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Neuroscience Introduction
Dr. Yates Lecture 1/14/11
67
Other
Graduate
01/17/2011

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Cards

Term
What are the anatomical divisions of the nervous system?
Definition

CNS

PNS

Term
What is the functional division of the nervous system?
Definition
ANS
Term
The cerebrum, brain stem, cerebellum, and spinal cord are found in which division of the nervous system?
Definition
CNS
Term
The cranial and spinal nerves are found in which division of the nervous system?
Definition
PNS
Term
Which division of the nervous system regulates visceral motor responses?
Definition
ANS
Term
TRUE OR FALSE: The ANS contains certain parts of the CNS and PNS.
Definition
TRUE
Term
What is housed within the protective bony covering of the skull and vertebral column?
Definition
CNS
Term
The CNS is enclosed within 3 membranes. List them in order from external to internal.
Definition

Dura

Arachnoid

Pia

Term
The cerebrum can further be divided into what 2 things?
Definition

Telencephalon

Diencephalon

Term
Cerebral hemispheres and basal ganglia
Definition
Telencephalon
Term
Thalamus (including subthalamus, epithalamus, and hypothalamus)
Definition
Diencephalon
Term
Cerebral hemispheres (Telencephalon) can be divided into 4 anatomically distinct lobes. Name them.
Definition

Frontal

Parietal

Occipital

Temporal

Term
This lobe is for planning of future actions and movement control. This allows you to think before you speak. Intellectual and motor function.
Definition
Frontal
Term
This lobe is for somatic sensation and body image. It allows you to tell that you have a key in your hand without having to look.
Definition
Parietal
Term
This lobe is for vision
Definition
Occipital
Term
This lobe is for hearing, learning, memory, and emotion.
Definition
Temporal
Term
The cerebrum consists of 2 things that increase the area for neuronal cell bodies.
Definition

Gyri (Humps)

Sulci (Grooves)

Term
 A group of nuclei deep within the cerebrum. Participates in control of movement. Can have too much or not enough.
Definition
Basal ganglia (Telencephalon)
Term
Consists of the thalamus, subthalamus, epithalamus, and hypothalamus.
Definition
Diencephalon
Term
Processes information reaching cerebral cortex from rest of CNS
Definition
Thalamus
Term
Regulates autonomic, endocrine, and visceral function.
Definition
Hypothalamus
Term
3 divisions of the brain stem.
Definition

Mesencephalon (midbrain)

Metencephalon (pons)

Myelencephalon (medulla)

Term
Controls many sensory and motor functions, including eye movement and coordination of visual and auditory reflexes.
Definition
Mesencephalon (Midbrain)
Term
Conveys information about movement from the cerebrum to the cerebellum.
Definition
Metencephalon (Pons)
Term
Controls several autonomic functions such as digestion, breathing, and heart rate.
Definition
Myelencephalon (Medulla)
Term
Modulates force and range of movement.
Definition
Cerebellum
Term
Continuous with the brain stem. Upper boundary is the foramen magnum. It is the link between the CNS and PNS.
Definition
Spinal Cord
Term
Conveys sensory information from body and distributes motor impulses from CNS to body.
Definition
Spinal cord
Term
The part of the nervous system which lies outside the dura
Definition
PNS
Term
What is the PNS composed of?
Definition
Cranial Nerves (12 pair)
Spinal Nerves (31 pair)
Term
The cranial and spinal nerves of the PNS contain what 3 things?
Definition

Somatosensory fibers

Motor fibers

Autonomic neurons

Term
Receives sensory input from muscles, skin, joints, etc
Definition
Somatosensory fibers
Term
Innervates muscle
Definition
Motor fibers
Term
Innervates smooth and cardiac muscle and glands of body
Definition
autonomic neurons
Term
A cell of the nervous system
Definition
Neuron
Term
Cells are neurons. How many do we have?
Definition
~100 billion
Term
Neurons transmit what?
Definition
Information
Term
Other cell type is glia. What are glia?
Definition
Support cells that maintain the environment of the CNS
Term
Are there more glia or neurons?
Definition
Glia
Term
3 types of neurons
Definition

sensory

motor

interneurons

Term
This type of neuron receives stimuli from the environment
Definition
Sensory
Term
This type of neuron ends directly on muscles or glands
Definition
motor
Term
This type of neuron interconnect neurons
Definition
interneuron
Term
Neurons contact other neurons or other types of cells through what?
Definition
electrochemical synapses
Term
Neurons transmit information along processes known as what?
Definition
axons
Term
How to neurons transmit information along axons?
Definition
via action potentials and across synapses via chemical substances known as neurotransmitters
Term
A set of neurons and axons that work together to perform a function.
Definition
System
Term
Example of a system
Definition
Process visual information or pain sensations
Term
Usually involves multiple regions of the nervous system.
Definition
A System
Term
Carries proprioceptive information from joints and muscles to multiple levels of the neuraxis including the brain stem, thalmus, and cerebral cortex.
Definition
Dorsal Column System
Term
TRUE OR FALSE: In order to localize and diagnose neurological deficits one must have a working knowledge of both regional and systems neurobiology.
Definition
TRUE
Term
Area of nervous system containing preponderance of cell bodies and dendrites
Definition
Gray Matter
Term
Areas of nervous system containing preponderance of axons
Definition
White matter
Term
Area where gray matter forms a covering on some part of the CNS - cerebral cortex, cerebellar cortex
Definition
Cortex
Term
Groups of neurons within the CNS
Definition
Nuclei
Term
Groups of neurons outside the CNS
Definition
Ganglia
Term
Groups of axons with common origin and destination
Definition
Tract
Term
List 5 names for bundles of axons
Definition

Fasciculus

Brachium

Peduncle

Column

Lemniscus

Term
Conduction of neural impulse toward a structure
Definition
Afferent
Term
Conduction of neural impulse away from a structure
Definition
Efferent
Term
Toward the back
Definition
Dorsal
Term
Toward the abdominal surface
Definition
Ventral
Term
Toward the nose
Definition
Rostral
Term
Toward the tail (feet)
Definition
Caudal
Term

Measurable, testable, and observable phenomenon.

OBJECTIVE

Definition
Sign
Term

Experienced by the patient; not always measurable.

SUBJECTIVE

Definition
Symptom
Term
**Look over the Organizational Principle of CNS**
Definition
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