receptor

Cell's docking site

A receptor is a structure that receives signals or stimuli.

In biology, receptors are proteins on or within cells that bind to specific molecules—hormones, neurotransmitters, drugs—triggering a cellular response: The drug blocks pain receptors.

Sensory receptors detect light, sound, pressure, or temperature.

In telecommunications, a receptor is any device that receives signals.

neurotransmission

synapse

Nerve signal crossing point

acetylcholine · glutamate · GABA · norepinephrine · histamine · glycine · adenosine · endorphin · oxytocin · presynaptic

biochemistry

ligand

Molecule that binds centrally

affinity · modulator · inhibitor · selectivity · potency · saturation · kinetics · dose-response · desensitization · internalization

sensory

photoreceptor

Cell responding to light

proprioceptor · baroreceptor · olfactory · gustatory · tactile · retina · cochlea · stimulus · sensation · transduction

cellular

membrane

Thin tissue sheet

nuclear · phosphorylation · cascade · pathway · activation · expression · endocytosis · trafficking · localization

hormonal

insulin

Pancreatic glucose-regulating hormone

thyroid · cortisol · adrenaline · endocrine · steroid · metabolic

immune

antibody

Protein targeting foreign substances

  • antigenImmune response inducer
  • T-cellThymus-derived immune lymphocyte
  • B-cellAntibody-secreting immune cell

cytokine · immunoglobulin · complement · lymphocyte · interferon · interleukin · inflammatory · recognition · pathogen

Categories
Opposites
signal direction

receptortransmitter

Signal-emitting device

emitter · sender · broadcaster · signaler · effector

functional role in response

receptoreffector

Output mechanism in systems

actuator · motor neuron · executor · muscle · gland

binding relationship

receptorligand

Molecule that binds centrally

agonist · neurotransmitter · hormone · messenger · substrate

Phrases
Family

reception, receptive, receptionist, receptionists, preceptor, receptivity, receptors, preceptors

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