Exam 3 Flashcards
damaging the hypothalamus results in what?
dehydration, sleep loss, and loss of body temperature control
where would white matter be found?
corpus callosum, corticospinal tracts, outer portion of spinal cord
what is the term given to a shallow grove on the surface of the cortex.
sulcus
what type of neurons activate a neuron
unipolar multipolar and. bipolar bodies
what is bell’s palsy
paralysis of the face
what allows us to see familiar faces
pattern recognition
what is endorphins
neurotransmitter that inhibits pain (mimicked by heorin, morphine etc.)
what is broca’s area
motor speech area
what is a gyri
ridges on the surface of the cerebral hemisphere
what are the functions of the CSF
nourishes the brain, reduces the weight of the brain, protects from blows
what is one way sodium gated channels can open
they can open in response to electrical potential changes
what must happen for a second nerve impulse to be generated
the membrane potential must be reestablished
what happens immediately after an action potential peaks
voltage gated potassium channels will open
Nerve impulses sent to slow the heart’s rate of contraction are stimulated
parasympathetic nervous system division
the nerve impulses carrying info to the brain regarding cool surfaces on the skin are part of what division
sensory (afferent) division
An excitatory postsynaptic potential (EPSP) is described by what
short distance depolarization
what are the characteristics of a interior surface of a resting neurons plasma membrane potential
negative charge and contain less sodium than outside the cell
characteristics of graded potentials
called postsynaptic potentials Can form on receptor endings and are Short-lived
When an excitatory postsynaptic potential (EPSP) is generated on the dendritic membrane what happens
a single type of channel will open, permitting flow of sodium and potassium simultaneously
inhibitory postsynaptic potential (IPSP) is associated with what?
hyperpolarization
what are Schwann cells in the PNS similar to
oligodendrocytes in the CNS
what does the synaptic cleft use action potentials for?
to transmit a chemical signal to the post synaptic cell.
what is an interneuron
a neurons whos primary job is to connect other neurons
what does the Central nervous system contain ?
the spinal cord and brain
what are the functions of the autonomic nervous system (involuntary)
Innervation of cardiac muscle
Innervation of smooth muscle in the digestive tract
Innervation of glands
what would happen in the event or Loss of the enzyme acetylcholinestera
result in inability to destroy and remove acetylcholine from the synaptic cleft
Voltage-gated channels open in response to what
to a change in membrane potential and participate in generation and in conduction of action potentials
what are some characteristics of neurons
High metabolic rate
Conduct impulses
Extreme longevity
what is the main switch for memory
hippocampus
what would happen if the hippocampus got the left and right side destroyed
widespread amnesia
what memory would be exemplified if your heart raced upon hearing the rattle of a rattle snake
emotional
what connects the hypothalamus to the pituitary gland
infundibulum
what is the large commissure that connects the right and left side of the brain
corpus callosum
which ventricle is continuous with the central canal of the spinal cord
fourth ventricle
if there is a loss of ability to preform fine motor skills that is not caused by paralysis what caused it
damage to the premotor cortex
what is it called when you link new facts to old information
association
what cortex is involved in intellect, cognition, recall, and personality
prefrontal cortex
what is involved when you feel a general caress on your arm
lamellar corpuscles
if you fractured your ethmoid bone it would most likely involve damage to what?
olfactory cranial nerve
if you have problems with your balance it most likely means you have trauma in
the vestibulocochlear nerve
what is transduction
the conversion of stimulus energy into energy of a graded potential
what does the reflex arc include
receptor, afferent neuron, integration center, efferent neurons, effector
