8904769
Pregunta 1
Pregunta
Sensory neurons are generally unipolar.
Respuesta
- True
- False
Pregunta 2
Pregunta
For special senses, there is a specialised receptor cell that is very sensitive to a particular stimulus which passes an action potential on to the afferent axon.
Respuesta
- True
- False
Pregunta 3
Pregunta
Which of these is not a special sense?
Respuesta
-
Vision
-
Hearing
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Taste
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Smell
-
Vestibular (balance)
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Touch
Pregunta 4
Pregunta
Which of these are somatic & visceral senses?
Respuesta
-
Touch
-
Pain
-
Hot/Cold
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Vestibular (balance)
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Body position
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Vision
Pregunta 5
Pregunta
What is it called when a stimulus is converted into an action potential?
Respuesta
-
Translation
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Transduction
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Transferral
Pregunta 6
Pregunta
Choose the correct statement about types of sensory information coding.
Respuesta
-
Modality indicates which type or sensory receptor was activated.
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Intensity is conferred by the strength of action potentials fired.
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The duration of stimulus is conferred by the frequency of action potentials firing.
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The location is conferred by the location of the axon terminal the potential stimulates.
Pregunta 7
Pregunta
The proprioreceptors detect posture and spatial position of muscle by:
Respuesta
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detecting change of length in sarcomeres
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detecting change of length in muscle spindles
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detecting change of tension in muscle spindles
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detecting change of tension in sarcomeres
Pregunta 8
Pregunta
(choose all correct options)
The Golgi tendon organ:
Respuesta
-
detects change in tension in muscle
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provides a stretch reflex
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protects from muscle tearing
Pregunta 9
Pregunta
The muscle spindles can cause contraction of the muscle while the Golgi tendon organ can cause relaxation of the muscle.
Respuesta
- True
- False
Pregunta 10
Pregunta
Choose the incorrect statement about skin receptors.
Respuesta
-
Pacini's corpuscle are sensitive to changes in pressure and especially sensitive to vibration.
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Ruffini's corpuscle is a stretch receptor with orientation.
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Free nerve endings responsive to pain and itching.
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Merkel's endings/discs and Meissner's corpuscle are deep, non peripheral sensors.
Pregunta 11
Pregunta
Sensors primarily detect change, thus they will adapt to a stimulus and response will decay over time until a new change occurs.
Respuesta
- True
- False
Pregunta 12
Pregunta
Touch receptors are slow adapting, while stretch receptors are rapidly adapting.
Respuesta
- True
- False
Pregunta 13
Pregunta
Choose the incorrect statement about receptive fields.
Respuesta
-
A receptive field is an area which when stimulated activates an associated neuron.
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The smaller the field and denser the adjacent fields the better the discrimination of location.
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The larger the field and sparser the fields the easier it is to discriminate between two points of contact.
Pregunta 14
Pregunta
Choose the correct statements about the somatosensory areas of the cortex.
Respuesta
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The primary somatosensory cortex sits on the pre-central gyrus.
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The primary somatosensory cortex gives a conscious identification of when and where a stimulus originated.
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The somatic sensory association area is anterior to the primary somatosensory cortex.
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The somatic sensory association area is responsible for meaningful interpretation of information from the primary somatosensory cortex.
Pregunta 15
Pregunta
Size of dedicated mapped area on the primary somatosensory cortex indicates size and density of relevant receptor fields. A large area would indicate many, small, dense receptor fields.
Respuesta
- True
- False
Pregunta 16
Pregunta
Choose the incorrect statement about pain differentiation.
Respuesta
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Chronic/slow pain is transmitted by axons with a small diameter.
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Chronic/slow pain is transmitted by myelinated axons
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Acute/fast pain is generally somatic.
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Chronic/slow pain is generally visceral.
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Acute pain is transmitted by A fibers.
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Acute pain is transmitted by axons with a large diameter.
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