Chapters 46-49: Sensory Transmission and Somatic Sensations 1 Lateral inhibition

Question

Chapters 46-49: Sensory Transmission and Somatic Sensations 1 Lateral inhibition 2 Nociceptors 3 Meissner's Corpusclesn 4 EPSP 5 IPSP 6 Ruffini's Endings 7 Receptor Potential 8 Tonic receptors 9 Phasic receptors 10 Merkel's Discs 11 Electrical synapse 12 sensory transduction A Rapidly adapting touch receptors with high sensitivity B Postsynaptic membrane potential becomes more negative C Inhibiting adjacent neurons to aid in stimulus localization D Sensory stimuli excites receptor to alter membrane potential E Transmitts deep touch and pressure F Rapidly adapting receptors signal stimuli changes G Free nerve endings specialized in detecting painful stimuli H Specialize in transmitting initial contact and continual contact I Slowly adapting receptors signal continual stimuli precense K L sensory stimulus translated into an electrical signal Consist of gap junctions

Explanation / Answer

1.Lateral inhibition - inhibiting adjacent neurons to aid in stimulus localization.

2.Nociceptor-free nerve ending specialized in detecting pain full stimuli.

3.Meissner'carpuscle - transmit deep touch and pressure.

4.EPSP-Sensory stimuli excites receptor to alter membrane potential.

5. IPSP- postsynaptic membrane become more negative.

6.Ruffni's nerve endings-sensory stimuli excites receptor to alter membrane potential

7.Receptor potential - postsynaptic membrane potential following Na+influx.

8-Tonic receptors - slowly adapting receptors signal continual stimuli presence.

9-Phasic receptors - rapidly adaptating receptors signal stimuli changes.

10- Merkel's disc- slowly adaptating receptors signal stimuli changes.

11.Electrical synapse - consists of gap junction

12. Sensory transduction - sensory stimulus is translated into an electrical signal.

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