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Midterm Review 3A brain Quest

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Dendrites are branching extensions of
Neurons
When the release of ACh is blocked the result it
Muscular Paralysis
Hormones are the chemical messengers of the
endocrine system
Neurotransmitters are chemical messengers that travel across the
synaptic gap
The somatic nervous system is a component of the
peripheral nervous system
Motor neurons are important parts of the
peripheral nervous system
Sheelah was able to jerk her hand out of scalding water becfore sensing any pain because this withdrawal reflex
was activated by inter neurons in her spinal cord
Messages are transmitted from your spinql cord to your digestive system's stomach muscles by
the sympathetic nervous system
The brains of patients with Parkinson disease have little dopamine. Drugs used to treat such patients bind to dopamine receptors, thereby STIMULATING those receptors. These drugs would be considered
Agonists
The function of dendrites is to
receive incoming signals from other neurons
Transferring messages from a motor neuron to a leg muscle requires the neurotransmitter known as
acetylcholine
Opiate drugs that have molecular structures so similar to endorphins that they MIMIC endorphins euphoric effects in the brain.
Agonist
Schizophrenia is most closely linked with excess receptor activity for what neurotransmitter?
Dopamine
Blocks the effects of ACh in synapses, what kind of molecules does this?
antagonist
Migraine headaches are most closely linked with
Oversupply of glutamate
Refractory period
Refers to a time interval which positively charged ions are pumped back outside a neural membrane
Molecules similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and mimic that neurotransmitter's effects effects is
agonist
Alzheimers disease is most closly linked to the deterioration of neurons that produce
acetylcholine
Lack of a growth hormone can produce short stature in what gland?
Pituitary gland
An under supply of serotonin is most closely linked to
Depression
Molecules that are smililar enough to a neurotransmitter to bind to its receptor sits on a dendrite and BLOCK that neurotransmitter's effects
Antagonists
Why do psychical symptoms of fear linger even after we cognitively realize the danger has passed
The endocrine messages tend to outlast the effects of neural messages
An all or non response pattern is characteristic of
the initiation of neural impulses
the function of dendrites is to
receive incoming signals from other neurons
an Axon is
the extension of a neuron that carries messages away from the cell body
In transmitting sensory info to the brain, an electrical signal travels from
dendrites to the cell body to the axon
The depolarization of a neural membrane can create an
action potential
A synapse is
a junction between a sending neuron and a receiving neuron
The prevention of sending neurons from taking in excess neurotransmitters
Drugs often are prescribed for
Pyschactive drugs interefere with normal neural transmissions
...