The brain test 2

Question 1

The Central Nervous System (CNS)

Peripheral nervous system:

Somatic nervous system-

Autonomic nervous system-

Answer 1

consists of the brain and spinal cord.
(Contains 90% of the body’s neurons; processes information and controls behavior, thoughts, and movements.)

Connects the CNS to the rest of the body.

Handles body movements and external environment.

Transmits information to/from internal organs and glands.

Question 2

3 layers of the human brain:

Answer 2

Central Core-
Limbic System-
Cerebral Hemispheres-

Question 3

structures in the Central Core (5)

Answer 3

medulla
pons
cerebellum
thalamus
hypothalamus

Question 4

structures in the Limbic System (2)

Answer 4

hippocampus
Amygdala

Question 5

structures in the cerebral hemispheres (4)

(Accounts for 80% of the brain’s weight and contains 70% of the neurons in the CNS.)

Answer 5

optical lobe
parietal lobe
temporal lobe
frontal lobe

Question 6

MICROelectrode Techniques

Answer 6

Used to study activity of a single neuron

Very small electrodes inserted into individual neurons

Question 7

MACROelectrode Techniques

Answer 7

Used to get a picture of overall activity in the brain

EX: EEG- which uses electrodes placed on a person’s scalp to measure brain activity

Question 8

Structural Imaging (2)

Answer 8

Computerized Axial Tomography (CT/CAT)
Uses X-rays to create a 3-dimensional image of the brain

Magnetic Resonance Imaging (MRI)
Uses a magnetic field and radio waves to produce images

Question 9

Functional Imaging

Answer 9

EEG imaging

Magnetoencephalography (MEG) & Magnetic source imaging (MSI)

Positron Emission Tomography (PET) & Single Photon Emission Computed Tomography (SPECT)

Functional Magnetic Resonance Imaging (fMRI)