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an increase in the calcium conductance of all sarcoplasmic reticulum membranes of a skeletal muscle with no external forces on it leads toa increased
during chemical synaptic transmissiona neurotransmitter travels via diffusion in extracellular spaceb there will always be release of
consider an axon of a neuron at timet1 its voltage is at threshold for an action potential at timet2 its voltage is at 0 millivolts prior to the peak
at 1 am a healthy squid giant axon is placed in a bath of normal squid physiological extracellular saline and is internally perfused with normal
which of the following occur in response to an increase in the length of the right knee extensors in response to a quick tap applied to the right
neuron a is a healthy neuron with all the usual ion channels when at rest with a membrane voltage of r millivolts neuron a produces no action
which of the following is true for a primary motor cortex m1 corticospinal interneuron that produces action potentials during movements of the big
a complete motor neuron is removed from a frog and placed in a large volume of normal physiological saline the neuron is healthy it has a stable
consider neuron b in the frog central nervous system whose plasma membrane has a previously unknown channel that is selectively conductive to a newly
which of the following serves as an effector or as part of an effector that functions in a negative feedback systema glycogen receptors in the plasma
which of the following serves as an actuating signal or as part of an actuating signal in a negative feedback systema blood plasma levels of glucoseb
how to increase in sodium conductancea complete motor neuron is removed from a frog and placed in normal physiological saline at 1 am the neuron
which of the following is true for a toe corticospinal interneuron that produces action potentials during voluntary movements of the big toe of the
which of the following is true for a toe motor neuron that excites a toe muscle that moves the big toe in the left foota all of the axon terminals of
in the axon of a nerve cella the voltage-dependent conductance of the voltage-gated potassium channel has a faster time course than the
at 100am neuron a is at rest with membrane potential equal to -70 millivolts it is producing no action potentials the threshold for an action
at 1 am a researcher places a healthy squid giant axon in a bath of normal squid physiological extracellular saline and internally perfuses the axon
patient x has blood plasma levels of parathyroid hormone pth that are always very high due to a tumor consisting of parathyroid gland cells that
which of the following is true for a g-proteina when an agonist binds to the binding site of a g-protein-coupled receptor gpcr this leads to gdp
which of the following is an effect of the following drugsa drug a is an agonist of the vasopressin2 receptor v2r high levels of drug a in the
sodium-potassium pumpa the net flux of sodium is from a region of high sodium concentration to a region of low sodium concentrationb the net flux of
which of the following is true for the sodium-glucose co-transportera the net flux of sodium ions is from a region of high sodium ion concentration
at 1 am an impermeable membrane separates a 1 liter solution of 2m kcl in the left compartment from a 1 liter solution containing both 1m nacl and 1m
at 1 am an impermeable membrane separates a 1 liter solution of 1m nacl in the left compartment from a 1 liter solution containing both 1m nacl and