Table of Contents
- 1 What nerve cells detect stimuli?
- 2 How is a stimuli detected?
- 3 How do neurons detect stimuli?
- 4 What do receptor cells detect?
- 5 What is a cell or organ that is specialized to detect a stimulus called?
- 6 What are the cells which are sensitive to stimuli called?
- 7 What is the function of receptors in the brain?
- 8 Which is dependent on the activation of sensory receptors?
What nerve cells detect stimuli?
Effectors
| Sensory receptors | These detect the changes in the environment (stimulus) |
|---|---|
| Motor neurons | Nerve cells that receive a signal from the CNS and transfer it to the effector |
| Effectors | The muscles or glands that produce a response to the stimulus |
How is a stimuli detected?
Our sense organs detect changes in the world around us known as stimuli . The sense organs contain groups of specialised cells called receptor cells which produce electrical impulses in response to specific stimuli. The table shows the stimuli which cause receptor cells in the sense organs to produce impulses.
Which of the 3 neurons detect stimuli?
Sensory neurons
Three types of neurons are required to transmit information via the stimulus-response pathway: Sensory neurons transmit information from sensory receptors to the central nervous system (CNS) Relay neurons (interneurons) transmit information within the CNS as part of the decision-making process.
How do neurons detect stimuli?
In one, a neuron works with a sensory receptor, a cell, or cell process that is specialized to engage with and detect a specific stimulus. Stimulation of the sensory receptor activates the associated afferent neuron, which carries information about the stimulus to the central nervous system.
What do receptor cells detect?
Receptors. Receptors are groups of specialised cells. They detect a change in the environment (stimulus) and stimulate electrical impulses in response. Sense organs contain groups of receptors that respond to specific stimuli.
Which cells detect stimuli and transmit signals to other cells in nervous tissue?
Nervous tissue is composed of two main cell types: neurons and glial cells. Neurons transmit nerve messages.
What is a cell or organ that is specialized to detect a stimulus called?
receptor organ. a cell or organ specialized to detect a stimulus.
What are the cells which are sensitive to stimuli called?
Plants can also respond to stimuli but the response is usually slower than that of animals. Receptors are specialised cells that detect a stimulus. Their job is to convert the stimulus into electrical signals in nerve cells.
How are receptors specialised to detect different stimuli?
Some receptors can detect several different stimuli but they are usually specialised to detect one type of stimulus: A sense organ is a group of receptors gathered together with some other structures.The other structures help the receptors to work more efficiently. An example of this is the eye.
What is the function of receptors in the brain?
Receptors are specialised cells that detect a stimulus. Their job is to convert the stimulus into electrical signals in nerve cells. Some receptors can detect several different stimuli but they are usually specialised to detect one type of stimulus: light – photoreceptors in the eye. sound – vibration receptors in the ears.
Which is dependent on the activation of sensory receptors?
Sensation is the activation of sensory receptors at the level of the stimulus. Perception is the central processing of sensory stimuli into a meaningful pattern involving awareness. Perception is dependent on sensation, but not all sensations are perceived. Receptors are the structures (and sometimes whole cells) that detect sensations.