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The receptor for the salivary reflex is primarily taste receptors located in the taste buds on the tongue. These receptors detect the presence of food in the mouth, which triggers the salivary reflex and leads to the production of saliva.
The muscarinic receptors on the salivary gland cells are responsible for the secretion of salivary amylase. Stimulation of these receptors by the neurotransmitter acetylcholine triggers the release of amylase into the saliva.
This is a response, specifically a reflexive response known as salivation. The sight or smell of food triggers the brain to send signals to the salivary glands, causing the mouth to water in preparation for eating.
No, a stimulus is an external event or agent that elicits a response or reaction from an organism. It can be a physical sensation, like temperature or pressure, or a signal from the environment that triggers a response in an organism.
People have triggers because of past traumatic experiences or associations they have formed between certain stimuli and negative emotions. Triggers can be anything that reminds a person of their trauma and can cause them to relive the experience or feel intense emotions. Therapy and coping techniques can help individuals identify and manage their triggers effectively.