Physiology II: Somatosensory System 1 - Primary Sensory Neurones and their Modalities

Questão 1 de 13

1

The Somatosensory System can be subdivided into 3 parts:
❌: Registers cutaneous sensation by numerous receptors
❌: Monitors posture and movement via receptors in muscles, tendons and joints
❌: Reports upon the internal state of the body

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Enteroceptive Division

Proprioceptive Division

Exteroceptive Division

Explicação

Questão 2 de 13

1

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Resting membrane potential is mV, whereras the resting potential of a neuron is mV.

Explicação

Questão 3 de 13

1

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A is a receptor that responds to potentially damaging stimuli by sending 'threat' signals to the brain

Explicação

Questão 4 de 13

1

❌ mediate cold, cool, indifferent, warm and hot sensations
❌ respond to extreme degrees of heat (both hot and cold)
❌ responds to potentially damaging substances in tissue

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Low threshold thermoreceptors

Thermal nociceptors

Chemical nociceptors

Low threshold chemical receptors

Explicação

Questão 5 de 13

1

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Cutaneous afferent fibres in the fingertips are of a ( high, low ) density of innervation, each fibre having a ( small, large ) receptive field in order to allow a ( high, low ) acuity in terms of sensation.

Explicação

Questão 6 de 13

1

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Two point discrimination (spacial acuity) in higher in the ( finger tip, forearm ) but lower in the ( forearm, finger tip ), due to the differing sizes of the afferent fibres' receptive fields.

Explicação

Questão 7 de 13

1

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As receptive field size increases, spatial acuity ( decreases, increases ).

Explicação

Questão 8 de 13

1

Which layer of the epidermis contains merkel cells?

Selecione uma das seguintes:

Basal layer
Keratin layer
Granular layer
Prickle cell layer

Explicação

Questão 9 de 13

1

❌: Sensitive to sustained pressure, texture and edges of objects
❌: Sensitive to stroking, flutter & low frequency vibration
❌: Very sensitive to higher frequency vibration, act as event detectors during object manipulation
❌: Sensitive to shearing forces (e.g. drag)

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Merkel cells

Meissner corpuscles

Pacinian corpuscles

Ruffini endings

Explicação

Questão 10 de 13

1

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Hairless skin is referred to as skin

Explicação

Questão 11 de 13

1

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( Pacinian corpuscles, Meissner corpuscles, Ruffini endings ) are found in the subcutaneous tissues

Explicação

Questão 12 de 13

1

Clique no ponto laranja e selecione a resposta correta.

The structure is called a ...

Explicação

Questão 13 de 13

1

Each hair unit is innervated by free nerve endings that either wrap around the follicle or run parallel to it. Label these fibres below.

Arraste a resposta correta para cada ponto laranja.

Palisade Fibres

Circumferential Fibres

Longitudinal Fibres

	Criado por Matthew Coulson quase 6 anos atrás

Somatosensory system 1: Primary sensory neurones and their modalities given on 3/5/18

Physiology II: Somatosensory System 1 - Primary Sensory Neurones and their Modalities

Physiology II: Somatosensory System 1 - Primary Sensory Neurones and their Modalities

Questão 1 de 13

The Somatosensory System can be subdivided into 3 parts: ❌: Registers cutaneous sensation by numerous receptors ❌: Monitors posture and movement via receptors in muscles, tendons and joints ❌: Reports upon the internal state of the body

Arraste e solte para completar o texto.

Explicação

Questão 2 de 13

Preencha os espaços em branco para completar o texto.

Resting membrane potential is mV, whereras the resting potential of a neuron is mV.

Explicação

Questão 3 de 13

Preencha o espaço em branco para completar o texto.

A is a receptor that responds to potentially damaging stimuli by sending 'threat' signals to the brain

Explicação

Questão 4 de 13

❌ mediate cold, cool, indifferent, warm and hot sensations ❌ respond to extreme degrees of heat (both hot and cold) ❌ responds to potentially damaging substances in tissue

Arraste e solte para completar o texto.

Explicação

Questão 5 de 13

Selecione das listas do Menu para completar o texto.

Cutaneous afferent fibres in the fingertips are of a high low( high, low ) density of innervation, each fibre having a small large( small, large ) receptive field in order to allow a high low( high, low ) acuity in terms of sensation.

Explicação

Questão 6 de 13

Selecione das listas do Menu para completar o texto.

Two point discrimination (spacial acuity) in higher in the finger tip forearm( finger tip, forearm ) but lower in the forearm finger tip( forearm, finger tip ), due to the differing sizes of the afferent fibres' receptive fields.

Explicação

Questão 7 de 13

Selecione da lista do Menu para completar o texto.

As receptive field size increases, spatial acuity decreases increases( decreases, increases ).

Explicação

Questão 8 de 13

Which layer of the epidermis contains merkel cells?

Selecione uma das seguintes:

Explicação

Questão 9 de 13

❌: Sensitive to sustained pressure, texture and edges of objects ❌: Sensitive to stroking, flutter & low frequency vibration ❌: Very sensitive to higher frequency vibration, act as event detectors during object manipulation ❌: Sensitive to shearing forces (e.g. drag)

Arraste e solte para completar o texto.

Explicação

Questão 10 de 13

Preencha o espaço em branco para completar o texto.

Hairless skin is referred to as skin

Explicação

Questão 11 de 13

Selecione da lista do Menu para completar o texto.

Pacinian corpuscles Meissner corpuscles Ruffini endings( Pacinian corpuscles, Meissner corpuscles, Ruffini endings ) are found in the subcutaneous tissues

Explicação

Questão 12 de 13

Clique no ponto laranja e selecione a resposta correta.

The structure is called a ...

Explicação

Questão 13 de 13

Each hair unit is innervated by free nerve endings that either wrap around the follicle or run parallel to it. Label these fibres below.

Arraste a resposta correta para cada ponto laranja.

Explicação

The Somatosensory System can be subdivided into 3 parts:
❌: Registers cutaneous sensation by numerous receptors
❌: Monitors posture and movement via receptors in muscles, tendons and joints
❌: Reports upon the internal state of the body

❌ mediate cold, cool, indifferent, warm and hot sensations
❌ respond to extreme degrees of heat (both hot and cold)
❌ responds to potentially damaging substances in tissue

Cutaneous afferent fibres in the fingertips are of a ( high, low ) density of innervation, each fibre having a ( small, large ) receptive field in order to allow a ( high, low ) acuity in terms of sensation.

Two point discrimination (spacial acuity) in higher in the ( finger tip, forearm ) but lower in the ( forearm, finger tip ), due to the differing sizes of the afferent fibres' receptive fields.

As receptive field size increases, spatial acuity ( decreases, increases ).

❌: Sensitive to sustained pressure, texture and edges of objects
❌: Sensitive to stroking, flutter & low frequency vibration
❌: Very sensitive to higher frequency vibration, act as event detectors during object manipulation
❌: Sensitive to shearing forces (e.g. drag)

( Pacinian corpuscles, Meissner corpuscles, Ruffini endings ) are found in the subcutaneous tissues