Some examples from this set of practice questions
1.
What are the major neurotransmitters?
Answer: Acetylcholine, dopamine, GABA, glutamate, glycine, norepinephrine, serotonin
2.
What are the steps of a neurochemical transmission?
Answer: Steps of neurochemical transmission: Initiation, Conduction, Release (of a NT), Diffusion (across a synapse), Receptor binding, Effects (e.g activation), Termination.
3.
Give three characteristics of ionotropic receptors
Answer: fast, ions flow in/out, occurs in milliseconds
4.
Give three characteristics of metabotropic receptors
Answer: slow, second messenger cascade (enzymes becoming activated), occurs in seconds
5.
Name 4 types of nerve fibres
Answer: somatic afferent (sensory) fibre somatic efferent (motor) fibre visceral afferent (sensory) fibre visceral efferent (motor) fibre
6.
What are the differences between the sympathetic (SNS) and parasympathetic nervous systems (PNS)?
Answer: length of fibres: PNS: long pre-ganglion and short post ganglion, SNS: short pre-ganglion and long post ganglion fibres origin: PNS: brain stem and sacral spinal cord, SNS: thoracic and lumbar spinal cord connection to adrenal medulla: PNS: NO, SNS: YES
7.
Name three parts of the nervous system
Answer: Sympathetic Parasympathetic Enteric
8.
Give three differences between nicotinic and muscarinic receptors
Answer: location, nicotinic is ionotropic and muscarinic is metabotropic, nicotinic receptors are activated by nicotine and muscarinic receptors are activated by muscarine.
9.
What are the 7 steps of neurochemical transmission?
Answer: Initiation, Conduction, Release, Diffusion, Receptor binding, Effects, Termination.
10.
Give examples of metabotropic receptors
Answer: muscarinic, alpha and beta receptors.
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