Nervous System

What are the two major divisions of the nervous system?

• Somatic and Autonomic

• Central and Peripheral

• Cerebrum and Cerebellum

• Sympathetic and Parasympathetic

Which part of the brain controls posture, balance, and coordination?

• Cerebrum

• Cerebellum

• Brain Stem

• Medulla Oblongata

What is the function of the spinal cord in the nervous system?

• Controls breathing and heart rate

• Carries signals between the brain and the body

• Regulates body responses to stimuli

• Coordinates muscle movements

Which system is associated with voluntary control of body movements?

• Somatic Nervous System

• Autonomic Nervous System

• Sympathetic Nervous System

• Parasympathetic Nervous System

What is the basic unit of the nervous system known as?

• Synapse

• Neurons

• Axons

• Dendrites

What is the function of dendrites in a nerve cell?

• Produce neurotransmitters

• Carry impulses away from the cell body

• Carry impulses towards the cell body

• Cross the space between neurons

What is the purpose of neurotransmitters in nerve impulses?

• Control muscle coordination

• Stimulate nerve impulses

• Carry impulses between neurons

• Produce electrical charges

Tree-like structures that extend away from the cell body to receive messages from other

neurons

• Dendrites

• Axon

• Myelin sheath

• Nucleus

Is a tube-like structure that propagates the integrated signal to specialized endings

• Dendrites

• Axon

• Myelin sheath

• Nucleus

Acts as an insulator to minimize dissipation of the electrical signal as it travels down the axon, greatly increasing the speed on conduction.

• Dendrites

• Axon

• Myelin sheath

• Mitochondria