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Neurobiology
Neurobiology Exam 1
90
Other
Undergraduate 2
09/25/2009

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Cards

Term
These channels are slower than the other channels in a neuron.
Definition
Potassium (Ania) channels
Term
This man believed in the reticular theory of the brain.
Definition
Camillo Golgi
Term
This was the brain theory proposed by Camillo Golgi.
Definition
Reticular theory
Term
This was Santiago Ramon y Cajal's theory of the brain.
Definition
Neuron theory
Term
This man proposed the neuron theory of the brain.
Definition
Santiango Ramon y Cajal
Term
This man searched for the brain's "engram," and then concluded that all function was delocalized.
Definition
Karl Lashley
Term
A ganglion is....
Definition
A group of cell bodies outside of the CNS.
Term
A group of cell bodies outside the CNS is called a.....
Definition
ganglion
Term
A nucleus is....
Definition
a group of cell bodies inside the CNS.
Term
A group of cell bodies inside the CNS is called a....
Definition
nucleus
Term
A nerve is....
Definition
a bundle of axons/dendrites outside the CNS.
Term
A bundle of axons/dendrites outside the CNS is a....
Definition
nerve.
Term
A tract is.....
Definition
a bundle of axons/dendrites inside the CNS.
Term
A bundle of axons/dendrites inside the CNS is called a.....
Definition
tract
Term
These nerves carry infromation to the CNS (also called sensory nerves).
Definition
afferent nerves
Term
These nerves carry information out of the CNS (also called motor nerves).
Definition
efferent nerves
Term
Afferent nerves carry information ____ the CNS.
Definition
into
Term
Efferent nerves carry information ____ the CNS.
Definition
from
Term
[image]
Definition
Posterior/caudal
Term
[image]
Definition
Dorsal
Term
[image]
Definition
Anterior/rostral/cranial
Term
[image]
Definition
Ventral
Term
[image]
Definition
Frontal plane
Term
[image]
Definition
Sagittal plane
Term
[image]
Definition
Transverse plane
Term
These are the three meningial layers protecting the brain.
Definition
Dura, arachnoid, pia.
Term
These are the three vesicles formed in the neural tube.
Definition
Prosencephalon (forebrain), mesencephalon (midbrain), and rhombencephalon (hindbrain).
Term
The prosencephalon (forebrain) later differentiates into the...
Definition
telencephalon and diencephalon
Term
The rhombencephalon (hindbrain) later differentiates into the....
Definition
metencephalon and mylencephalon
Term
In the spinal chord, the dorsal horn areas deal with _______ information while the ventral areas deal with _______ information.
Definition
Sensory, motor
Term
Each spinal segment deals with the sensory information in an area of skin called the......
Definition
dermatome
Term
The vesicles in the brain later serve as storage for.....
Definition
Cerebospinal fluid (CSF)
Term
Cerebralspinal fluid is produced in this area in the brain's vesicles.
Definition
the choroid plexus
Term
Hydrocephalus is....
Definition
a condition that results from buildup of cerebrospinal fluid in the brain.
Term
The main structures of the telencephalon are the.....
Definition

cerebral cortex

corpus callosum

hippocampus

amygdala

olfactory bulb

Term
Ridges in the cerebral cortex are called ____.
Definition
Gyri (singular: gyrus)
Term
Valleys in the cerebral cortex are called _____.
Definition
Sulci (singular: sulcus)
Term
Brodmann areas are....
Definition
numbered areas in the brain defined by changes in cerebral cortex thickness/cell-type (cytoarchitecture)
Term
[image]
Definition
Occipital lobe (vision)
Term
[image]
Definition
Parietal lobe
Term
[image]
Definition
Postcentral gyrus/primary somatosensory cortex (taste, touch)
Term
[image]
Definition
Central sulcus
Term
[image]
Definition
Primary motor cortex
Term
[image]
Definition
Frontal Lobe
Term
[image]
Definition
Olfactory bulb (smell)
Term
[image]
Definition
Temporal lobe (hearing)
Term
[image]
Definition
Broca's area (speech production)
Term
[image]
Definition
Wernicke's area (speech comprehension)
Term
The band of fibers that connects Broca's and Wernicke's areas is called the.....
Definition
arcuate fasiculus
Term
The cerebral cortex is.....
Definition
the outer covering of the brain, involved in almost all higher-order learning, memory, and reasoning skills.
Term
The corpus callosum is....
Definition
the large band of fibers connecting the two hemispheres of the brain.
Term
The hippocampus is primarily involved in....
Definition
learning and memory.
Term
The amygdala is involved in....
Definition
emotional response and emotional judgement
Term
The basal ganglia are involved in.....
Definition
motor processing
Term
[image]
Definition
Thalamus
Term
[image]
Definition
Hypothalamus
Term
[image]
Definition
Pineal gland (epithalamus)
Term
The thamamus is involved in.....
Definition
relaying signals and information to the cortex.
Term
The hypothalamus is involved in.....
Definition
homeostasis, hormone regulation, eating/drinking, and temperature regulation.
Term
The main structures in the mesencephalon are the....
Definition
tectum and tegmentum
Term
The tectum is composed of the _____ and the _____.
Definition
Superior colliculus and inferior colliculus
Term
The tectum is involved in processing.....
Definition
audio and visual information
Term
The tegmentum contains the _______, which is important in producing _______.
Definition
Substantia nigra, dopamine
Term
The metencephalon contains the ______ and _____.
Definition
pons, cerebellum
Term
The mylencephalon contains the......
Definition
medulla
Term
The pons and medulla are important in......
Definition
regulating involuntary activities (heartrate, breathing, swallowing, blinking, etc.)
Term
The cerebellum is involved in......
Definition
muscle tone and movement
Term
These neurons have no axon, only dendrites.
Definition
unipolar/anaxonal neurons
Term
This neuron has a dendrite and axon on opposite sides of the cell body (soma).
Definition
bipolar neuron
Term
This neuron has one axon and a many dendrites.
Definition
multipolar neuron
Term
This membrane channel is opened when it sense a voltage change.
Definition
voltage-gated channel
Term
This membrane channel is opened when it undergoes chemical binding.
Definition
ligand-gated channel
Term
This membrane channel is opened when it undergoes mechanical pressure.
Definition
stretch-sensitive channel
Term
This type of receptor is attached to, or is part of, an ion channel.
Definition
ionotropic receptor
Term
This type of receptor uses G-proteins or second messagers to send signals.
Definition
metabotropic receptor
Term
Symmetrical chemical synapses tend to be....
Definition
inhibitory
Term
Asymmetrical chemical synapses tend to be....
Definition
excitatory
Term
Which is more plentiful - neurons or glia?
Definition
glia
Term
Astrocytes/astroglia are involved in......
Definition
supplying nutriets, physical support, maintaining K+ concentrations, synthesizing glutamate, forming the blood-brain barrier, and maintaining osmotic balance.
Term
Microglia are involved in....
Definition
scavenging and debris removal.
Term
Oligodendrocytes/oligodendroglia are responsible for......
Definition
wrapping neuronal axons with myelin in the CNS.
Term
Schwann cells are responsible for.....
Definition
wrapping neuronal axons with myelin in the PNS.
Term
Name the two major differences between Oligodendrocytes (oligodendroglia) and Schwann cells.
Definition

Oligodendrocytes = CNS

Schwann cells = PNS

 

Oligodendrocytes = non-plastic - unable to make myelin in adulthood

Schwann cells = plastic - able to make myelin in adulthood

Term
What is the difference between white and grey matter?
Definition

White matter = myelinated

Grey matter = unmyelinated

Term
Multiple sclerosis and acrylamide poisoning lead to problems with.....
Definition
neuron myelination.
Term
How do tetrodotoxin and saxitoxin work?
Definition
They block voltage-gated Na+ channels.
Term
What are the mechanisms of scorpions' alpha and beta toxins? Poison dart frogs' batrachotoxins combine these effects.
Definition

Alpha = slows inactivation of sodium channels (leave them open longer).

Beta = lowers required charge for voltage-gated sodium channels, opening them more.

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