afferent
Carrying signals in
Afferent describes nerves or vessels that carry signals or substances toward a central point—typically the brain, spinal cord, or an organ.
Afferent nerves carry sensory information inward; afferent blood vessels bring blood to an organ.
The opposite is efferent, which carries outward.
Afferent pathways transmit pain signals to the brain.
Perceived stimulus or phenomenon
- perceptionMental interpretation of stimuli
- touchPerceiving through physical contact
- painBodily or emotional distress
- temperatureMeasured heat intensity
pressure · vibration · itch · tactile · somatosensory · visceral · somatic · kinesthesia
Neuron's input branch
- axonNeuron's signal-sending projection
- interneuronNerve cell connecting others
- somaBodily cells, excluding gametes
- myelinNerve fiber insulation
Sensory cell for pressure
- thermoreceptorNeuron sensing temperature changes
- proprioceptorSensory receptor detecting position
- chemoreceptorSensory unit detecting chemicals
- photoreceptorCell responding to light
Nerve cell chemical communication
- depolarizationLoss of electrical gradient
- excitationStimulation of response
Capillary knot filtering blood
- kidneyBlood-filtering organ
- renalOf the kidneys
- filtrationSeparating solids from liquids
- nephronKidney's filtration unit
sensation
Perceived stimulus or phenomenon
- perceptionMental interpretation of stimuli
- touchPerceiving through physical contact
- painBodily or emotional distress
temperature · pressure · vibration · itch · tactile · somatosensory · visceral · somatic · kinesthesia · balance
dendrite
Neuron's input branch
- axonNeuron's signal-sending projection
- interneuronNerve cell connecting others
- somaBodily cells, excluding gametes
mechanoreceptor
Sensory cell for pressure
- thermoreceptorNeuron sensing temperature changes
- proprioceptorSensory receptor detecting position
- chemoreceptorSensory unit detecting chemicals
neurotransmission
Nerve cell chemical communication
- depolarizationLoss of electrical gradient
- excitationStimulation of response
glomerulus
Capillary knot filtering blood
- kidneyBlood-filtering organ
- renalOf the kidneys
- filtrationSeparating solids from liquids
nephron · vasodilation · vasoconstriction · perfusion · arteriolar
- anatomy termsanterior, posterior, dorsal, ventral, medial
- neuroscienceneuron, MRI, brain, neurons, synapses
- sensessight, smell, taste, hearing, touch
- nerve cellsneuron, nerve cell, brain cell, axon, dendrite
- neuro termsneural, neuronal, cerebral, cortical, synaptic
- autonomic systemsympathetic, parasympathetic, vagus nerve, fight or flight, rest and digest
afferentefferent
Conveying outward from center
motor neuron · centrifugal · outgoing · motor · neuromotor
- afferent arterioleBlood vessel entering glomerulus