Lecture Quizzes Flashcards
Synaptic strength can vary. (true/false)
True
A single action potential in a presynaptic neuron is usually enough to get a post-synaptic cell to fire an action potential. (true/false)
False
What neurotransmitter binds to the AMPA receptor?
Glutamate
What neurotransmitter binds to the M2 receptor?
Acetylcholine (ACh)
What type of receptor is the M3 receptor?
Gq protein-coupled receptor
Which division of the nervous system is also called the thoracolumbar division?
Sympathetic nervous system
Which receptor is on adrenal medulla cells?
Nicotinic Receptors
What is the primary excitatory neurotransmitter in the spinal cord?
Glutamate
Pre-ganglionic sympathetic neurons release what neurotransmitter?
Acetylcholine (ACh)
What adrenergic receptor causes smooth muscle relaxation?
Beta 2
What adrenergic recceptor causes smooth muscle contraction?
alpha 1
What receptor on the heart causes heart rate to increase?
Beta 1 adrenergic receptor
What receptor on the heart causes heart rate to decrease?
M2 muscarinic receptor
Golf proteins are most similar to which proteins?
Gs proteins
What is the receptor for sweet on taste cells?
Gs protein-coupled receptor
What nerve innervates the taste cells on top of the tongue?
Facial nerve
Synaptotagmin is a calcium-binding protein. (true/false)
True
At the highest point of the action potential, the membrane is most permeable to which ion?
Sodium
What causes the inactivation gate of the voltage-gated sodium channel to close?
Depolarization
At resting membrane potential, the current due to sodium flux is equal to the negative of the current due to potassium flux. (true/false)
True
The excess negative charge inside cells is distributed throughout the cytoplasm. (true/false)
False
What would opening sodium channels do to the membrane potential?
Become more positive
Increasing the intracellular concentration of sodium and a non-permeable anion would cause the membrane potential to…
Become more negative
What is a collection of neuronal cell bodies in the peripheral nervous system called?
Ganglion
What is a bundle of axons in the peripheral nervous system called?
Nerve
What is a bundle of axons in the central nervous system called?
Tract
What glial cell makes myelin in the central nervous system?
Oligodendrocytes
What is the motor protein that carry cargo from the soma of a neuron to the axon terminal?
Kinesins
The alpha subunit of the Gi-protein bind to…
Adenylyl Cyclase
JAK is in the signal transduction pathway for which recpetor?
Gq protein-coupled receptors
