vasoconstricted
Blood pathways squeezed
Vasoconstricted describes blood vessels that have narrowed, reducing blood flow.
The condition occurs naturally in response to cold or stress, or artificially through medications.
The vasoconstricted arteries raised her blood pressure.
The opposite state is vasodilated.
Alertness and stress hormone
- vasopressinFluid-conserving pituitary hormone
- epinephrineAdrenal stress hormone
- serotoninMood-regulating brain chemical
- agonistReceptor-binding trigger molecule
receptor · catecholamine · dopamine · ergotamine · caffeine · nicotine · cocaine · decongestant
Chronic elevated arterial pressure
- ischemiaInsufficient tissue blood supply
- hypoxiaInsufficient tissue oxygenation
- atherosclerosisArterial plaque accumulation disease
- migraineSevere neurological head pain
frostbite · stroke · angina · preeclampsia · gangrene · claudication · cyanosis · pallor
Made less wide
- arteriolesSmallest arterial vessels
- capillariesTiniest blood vessels
- peripheralExternal computer add-on
- resistanceCapacity to withstand force
vasomotor · autoregulation · pressure · bloodflow · sphincter · tightening · narrowing · vessel
Dangerously low body temperature
- freezingExtremely cold
- frostbiteFreezing of body tissue
- chillyModerately cold
- shiveringInvoluntary bodily trembling
numb · pallor · peripheral · extremities · fingers · toes · goosebumps · blue
norepinephrine
Alertness and stress hormone
- vasopressinFluid-conserving pituitary hormone
- epinephrineAdrenal stress hormone
- serotoninMood-regulating brain chemical
agonist · receptor · catecholamine · dopamine · ergotamine · caffeine · nicotine · cocaine · decongestant · amphetamine
hypertension
Chronic elevated arterial pressure
- ischemiaInsufficient tissue blood supply
- hypoxiaInsufficient tissue oxygenation
- atherosclerosisArterial plaque accumulation disease
migraine · frostbite · stroke · angina · preeclampsia · gangrene · claudication · cyanosis · pallor · numbness
narrowed
Made less wide
- arteriolesSmallest arterial vessels
- capillariesTiniest blood vessels
- peripheralExternal computer add-on
resistance · vasomotor · autoregulation · pressure · bloodflow · sphincter · tightening · narrowing · vessel · lumen
hypothermia
Dangerously low body temperature
shivering · numb · pallor · peripheral · extremities · fingers · toes · goosebumps · blue · blanched
sympathetic
Feeling others' emotions
- adrenalineEmergency response hormone
- fight-or-flightAcute threat reaction
- anxietyPersistent apprehensive distress
tension · cortisol · alarm · arousal · acute · nervous · startle · panic · shock · trauma