Brain

Question 1

Central nervous system (CNS)

Answer 1

Consists of the spinal cord and the brain
Contains neural tissue, connective tissues, and blood vessels
Functions of the CNS are to process and coordinate sensory data, motor commands, and higher functions of brain intelligence, memory, learning, and emotion

Question 2

Peripheral nervous system (PNS)

Answer 2

Includes all neural tissue outside the CNS
Functions include all signals going to and from the CNS
Delivers sensory information to the CNS
Carry motor commands to peripheral tissues and systems from the CNS

Question 3

Nerves (peripheral nerves)

Answer 3

Bundles of axons with connective tissues and blood vessels
Cranial nerves: connect to the brain
Spinal nerves: branch from the spinal cord

Question 4

Afferent (sensory) division of the PNS

Answer 4

All signals going away from the CNS
Visceral sensory: unconscious signals going towards the CNS
Somatic sensory: conscious signals going towards the CNS

Question 5

Efferent (motor) division of PNS

Answer 5

All signals going away from the CNS
Somatic motor division: conscious signals going away from CNS

Question 6

Neurons

Answer 6

The bsic functional cells of the nervous system; send and receive electrochemical signals

Question 7

Cell body (soma)

Answer 7

Nucleus location

Question 8

Dendrite

Answer 8

Many branched extensions of the neuron; receive information direct impulses to the soma and axon

Question 8

Axons

Answer 8

Single extension from the soma; send information away from the soma

Question 8

Grey matter

Answer 8

Location of the neurons cell body and dendrites
Processing occurs in the grey matter

Question 8

Cerebral cortex

Answer 8

Surface layer of grey matter
Highly folded increased surface area for processesing

Question 9

White matter

Answer 9

Location of the axons
This is where signals are sent to and from different regions of the CNS and PNS

Question 9

Cerebrum

Answer 9

Largest part of the brain, controls higher mental functions and is divided into left and right cerebral hemispheres

Question 10

Gyri

Answer 10

Elevated ridges of the brain

Question 11

Sulci (sulcus)

Answer 11

Depressions in the cerebrum

Question 12

Fissures

Answer 12

Deep groves in the brain

Question 13

Deep to cerebral cortex

Answer 13

Mostly white matter

Question 14

Basal nuclei

Answer 14

Grey matter within the white matter

Question 15

Longitudinal fissure

Answer 15

Separates cerebral hemispheres

Question 16

Corpus callosum

Answer 16

Band of white matter that connects the left and right cerebra hemispheres

Question 17

Contralateral communication

Answer 17

All sensory information detected on one side of the body will be perceived on the opposite side of the brain

Touch something with your right hand and it’s processed in the left hemi