12 Questions
Which type of sensation is responsible for detecting stimuli from the outside of the body?
Exteroception
What is the main function of nociceptors?
Detect damage to tissues
Which type of sensory neuron can respond to only one type of stimuli?
Bipolar neuron
What is the purpose of transduction in the process of sensation?
Conversion of stimulus into a graded potential
What is the function of proprioceptors?
Detect body position and movement
What type of sensory receptor is most sensitive to pain (nociception)?
Free nerve endings
Which type of sensory receptor is responsible for detecting light?
Photoreceptors
What happens when a receptor potential is produced by vision, hearing, equilibrium, or taste receptors?
Release of neurotransmitter molecules on 1st order neurons
What is the main function of rapidly adapting receptors?
Adapt quickly; specialized for signaling stimulus changes
What is the purpose of encapsulated nerve endings in the sensory system?
Sensitive to mechanical deformation
Which classification of sensory receptors detects pressure or stretch?
Mechanoreceptors
What happens to the responsiveness of a receptor when there is a change in sensitivity to long-lasting stimuli?
Receptor responsiveness decreases
Study Notes
Types of Sensation and Receptors
- Extteroceptors detect stimuli from the outside of the body.
Nociception and Pain
- Nociceptors detect painful stimuli, and their main function is to respond to tissue damage or potential damage.
Sensory Neurons
- Unipolar sensory neurons can respond to only one type of stimuli.
Transduction and Sensation
- The purpose of transduction is to convert environmental stimuli into electrical signals that can be interpreted by the central nervous system.
Proprioception and Movement
- Proprioceptors detect changes in muscle length and tension, providing information about body position and movement.
Types of Sensory Receptors
- Nociceptors are the type of sensory receptor most sensitive to pain (nociception).
- Photoreceptors are responsible for detecting light.
Receptor Potentials and Signal Transduction
- When a receptor potential is produced by vision, hearing, equilibrium, or taste receptors, it generates an electrical signal that can trigger an action potential.
Rapidly Adapting Receptors
- The main function of rapidly adapting receptors is to detect rapid changes in stimuli.
Encapsulated Nerve Endings
- The purpose of encapsulated nerve endings in the sensory system is to provide a protective covering for sensitive nerve endings.
Mechanoreceptors
- Mechanoreceptors detect pressure or stretch, and are classified as a type of sensory receptor.
Receptor Sensitivity
- When there is a change in sensitivity to long-lasting stimuli, the responsiveness of a receptor may decrease, a phenomenon known as adaptation.
Test your knowledge about the levels and components of sensation, pathways for sensation from body to brain, pathways for motor signals from brain to body, and the integration process of the sensory system. Explore topics such as sensory receptors and the conscious awareness and interpretation of sensations.
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