Lecture Exam Three: Chapter 13 Flashcards
Which of the following are classifications of a sensory receptor by the type of stimulus?
- mechanoreceptors
- thermoreceptors
- photoreceptors
- chemoreceptors
- nociceptors
Which of the following are classifications of a sensory receptor by the stimulus location?
- exteroceptors
- interoceptors (visceroceptors)
- proprioceptors
Which of the following pairs of receptors appear to play complementary roles in hairy and hairless skin?
Meissner’s corpuscles and hair follicle receptors
Which receptor type wasn’t found until quite recently because it is made up of very small free nerve endings?
itch
At which level of the somatosensory system are conscious decisions made about low-grade touch stimuli?
perceptual level
An overwhelming odor dies down after a while is an experience of…
adaption
Convergence creates receptive fields that have […] spatial discrimination and therefore they are […] sensitive.
less; less
The sensation involves a simple system with receptors that are neuron dendrites.
pain
An intensely painful stimulus is distinguished from a mildly painful one by:
- a higher frequency of AP initiated
2. an increased number of receptors
Pain from one area of the body, such as in cardiac ischemia, can be felt in another area, such as the neck and left shoulder; this is called…
referred pain
The perinerium:
binds groups of fibers into bundles
Ganglia associated with efferent nerve fibers mostly contain cell bodies of:
autonomic motor neurons
Differences in regeneration capability between CNS and PNS neurons can mainly be attributed to the fact that:
- PNS neurons are associated with supporting cells that promote rapid cleanup and regrowth of new axons
- CNS neurons are associated with oligodendrocytes that contain growth-inhibiting proteins
Which cranial nerve is VIII?
vestibulocochlear
Which cranial nerve is V?
trigeminal
Which cranial nerve is II?
optic
Which cranial nerve is the exception and travels to the thoracic and abdominal cavities?
vagus
Head trauma during an automobile accident sometimes damages cranial n I. What sensory modality would that effect?
small (olfaction)
Damage to which cranial nerve would cause a person to lose their sense of balance?
vestibulocochlear VIII
Which cranial nerve actually originates in the spinal cord?
Accessory nerve (XI)
Which of the following cranial nerves has both sensory and motor functions?
facial (VII)
The dorsal roots along the spinal cord contain […] neurons, while the dorsal rami contain […] neurons.
sensory; mixed
The Latin term cauda equina literally means…
horse’s tail
Which spinal nerve innervates the diaphragm muscle and is primarily responsible for anatomical repiration?
phrenic nerve
Predict the outcome of damage to one cord of the left brachial plexus.
only a portion of the left limb will suffer reduced function
Which nerve plexus contains your sciatic nerve?
sacral
A neurologist can determine the approximate location of a spinal injury simple by testing areas of the skin for numbness. These skin areas are referred to as […].
dermatomes
