Question

Algesic receptor are for
A. Cold
B. Stimuli
C. Pressure
D. Pain

Answer 1

Hint: For you to understand this question, try understanding the meaning of the word algesic. Algesic is something relating to or pertaining to pain. In its true sense, algesic is the hypersensitivity to pain or relating to or causing pain. So, try remembering analgesics which is mostly used by people to relieve pain and used in everyday life. In this word lies your answer.

Complete answer:
In order to deduce an answer, you must know what receptors are. Receptors are membrane-bound proteins that bind to ligands. After binding, they start a pathway that leads towards a cellular reaction cascade. Pressure receptors are also known as baroreceptors that detect a change in internal pressure. They are found within the aortic arch and the carotid sinus. Stimuli receptors are of various types like chemoreceptors and photoreceptors that react to changes in the chemical environment in the body and the latter detects and creates a response to light. However cold receptors are those receptors that are sensitive to changes in temperature in the body. It is a non-specialized receptor and consists of a receptive portion of the sensory neuron. They may be non-myelinated or somewhat myelinated. This leaves us with analgesic receptors that are specifically for pain. An analgesic is something that helps in relieving pain.

Thus, the correct answer is option D Pain.

Note:
Analgesics act in many ways to relieve pain. They primarily act on the central nervous system and the peripheral nervous system to relieve pain. They are very different from anesthetics that temporarily shut down or disable sensation.