Quiz
L28 Sensory Receptors and the Somatosensory Cortex
Questions in this quiz (16)
1Sensory neurons are generally unipolar.
- ATrue
- BFalse
2For 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.
- ATrue
- BFalse
3Which of these is not a special sense?
- AVision
- BHearing
- CTaste
- DSmell
- EVestibular (balance)
- FTouch
4Which of these are somatic & visceral senses?
- ATouch
- BPain
- CHot/Cold
- DVestibular (balance)
- EBody position
- FVision
5What is it called when a stimulus is converted into an action potential?
- ATranslation
- BTransduction
- CTransferral
6Choose the correct statement about types of sensory information coding.
- AModality indicates which type or sensory receptor was activated.
- BIntensity is conferred by the strength of action potentials fired.
- CThe duration of stimulus is conferred by the frequency of action potentials firing.
- DThe location is conferred by the location of the axon terminal the potential stimulates.
7The proprioreceptors detect posture and spatial position of muscle by:
- Adetecting change of length in sarcomeres
- Bdetecting change of length in muscle spindles
- Cdetecting change of tension in muscle spindles
- Ddetecting change of tension in sarcomeres
8(choose all correct options)
The Golgi tendon organ:- Adetects change in tension in muscle
- Bprovides a stretch reflex
- Cprotects from muscle tearing
9The muscle spindles can cause contraction of the muscle while the Golgi tendon organ can cause relaxation of the muscle.
- ATrue
- BFalse
10Choose the incorrect statement about skin receptors.
- APacini's corpuscle are sensitive to changes in pressure and especially sensitive to vibration.
- BRuffini's corpuscle is a stretch receptor with orientation.
- CFree nerve endings responsive to pain and itching.
- DMerkel's endings/discs and Meissner's corpuscle are deep, non peripheral sensors.
11Sensors primarily detect change, thus they will adapt to a stimulus and response will decay over time until a new change occurs.
- ATrue
- BFalse
12Touch receptors are slow adapting, while stretch receptors are rapidly adapting.
- ATrue
- BFalse
13Choose the incorrect statement about receptive fields.
- AA receptive field is an area which when stimulated activates an associated neuron.
- BThe smaller the field and denser the adjacent fields the better the discrimination of location.
- CThe larger the field and sparser the fields the easier it is to discriminate between two points of contact.
14Choose the correct statements about the somatosensory areas of the cortex.
- AThe primary somatosensory cortex sits on the pre-central gyrus.
- BThe primary somatosensory cortex gives a conscious identification of when and where a stimulus originated.
- CThe somatic sensory association area is anterior to the primary somatosensory cortex.
- DThe somatic sensory association area is responsible for meaningful interpretation of information from the primary somatosensory cortex.
15Size 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.
- ATrue
- BFalse
16Choose the incorrect statement about pain differentiation.
- AChronic/slow pain is transmitted by axons with a small diameter.
- BChronic/slow pain is transmitted by myelinated axons
- CAcute/fast pain is generally somatic.
- DChronic/slow pain is generally visceral.
- EAcute pain is transmitted by A fibers.
- FAcute pain is transmitted by axons with a large diameter.
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- Description
- HUBS191 (Human Movement and Sensation (L16 - 31)) Quiz on L28 Sensory Receptors and the Somatosensory Cortex, created by Mer Scott on 12/05/2017.
- Author
- Mer Scott
- Language
- English
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- 34
- History
- Created on 12 May 2017 · updated on 13 May 2017
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