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Lecture exam 4 anatomy and physiology
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Lecture exam 4 anatomy and physiology Lecture exam 4 anatomy and physiology Lecture exam 4 anatomy and physiology
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Lecture exam 4 anatomy andphysiology
The most common neuron of the nervous system is the - ANS interneuron
Which of the following statements is true?The stimulation of beta-adrenergic receptors can lead to
1. an increase in metabolic activity.
2. contraction of airway smooth muscle.
3. the breakdown of triglycerides within adipocytes. - ANS 1/3
A reduction in sensitivity in the presence of a constant stimulus is referred to as - ANS adaptation
Puffer fish poison blocks voltage gated sodium channels like a cork. What effect would this
neurotoxin have on the function of neurons? - ANS The axon would be unable to generate action
potentials.
Which of the following is not a reason a reflex response may fail during a clinical exam? - ANS The
person may be elderly and no longer have any reflexes.
At a(n)_______synapse, a neurotransmitter is released to stimulate the postsynaptic membrane. -
ANS Chemical
Visual pigments are derivatives of the compound - ANS rhodopsin
The most complicated spinal reflexes are called - ANS intersegmental reflex arcs
Which of the following is not a true statement regarding the sympathetic division? - ANS The effects
are not widespread but very specific and localized.
In —————, one neuron synapses on several postsynaptic neurons - ANS divergence
You are sitting at a Mexican restaurant waiting for your food. The waiter brings a very hot plate,
telling you to be careful about touching it. You touch it anyway, producing a pain sensation in your
, fingers, a withdrawal of your hand, and an auditory comment of what you are thinking. This scenario
represents a ________ neuronal circuit. - ANS parallel processing
The dural sinuses form between which two layers of the cranial dura mater? - ANS periosteal and
meningeal layers
Most long-term memories are stored in the - ANS cerebral cortex
The_____are the four masses on the posterior of the midbrain. - ANS corpora quadrigemina
Jane, a 79-year-old woman, has been diagnosed with a tumor in the brain. She has lost some sensory
and motor functions associated with the face, like control of facial muscles for emotion and various
sensory functions like taste. In addition, she has some hearing loss and balance problems. The
location of the tumor is likely to be the - ANS pons
Mary accidentally ate poisonous mushrooms that contain muscarine. You would expect to observe
all of the following symptoms except - ANS very fast heart rate
The spinal cord is part of the_____ nervous system - ANS Central
Synaptic delay is caused by - ANS calcium influx and neurotransmitter release.
Suppose that you feel something brushing against your abdomen. The sensory information would be
carried to the spinal cord over a(an)______
ramus. - ANS anterior
The term used to describe the crossing over of a tract to the side of the nervous system opposite to
where the axons originated is - ANS decussation
Upper motor neurons of the corticospinal tract synapse with neurons in - ANS anterior gray horns of
the spinal cord
Thalamic neurons that project to the primary sensory cortex are ________ neurons. - ANS Third in
order
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