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Neuroanatomy
Neuroanatomy
89
Psychology
Undergraduate 2
01/21/2013

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Cards

Term
Neuron
Definition
Containing the cell body, axon and dendritic tree, it sends messages throughout the body.
Term
Cell body
Definition
Contains the nucleus and other cellular machinery
Term
Axon
Definition
Carries information from the rest of the cell body to the synapse; sends information from neuron to neuron.
Term
Dendritic Tree
Definition
Receives input from other cells (synapse to tree)
Term
Glia
Definition
Have many functions- they modify the environment for neurons, remove dead neurons, myelinate the axons (makes them faster), provide structural support, and helps maintain the blood brain barrier (astrocyte).
Term
White Matter
Definition
Myelination from glial cells; all that fattiness; bundles of axons sending information from one area to another.
Term
Gray Matter
Definition
Neuronal cell bodies (all the cell bodies of neurons).
Term
Central Nervous System
Definition
The brain and the spinal cord.
Term
Peripheral Nervous System
Definition
All neural tissue outside of the CNS; sensory neurons throughout the body; motor neurons.
Term
Anterior
Definition
Front
Term
Posterior
Definition
Back
Term
Superior
Definition
Top
Term
Inferior
Definition
Bottom
Term
Rostral
Definition
Toward the front/toward the head (like in a dog)
Term
Caudal
Definition
Toward the back/toward the tail
Term
Dorsal
Definition
Above/toward the back
Term
Ventral
Definition
Below/toward the stomach
Term
Medial
Definition
Toward the middle
Term
Lateral
Definition
Away from the middle
Term
Proximal
Definition
Near
Term
Distal
Definition
Far
Term
Bilateral
Definition
Both sides of the brain
Term
Unilateral
Definition
One side of the brain
Term
Ipsilateral
Definition
On the same side
Term
Contralateral
Definition
On the opposite side
Term
Coronal
Definition
Brain is separated from front to back; like ear muffs
Term
Horizontal
Definition
Brain is separated top from bottom; like a head band
Term
Sagittal
Definition
Brain is separated left from right
Term
Ventricles
Definition
Fluid filled spaces in the brain that contain cerebrospinal fluid
Term
Lateral Ventricles
Definition

The biggest ones in the middle. Separate left and right; 1st and 2nd ventricles.

[image]

Term
Third Ventricle
Definition

medial, situated at midline, between left and right thalamus.

[image]

Term
Fourth Ventricle
Definition

Diamond shaped, between pons and medulla

[image]

Term
Spinal Cord
Definition
Brings information from peripheral sensory organs to the brain and sends motor information out. Gray matter surrounded by white matter encased in bone.
Term
Medulla
Definition

Just superior of the spinal cord; where motor fibers cross from one side to the other; contains most of the cell bodies of the cranial nerves.

[image]

Term
Cerebellum
Definition

Roles in movement, balances, posture controle and some cognition. Convoluted... BROCOLLI

[image]

Term
Pons
Definition

Superior to the medulla; connects the cerebellum to the rest of the brain. Plays role in eye movements and balance. A relay center from ear to brain.

[image]

Term
Midbrain
Definition

Integration of visual and auditory information occurs here. Contains the superior and inferior colliculus.

[image]

Term
Superior Colliculus
Definition
Visual
Term
Inferior Colliculus
Definition
Auditory
Term
Thalamus
Definition

Major relay station for incoming sensory information and outgoing motor information.

[image]

[image]

Term
Hypothalamus
Definition

Helps maintain a steady state... feeding, drinking, body temperature regulation, secretes hormones and fight or flight reactions.

[image]

Term
Diencephalon
Definition
The thalamus and hypothalamus together.
Term
Subcortical System
Definition
All the structures beneath the cortex.
Term
Basal Ganglia
Definition

Contains the caudate nucleus, putamen and globus palladus. Helps control voluntary movement. Function together via exictatory and inhibitory connections.

[image]

Term
The Limbic System
Definition

Memories and emotions, contains the amygdala, the hypothalamus, the cingulate cortex, the anterior thalamus, the mammilary body and the hippocampus.

[image]

Term
Amygdala
Definition

Controls aggression and fear

[image]

Term
Hypothalamus
Definition

Maintains the body's steady state

[image]

Term
Cingulate Cortex
Definition

Error prediction and pain perception

[image]

Term
Anterior Thalamus
Definition

"Relay Station"

[image]

Term
Mammillary Body
Definition

Associated with Amnesia

[image]

Term
Hippocampus
Definition

Memory formation (long-term)

[image]

Term
Cerebral Cortex
Definition
The surface of the brain, all the bumps and grooves. Each bump is a gyrus, each groove is a sulcus. A very deep sulcus is a fissure.
Term
Longitudinal Fissure
Definition
Separates left and right hemispheres
Term
Central Sulcus
Definition

Runs from lateral to medial part of brain.

[image]

Term
Sylvian Fissure
Definition
[image]
Term
Four Lobes of the Brain (created by Fissures)
Definition

Frontal Lobe, Temporal Lobe, Occipital Lobe and Parietal Lobe

[image]

Term
Broadman's Areas
Definition
Divided brain into separate areas based off of cell and neuron density.
Term
Primary Motor Cortex
Definition

Runs earmuff style along cortex, sends information down to muscles telling them when to move and when it's appropriate to move. Different regions of this are designated to different parts of the body.

[image]

Term
Primary Sensory Cortex/Somatosensory Cortex
Definition

Sensation of touch, pain and temperature; also runs earmuff style; also divided into designated parts.

[image]

Term
Ofactory Cortex
Definition
Contains olfactory bulbs and is used for sense of smell.
Term
Gustatory Cortex
Definition
Insular cortex, used for taste
Term
Association Areas
Definition
Areas that are multimodal; combines information from varoius brain areas. Frontal, parietal and temporal lobes.
Term
Frontal Lobe
Definition
Planning, guidance and evaluation of behavior. Phineas Gage and the railroad spike.
Term
Parietal Lobe
Definition
Integration of information across sensory modalities. When damaged, hemineglect can occur.
Term
Temporal Lobe
Definition
Memory, visual item recognition, emotion and auditory processing. When damaged, deficits when recognizing common objects.
Term
Auditory and Visual Cortex
Definition
[image]
Term
The Brain Stem
Definition
[image]
Term
Corpus Callosum
Definition
[image]
Term
Lesion Studies
Definition
Studying a damaged section of the brain to determine that part's function. Ex: Somebody who can't say 'tan'
Term
Stroke
Definition

Cerebrovascular accident or CVA; a defect in circulation of the brain. Hemorrhagic- blood spilling out into brain. Ischemic- clot stops bood supply to section of brain.

FAST

Term
Single Case Studies and Group Studies
Definition
Single Case study is an in depth study of one person (HM couldn't form new memories). Finding commonalities among a group with same damage or same behavior.
Term
Localization of Function
Definition
Individual part of the brain does an individual action
Term
Mass Action
Definition
The entire brain is working together for every action.
Term
Double Dissociation
Definition
Way to determine if two cognitive functions are independent of one another. Broca and Wernickes
Term
Limitations of Lesion Method
Definition
Variability across lesions (size, exact location) and variability among patients that have lesions.
Term
Computerized Axial Tomography (CAT)
Definition
Uses Xrays, but anybody can get one.
Term

Magnetic Resonance Imaging (MRI)

Functional MRI (fMRI)

Definition

Uses a magnetic field stronger than Earth's! Not everybody can have them.

 

Detects changes in bloodflow to parts of the brain.

Term
Positron Emission Tomography (PET)
Definition
Can detect the amount of a substance being used by brain regions (glucose; neurotransmitters). Need to inject a radioactive substance.
Term
Single Cell Recording
Definition
Electron placed on/in cell and activity is recorded.
Term
Electroencephalography (EEG)
Definition
Electrodes placed on scalp to record brain activity; represent activity of neurons; sleep patterns and seizures.
Term
Event-Related Potentials (ERP)
Definition
Like EEG's, but used to record activity during specific event. N and P are negative and positive, graph is opposite, and number is milliseconds after the event.
Term
Magnetoencephalography (MEG)
Definition
Similar to ERP's, but record magnetic potentials. Locates source of epileptic activity; used to know what areas to avoid during surgery.
Term
Neuropsychology
Definition
Study of the brain-behavior relationships; measure cognition and behavior to infer brain function; understand explain and predict behavior (what are the strengths and deficit and what can we predict)
Term
General Cognitive Ability
Definition

Weschler Series of Intelligence Scales

WAIS- adults

WAISC- Children

WPPSI- infants

Term
Domains of General Cognitive Ability
Definition

 VCI- verbal comprehension index (acquired verbal knowledge)

PRI- perceptual reasoning index (problem solving)

WMI- working memory index (how long you can hold things within your memory and then use them)

PSI- processing speed index (how fast you can do these tasks)

Term
Halstead-Reitan Battery
Definition

Six different steps

1- Input perception- are they actually receving the information

2- Attention Concentration and Memory

3- Language Skills

4- Visuospatial Skills

5- Concept Formation, Reasoning and Logical Analysis

6- Output/Motor Skill

Term
Child Behavior Checklist
Definition
100 item survey given to parents in which they answer. Children fall into different domains
Term
Premorbid Functioning
Definition
Determining what level of functioning the brain was at before damage occurred. Vocabulary is used to determined this (usually)
Term
Draganski
Definition
Increase in gray matter for people who learned how to juggle. Decrease in it after they stopped.
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