31 results found

Search Results for: sensory receptor

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Afferent Nerve

Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More

Stimulus

We can detect hot or cold environments using our sense of temperature. When the temperature is too hot, sweating... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Sensory cell

sensory cell A cell in the peripheral nervous system that receives afferent (sensory) input; sensory receptor... Read More

Thermoreceptor

Definition noun, plural: thermoreceptors The sensory nerve ending in a sensory cell sensitive to changes in temperature... Read More

Sensory Receptor

An organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to... Read More

Mechanoreceptor

Definition noun, plural: mechanoreceptors A sensory receptor chiefly in the skin or in the body surface of an organism used... Read More

Generator potential

Definition noun A graded response to a stimulus, or a graded depolarization induced in the terminal of a sensory receptor,... Read More

Biology

Biology Definition Biology is the branch of science that primarily deals with the structure, function, growth, evolution,... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Proprioceptor

Definition noun, plural: proprioceptors A sensory receptor located in the subcutaneous tissues, and is capable of detecting... Read More

Chemoreceptor

Definition noun, plural: chemoreceptors (1) A sensory nerve cell or sense organ, as of smell, or taste, that are able to... Read More

Gag reflex

Definition noun, plural: gag reflexes A reflex contraction characterized by retching or gagging when a foreign body comes in... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define epidermis as one or more layers of cells forming the tough and... Read More

Receptor

receptor 1. A molecular structure within a cell or on the surface characterised by selective binding of a specific substance... Read More

Muscle spindle

Definition noun A fusiform mechanoreceptor (specifically a stretch receptor) within the skeletal muscle, composed of a... Read More

Neuromuscular spindle

Definition noun A fusiform end organ within the skeletal muscle. It is composed of a bundle of 3 to 10 striated muscle... Read More

Olfactory nerve

Definition noun, plural: olfactory nerves The cranial nerve comprised of sensory nerve fibers that carry impulses for the... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Antenna

Antenna Origin: L. Antenna sail-yard; NL, a feeler, horn of an insect. (Science: zoology) a movable, articulated organ of... Read More

Signal transduction

Signal transduction The cascade of processes by which an extracellular signal (typically a hormone or neurotransmitter)... Read More

Taste buds

taste buds small sensory organs which contain gustatory receptor cells, basal cells, and supporting cells. Taste buds in... Read More

Merkel disk receptor

Definition noun A single sensory nerve ending characterized by a terminal cuplike, expanded tip that is in contact with the... Read More

Bipolar neurons

Bipolar neurons are neurons with two processes-an axon and a dendrite. Bipolar neurons are rare in adults, found only in... Read More

Cell

A cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular organisms,... Read More

Merkels tactile disk

Definition noun A single sensory nerve ending characterized by a terminal cuplike, expanded tip that is in contact with the... Read More