When an environmental stimulus is received the signal is usually transmitted quizlet?
Terms in this set (40) When an environmental stimulus is received, the signal is usually transmitted through three types of nerve cells.
How does a stimulus reach the brain?
A withdrawal reflex starts when sensory nerves in your skin receive a stimulus from outside the body. That stimulus starts a nerve impulse along the cell membrane. Your emotions, decisions, and physical actions all happen through nerve impulses traveling through neurons in your brain, spinal cord and nerves.
What is the ability to quickly respond to a stimulus?
irritability
What carries out a response to a stimulus?
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.
What is the cell or organ that directly carries out a response to a stimulus Calle?
The Nervous System 7th grade
| A | B |
|---|---|
| response | What your body does in reaction to a stimulus. |
| neurons | The cells that carry information through the nervous system are called…. |
| nerve impulse | The message that a neuron carries is called…. |
| dendrite | An extension that carries impulses toward the cell body. |
What is the cell organ that directly carries out a response to a stimulus called?
Cards In This Set
| Front | Back |
|---|---|
| An organ is an anatomical structure made of at least two kinds of | Tissues |
| Structures within a cell that carry out specific functions for it are called | Organelles |
| A structure that carries out the body’s ultimate response to a stimulus is called an | Effector |
What is the relationship between a stimulus and a response?
A change in the environment is the stimulus; the reaction of the organism to it is the response.
What is meant by a response to a stimulus?
Synonyms: physiological response to stimulus. Definition: Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.)
What is a stimulus in ABA?
A “stimulus” is an energy change that affects an organism through its receptor cells. Even so, some stimuli might be neutral to a child and not elicit any response at all. A “discriminative stimulus” (SD) is a stimulus in which the presence of the behavior produces reinforcement.
How do insects respond to a stimulus?
In tropotactic behavior, insects move toward or away from a stimulus, such as light, humidity, or temperature. Such movements typically lead the animals to more favorable conditions within relatively short distances.
Which behavior is a response to an external stimulus?
Plant Responses to External Stimuli One type of behavioral response in plants is tropism, a directed growth or movement in response to a stimulus. Tropism can be positive tropism towards the stimulus. Tropism can also be negative tropism, a directed growth or movement away from the stimulus.
What are examples of external stimuli?
External stimuli are changes outside the body, or knowledge that is passed to us through our senses. This could be cold or hot weather, light levels, or danger. Internal stimuli are changes to conditions inside the body, such as dangerous food in the stomach, viruses in the body, or lack of food or water.
What is a response to external stimuli?
Synonyms: response to environmental stimulus. Definition: Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an external stimulus.
What are the 3 types of stimuli?
There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.
What are 5 types of sensory receptors?
Terms in this set (5)
- chemoreceptors. stimulated by changes in the chemical concentration of substances.
- pain receptors. stimulated by tissue damage.
- thermoreceptors. stimulated by changes in temperature.
- mechanoreceptors. stimulated by changes in pressure or movement.
- photoreceptors. stimulated by light energy.