Ch 8 A&P Test

The nervous system coordinates all the functions of the human body. Explain how this coordination is achieved.

• Through electrical signals and neurotransmitters

• By circulating blood throughout the body

• By digesting food and absorbing nutrients

• Through the production of hormones

What are the three divisions of the nervous system?

• a. Central Nervous System b. Peripheral Nervous System c. Autonomic Nervous System

• a. Central Nervous System b. Peripheral Nervous System c. Sympathetic Nervous System

• a. Central Nervous System b. Autonomic Nervous System c. Somatic Nervous System

• a. Peripheral Nervous System b. Autonomic Nervous System c. Enteric Nervous System

Central nervous system and peripheral system helps us make decisions and then perform the task needed. Describe the roles of these systems in decision making and task performance.

• The central nervous system processes information and the peripheral system executes tasks.

• The peripheral system processes information and the central nervous system executes tasks.

• Both systems only help in decision making, not task performance.

• Both systems only help in task performance, not decision making.

The autonomic nervous system controls the involuntary functions of the body. Which of the following is an example of these involuntary functions?

• Breathing

• Walking

• Talking

• Writing

What are the functions of the central nervous system?

• a. It communicates and coordinates systems in the body.

• b. The brain is also the seat for intellect and reasoning.

• It moves the muscles

• It controls only a few function of the body

A neuron is:

• a type of cell in the body that transmits information through electrical and chemical signals

• a type of muscle tissue

• a type of blood cell

• a type of bone cell

Nerve tissue has two major types of nerve cells, what are they and what do they do?

• Neurons and glial cells; Neurons transmit signals, glial cells support and protect neurons.

• Axons and dendrites; Axons carry impulses away, dendrites receive impulses.

• Sensory and motor neurons; Sensory neurons detect stimuli, motor neurons control muscles.

• White matter and grey matter; White matter transmits signals, grey matter processes information.

Conductivity is the ability of a material to:

• resist the flow of electric current

• allow the flow of electric current

• emit light when heated

• absorb sound waves

The three types of neurons and their functions are:

• Sensory neurons, which carry signals from the outer parts of your body (periphery) into the central nervous system.

• Motor neurons, which carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body.

• Interneurons, which connect various neurons within the brain and spinal cord.

• Body neurons, which controls the whole body

Simplify how impulses travel?

• Impulses travel through neurons via electrical signals.

• Impulses travel through neurons via chemical signals.

• Impulses travel through neurons via both electrical and chemical signals.

• Impulses travel through neurons via mechanical signals.