Unit 2

Question 1

neuron

Answer 1

a nerve cell; basic cell of the nervous system

Question 2

sensory (afferent) neurons

Answer 2

neurons that carry information from the receptors to the spinal cord and brain

Question 3

motor (efferent) neurons

Answer 3

neurons that carry information from the brain and spinal cord to the muscles

Question 4

autonomic nervous system (ANS)

Answer 4

division of the peripheral nervous system involved in the control of (generally unconscious/automatic) bodily functioning through organs and glands; its sympathetic division arouses while the parasympathetic division calms

Question 5

sympathetic nervous system

Answer 5

subdivision of the autonomic nervous system responsible for mobilizing the body in times of stress, and preparing for flight or fight

Question 6

parasympathetic nervous system

Answer 6

subdivision of the autonomic nervous system responsible for calming the body

Question 7

brainstem

Answer 7

the oldest part and central core of the brain; responsible for automatic survival functions and composed of medulla, pons, and reticular formation.