and glands) to produce a response

• Interpretation of sensory input

Tags

NGSS.MS-LS1-8

Which part of the nervous system includes the brain and spinal cord?

• Peripheral nervous system (PNS)

• Central nervous system (CNS)

• Autonomic nervous system

• Somatic nervous system