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Week 14
| Question | Answer |
|---|---|
| Within the nervous system, coding for the strength of a stimulus is accomplished through | The frequency of nerve impulses |
| Severe depression can be caused by a deficit in certain brain synapses of | Neuropeptides |
| What is true about spatial summation? | Neurotransmitters released simultaneously from several presynaptic knobs converge on one postsynaptic neuron. |
| What is not true about amino acid neurotransmitters? | They are all inhibitory neurotransmitters |
| Excitatory neurotransmitters are most likely to | Initiate an action potential |
| The neurotransmitter that inhibits the conduction of pain impulses is | Enkephalins |
| What is not used by the body as s neurotransmitter? | Peroixde |
| A synaptic knob would be located on an | Axon |
| Nerves tat innervate the floor of the pelvis cavity and some of the surrounding areas are found in the | Sacral plexus |
| Sympathetic responses generally have widespread effects on the body because | Preganglionic fibers synapse with several postsynaptic fibers |
| The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic | True |
| A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP? | Adenylyl cyclase will not be activated |
| Which hormone is released by the pituitary to stimulate the thyroid gland | Thyrotopin |
| Specific locations along the length of the duct encode specific frequencies, or pitches. The brain interprets the meaning of the sounds we hear as music, speech, noise, etc. Which ear structures are responsible for the amplification and transfer of soun | The ossicles |
| Where do frequencies from high to low pitches cause activity in the hair cells within the cochlear duct? | The apex of the cochlea |
| Fluid shift is when | The body's fluids move between the fluid compartments |
| Recognition of antigens by antibodies occurs when an | Antigen's epitopes fit into and bind into and into an antigen molecules antigen-binding site |
| A right shift of the oxygen hemoglobin dissociation curve due to increased partial pressure of carbon dioxide is also known as | The Bohr Effect |
| the compound formed when carbon dioxide combines with hemoglobin is | Carbaminohemoglobin |
| According to the law of partial pressures, the partial pressure of gas in a mixture of gases is | Directly related to the concentration of that gas in the mixture and to the total pressure of the mixture |
| the basic rhythm of the respiratory cycle of inspiration and expiration seems to be generated by the | Medullary rhythmicity area |
| What is not one of the openings that must be blocked when food moves from the pharynx into the esophagus | Oropharyn |
| What is not true of enzymes | They change chemically and are in the end products of the reaction |
| What is not an example of mechanical digestion? | Moistening the food |
Created by:
nstork
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