Unit 4 Quiz 1 Intro to nervous system

Two parts of the system above are labeled with "A" and "B".  Look closely at what these labels are pointing at.  Which answer best describes both parts “A” and “B” in the diagram below?  

• central nervous system only
• brain and motor nerves
• peripheral nervous system only
• central nervous system and peripheral nervous system

Which answer best describes part “A” in the diagram above?  Consider both lines in the diagram!

• peripheral nervous system
•  central nervous system
• sensory nerves
• the longest nerve cell in the body

Which statement best describes the function of the nervous system in the body?  

• to protect other organs and tissues
•  send messages to body parts using only chemicals
• to gather information through the senses (stimuli) and also control all other body systems
• to transport oxygen and carbon dioxide

 Which statement best describes the interactions between the nervous system and the bicep – which is a skeletal muscle in the arm?  

• the nervous system sends chemical messages to the bicep so that it makes new cells
• the nervous system sends electrical signals “telling” the bicep cells to contract
• the nervous system provides an attachment point for the bicep
• the nervous system supplies the oxygen to the bicep cells

Which of the following is the nervous system’s main control center?  

• the brain
• the peripheral nerve
• the neuron
• the spinal cord, which is made up of peripheral nerves

The nerve cell that carries impulses from a sense receptor to the brain or spinal cord is a _____________.

• Motor Neuron
• Sensory Neuron
• Relay Neuron

The nerve cell that transmits impulses from the brain or spinal cord to a muscle or gland.

• Motor Neuron
• Relay Neuron
• Sensory Neuron
• Schwann cell

What part of the neuron carries the impulse toward the nerve cell body?

• Dorsal Root
• Dendrites
• Myelin Sheath
• Axon

These are the supporting cells of the CNS

• neuron.
• sensory.
• motor.
• neuroglia.

The nervous system works together with the endocrine system to regulate and maintain what?

• A trusting, loving relationship
• Homeostasis
• Equality for all races
• Balanced hormone levels