Mer Scott
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(Human Movement and Sensation (L16 - 31)) HUBS191 Test sobre L28 Sensory Receptors and the Somatosensory Cortex, creado por Mer Scott el 12/05/2017.

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L28 Sensory Receptors and the Somatosensory Cortex

L28 Sensory Receptors and the Somatosensory Cortex

Pregunta 1 de 16

1

Sensory neurons are generally unipolar.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 2 de 16

1

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.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 3 de 16

1

Which of these is not a special sense?

Selecciona una de las siguientes respuestas posibles:

  • Vision

  • Hearing

  • Taste

  • Smell

  • Vestibular (balance)

  • Touch

Explicación

Pregunta 4 de 16

1

Which of these are somatic & visceral senses?

Selecciona una o más de las siguientes respuestas posibles:

  • Touch

  • Pain

  • Hot/Cold

  • Vestibular (balance)

  • Body position

  • Vision

Explicación

Pregunta 5 de 16

1

What is it called when a stimulus is converted into an action potential?

Selecciona una de las siguientes respuestas posibles:

  • Translation

  • Transduction

  • Transferral

Explicación

Pregunta 6 de 16

1

Choose the correct statement about types of sensory information coding.

Selecciona una de las siguientes respuestas posibles:

  • Modality indicates which type or sensory receptor was activated.

  • Intensity is conferred by the strength of action potentials fired.

  • The duration of stimulus is conferred by the frequency of action potentials firing.

  • The location is conferred by the location of the axon terminal the potential stimulates.

Explicación

Pregunta 7 de 16

1

The proprioreceptors detect posture and spatial position of muscle by:

Selecciona una de las siguientes respuestas posibles:

  • detecting change of length in sarcomeres

  • detecting change of length in muscle spindles

  • detecting change of tension in muscle spindles

  • detecting change of tension in sarcomeres

Explicación

Pregunta 8 de 16

1

(choose all correct options)
The Golgi tendon organ:

Selecciona una o más de las siguientes respuestas posibles:

  • detects change in tension in muscle

  • provides a stretch reflex

  • protects from muscle tearing

Explicación

Pregunta 9 de 16

1

The muscle spindles can cause contraction of the muscle while the Golgi tendon organ can cause relaxation of the muscle.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 10 de 16

1

Choose the incorrect statement about skin receptors.

Selecciona una de las siguientes respuestas posibles:

  • Pacini's corpuscle are sensitive to changes in pressure and especially sensitive to vibration.

  • Ruffini's corpuscle is a stretch receptor with orientation.

  • Free nerve endings responsive to pain and itching.

  • Merkel's endings/discs and Meissner's corpuscle are deep, non peripheral sensors.

Explicación

Pregunta 11 de 16

1

Sensors primarily detect change, thus they will adapt to a stimulus and response will decay over time until a new change occurs.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 12 de 16

1

Touch receptors are slow adapting, while stretch receptors are rapidly adapting.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 13 de 16

1

Choose the incorrect statement about receptive fields.

Selecciona una de las siguientes respuestas posibles:

  • A receptive field is an area which when stimulated activates an associated neuron.

  • The smaller the field and denser the adjacent fields the better the discrimination of location.

  • The larger the field and sparser the fields the easier it is to discriminate between two points of contact.

Explicación

Pregunta 14 de 16

1

Choose the correct statements about the somatosensory areas of the cortex.

Selecciona una o más de las siguientes respuestas posibles:

  • The primary somatosensory cortex sits on the pre-central gyrus.

  • The primary somatosensory cortex gives a conscious identification of when and where a stimulus originated.

  • The somatic sensory association area is anterior to the primary somatosensory cortex.

  • The somatic sensory association area is responsible for meaningful interpretation of information from the primary somatosensory cortex.

Explicación

Pregunta 15 de 16

1

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.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 16 de 16

1

Choose the incorrect statement about pain differentiation.

Selecciona una de las siguientes respuestas posibles:

  • Chronic/slow pain is transmitted by axons with a small diameter.

  • Chronic/slow pain is transmitted by myelinated axons

  • Acute/fast pain is generally somatic.

  • Chronic/slow pain is generally visceral.

  • Acute pain is transmitted by A fibers.

  • Acute pain is transmitted by axons with a large diameter.

Explicación

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