EXAM 1 BRAIN STORY MODS EXAM ACTUAL EXAM 55
QUESTIONS AND CORRECT DETAILED ANSWERS
What are the 3 major divisions of the brain? - ANSWER: -forebrain
-midbrain
-hindbrain
parts of the brainstem - ANSWER: -midbrain
-pons
-medulla
2 major structures of the limbic system - ANSWER: -hippocampus
-amygdala
2 major FUNCTIONS of the limbic system - ANSWER: -hippocampus: memory
-amygdala: emotion
basal ganglia functions - ANSWER: interconnected structures for the facilitation of:
-movement
-cognition
-emotion
what main cortical region does basal ganglia influence in order to perform this
function? - ANSWER: motor cortex
what is in ventricles? - ANSWER: ceberospinal fluid (CSF)
what are the layers of meninges? - ANSWER: -dura mater: hard layer
-arachnoid mater: cobweb, suspendable
-pia mater: thin layer, that forms additional protection
what is the purpose of meninges (membranes)? - ANSWER: to protect CNS
besides ventricles, where is cerebrospinal fluid? - ANSWER: subarachnoid space
(within meninges), surrounding the brain
what part of the neuron is the INPUT ZONE and what is its function? - ANSWER:
dendrites and cell body, where neurons collect and process info, either from the
environment or from other cells
what part of the neuron is the INTEGRATION ZONE and what is its function? -
ANSWER: -cell body
-combines the info that has been received to determine whether or not to send a
signal of its own (initiates neural electrical activity)
, what part of the neuron is the CONDUCTION ZONE and what is its function? -
ANSWER: -axon
-carries the neuron's electrical signals away from the cell body
-may split into multiple branches at the end called axon collaterals
-info electrically transmitted
what part of the neuron is the OUTPUT ZONE and what is its function? - ANSWER: -
axon terminals (synaptic bouton)
-transmit the neuron's signals (info) across synapses to other cells
characteristics of a multipolar neuron - ANSWER: -many dendrites and a single axon
-most common neuron
characteristics of bipolar neurons - ANSWER: -one single dendrite at one end and a
single axon at the other end
-common in sensory systems (vision)
characteristics of unipolar neurons - ANSWER: -one single extension (usually
thought of as the axon)
-branches out in 2 directions after leaving cell body, one end has dendrite and the
other has terminals
-transmits touch info from the body to SC
presynaptic - ANSWER: referring to the "transmitting" side of a synapse
postsynaptic - ANSWER: referring to the region of a synapse that receives and
responds to a neurotransmitter
what is the main function of cranial nerves? - ANSWER: send electrical signals
between your brain and different parts of your head, face, neck and torso
what is the corpus callosum? - ANSWER: the main band of axons that connects the
2 cerebral hemispheres
what is the postcentral gyrus? - ANSWER: strip of parietal cortex (behind central
sulcus) which receives somatosensory info from the entire body
what is the forebrain and what does it contain? - ANSWER: -The frontal division of
the neural tube, contains:
-cortex
-corpus callosum
-thalamus and hypothalamus
-pineal gland
-pituitary gland
-basal ganglia
-limbic system (amygdala and hippocampus)
QUESTIONS AND CORRECT DETAILED ANSWERS
What are the 3 major divisions of the brain? - ANSWER: -forebrain
-midbrain
-hindbrain
parts of the brainstem - ANSWER: -midbrain
-pons
-medulla
2 major structures of the limbic system - ANSWER: -hippocampus
-amygdala
2 major FUNCTIONS of the limbic system - ANSWER: -hippocampus: memory
-amygdala: emotion
basal ganglia functions - ANSWER: interconnected structures for the facilitation of:
-movement
-cognition
-emotion
what main cortical region does basal ganglia influence in order to perform this
function? - ANSWER: motor cortex
what is in ventricles? - ANSWER: ceberospinal fluid (CSF)
what are the layers of meninges? - ANSWER: -dura mater: hard layer
-arachnoid mater: cobweb, suspendable
-pia mater: thin layer, that forms additional protection
what is the purpose of meninges (membranes)? - ANSWER: to protect CNS
besides ventricles, where is cerebrospinal fluid? - ANSWER: subarachnoid space
(within meninges), surrounding the brain
what part of the neuron is the INPUT ZONE and what is its function? - ANSWER:
dendrites and cell body, where neurons collect and process info, either from the
environment or from other cells
what part of the neuron is the INTEGRATION ZONE and what is its function? -
ANSWER: -cell body
-combines the info that has been received to determine whether or not to send a
signal of its own (initiates neural electrical activity)
, what part of the neuron is the CONDUCTION ZONE and what is its function? -
ANSWER: -axon
-carries the neuron's electrical signals away from the cell body
-may split into multiple branches at the end called axon collaterals
-info electrically transmitted
what part of the neuron is the OUTPUT ZONE and what is its function? - ANSWER: -
axon terminals (synaptic bouton)
-transmit the neuron's signals (info) across synapses to other cells
characteristics of a multipolar neuron - ANSWER: -many dendrites and a single axon
-most common neuron
characteristics of bipolar neurons - ANSWER: -one single dendrite at one end and a
single axon at the other end
-common in sensory systems (vision)
characteristics of unipolar neurons - ANSWER: -one single extension (usually
thought of as the axon)
-branches out in 2 directions after leaving cell body, one end has dendrite and the
other has terminals
-transmits touch info from the body to SC
presynaptic - ANSWER: referring to the "transmitting" side of a synapse
postsynaptic - ANSWER: referring to the region of a synapse that receives and
responds to a neurotransmitter
what is the main function of cranial nerves? - ANSWER: send electrical signals
between your brain and different parts of your head, face, neck and torso
what is the corpus callosum? - ANSWER: the main band of axons that connects the
2 cerebral hemispheres
what is the postcentral gyrus? - ANSWER: strip of parietal cortex (behind central
sulcus) which receives somatosensory info from the entire body
what is the forebrain and what does it contain? - ANSWER: -The frontal division of
the neural tube, contains:
-cortex
-corpus callosum
-thalamus and hypothalamus
-pineal gland
-pituitary gland
-basal ganglia
-limbic system (amygdala and hippocampus)
