Chapter 8 - Nervous System

Question 0

Consists of ganglia and the nerves that branch from the CNS

Answer 0

Peripheral nervous system PNS

Question 1

Consists of brain and spinal cord, integrates incoming info an coordinates all voluntary and involuntary nervous functions

Answer 1

Central nervous system (CNS)

Question 2

In charge during emergencies

Answer 2

Sympathetic nervous system

Question 3

Adjusts bodily functions during restful times

Answer 3

Parasympathetic nervous system

Question 4

Space between meninges

Answer 4

Cerebrospinal fluid

Question 5

Formed by tight junctions between cells in the walls of capillaries supplying the CNS, protects the CNS by selecting substances that can enter the cerebrospinal fluid from blood

Answer 5

Blood brain barrier

Question 6

Thinking, conscious part of the brain

Answer 6

Cerebrum

Question 7

Includes neurological cells, nerve cell bodies, and unmyelinated axons

Answer 7

Gray matter

Question 8

Consists mostly of myelinated cells, allows for communication between various areas of the brain and spinal cord

Answer 8

White matter

Question 9

Band of white matter that connects the two cerebral hemispheres

Answer 9

Corpus callosum

Question 10

Primary somatosensory area receives sensory info from the body

Answer 10

Sensory areas

Question 11

Serves as the relay station of the brain for all sensory info except smell

Answer 11

Thalamus

Question 12

Maintains homeostasis by regulating blood pressure, heart rate, breathing rate, digestion, and body temperature

Answer 12

Hypothalamus

Question 13

Integrates info from the motor cortex and sensory pathways to produce smooth, well-timed voluntary movements, balance

Answer 13

Cerebellum

Question 14

Contains reflex centers to regulate the rhythm of breathing, force and rate of heartbeat, and blood pressure

Answer 14

Medulla oblongata

Question 15

Processes info about sights and sounds, controls simple reflex responses to their stimuli, such as turning your head toward a loud sound

Answer 15

Midbrain

Question 16

Means “bridge”, connects the spinal cord and cerebellum with the cerebrum, thalamus, and hypothalamus

Answer 16

Pons

Question 17

Defined on the basis of function rather than anatomy, includes several brain structures that produce emotions and memory

Answer 17

Limbic system

Question 18

Holds a small amount of information for a few seconds or minutes

Answer 18

Short term memory

Question 19

Stores limitless amounts of info for hours, days, or years

Answer 19

Long term memory

Question 20

An extensive network of neurons that runs through the medulla and projects to cerebral cortex, filters sensory input and keeps the cerebral cortex in an alert state

Answer 20

Reticular activating system (RAS)