Search Results for: sensory receptor
Sensory Systems
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More
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
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
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Thermoreceptor
Definition noun, plural: thermoreceptors The sensory nerve ending in a sensory cell sensitive to changes in temperature... 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
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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
The Human Nervous System
The nervous system is essentially a biological information highway, and is responsible for controlling all the biological... Read More
Muscle spindle
Definition noun The neuromuscular spindle is a fusiform mechanoreceptor (specifically a stretch receptor) within the... Read More
Taste buds
taste buds small sensory organs which contain gustatory receptor cells, basal cells, and supporting cells. Taste buds in... Read More
Olfactory nerve
Definition noun, plural: olfactory nerves The cranial nerve comprised of sensory nerve fibers that carry impulses for the... 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
Consciousness and Behavior
States of Consciousness Defined either by (1) behavior - ranging from attentive and alert to coma and (2) electrical... Read More