Nerves and the Nervous System

What is the primary function of the nervous system?

• Information processing and communication

• Digestion of food

• Blood circulation

• Muscle contraction

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

• Peripheral Nervous System

• Autonomic Nervous System

• Central Nervous System

• Somatic Nervous System

What is the role of the sensory portion of the peripheral nervous system?

• To control voluntary movements

• To sense the external world

• To regulate digestion

• To connect the CNS to the external environment

The sympathetic nervous system is responsible for which response?

• Rest and digest

• Fight or flight

• Sleep and relaxation

• Growth and development

What type of cell is primarily responsible for transmitting signals in the nervous system?

• Glial cells

• Epithelial cells

• Neurons

• Muscle cells

Which type of neuron carries information away from the CNS?

• Afferent neurons

• Interneurons

• Efferent neurons

• Sensory neurons

What is a reflex circuit composed of?

• One neuron

• Two neurons

• Three neurons

• Four neurons

What is the primary function of the nervous system?

• To digest food

• To carry electrical/chemical messages throughout the body

• To pump blood

• To produce hormones

Which of the following is NOT part of the nervous system?

• Brain

• Spinal cord

• Heart

• Peripheral Nervous System (PNS)

What does the Central Nervous System (CNS) include?

• Brain and spinal cord

• Heart and lungs

• Stomach and intestines

• Muscles and bones