| D002346 |
Carotid Sinus |
The dilated portion of the common carotid artery at its bifurcation into external and internal carotids. It contains baroreceptors which, when stimulated, cause slowing of the heart, vasodilatation, and a fall in blood pressure. |
Sinus, Carotid |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001281 |
Atrial Fibrillation |
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation. |
Auricular Fibrillation,Familial Atrial Fibrillation,Paroxysmal Atrial Fibrillation,Persistent Atrial Fibrillation,Atrial Fibrillation, Familial,Atrial Fibrillation, Paroxysmal,Atrial Fibrillation, Persistent,Atrial Fibrillations,Atrial Fibrillations, Familial,Atrial Fibrillations, Paroxysmal,Atrial Fibrillations, Persistent,Auricular Fibrillations,Familial Atrial Fibrillations,Fibrillation, Atrial,Fibrillation, Auricular,Fibrillation, Familial Atrial,Fibrillation, Paroxysmal Atrial,Fibrillation, Persistent Atrial,Fibrillations, Atrial,Fibrillations, Auricular,Fibrillations, Familial Atrial,Fibrillations, Paroxysmal Atrial,Fibrillations, Persistent Atrial,Paroxysmal Atrial Fibrillations,Persistent Atrial Fibrillations |
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| D013575 |
Syncope |
A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9) |
Drop Attack,Fainting,Presyncope,Syncope, Postural,Syncopal Episode,Syncopal Vertigo,Syncope, Cardiogenic,Syncope, Carotid Sinus,Syncope, Convulsive,Syncope, Deglutitional,Syncope, Effort,Syncope, Hyperventilation,Syncope, Micturition,Syncope, Situational,Syncope, Stokes-Adams,Syncope, Tussive,Attack, Drop,Cardiogenic Syncope,Cardiogenic Syncopes,Carotid Sinus Syncope,Carotid Sinus Syncopes,Convulsive Syncope,Convulsive Syncopes,Deglutitional Syncope,Deglutitional Syncopes,Drop Attacks,Effort Syncope,Effort Syncopes,Episode, Syncopal,Hyperventilation Syncope,Hyperventilation Syncopes,Micturition Syncope,Micturition Syncopes,Postural Syncope,Postural Syncopes,Presyncopes,Situational Syncope,Situational Syncopes,Stokes-Adams Syncope,Stokes-Adams Syncopes,Syncopal Episodes,Syncope, Stokes Adams,Syncopes,Syncopes, Cardiogenic,Syncopes, Carotid Sinus,Syncopes, Convulsive,Syncopes, Deglutitional,Syncopes, Effort,Syncopes, Hyperventilation,Syncopes, Micturition,Syncopes, Postural,Syncopes, Situational,Syncopes, Stokes-Adams,Syncopes, Tussive,Tussive Syncope,Tussive Syncopes,Vertigo, Syncopal,Vertigos, Syncopal |
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| D013577 |
Syndrome |
A characteristic symptom complex. |
Symptom Cluster,Cluster, Symptom,Clusters, Symptom,Symptom Clusters,Syndromes |
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| D017704 |
Baroreflex |
A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure. |
Reflex, Baroreceptor,Baroreceptor Reflex,Baroreceptor Reflexes,Baroreflexes,Reflexes, Baroreceptor |
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| D019462 |
Syncope, Vasovagal |
Loss of consciousness due to a reduction in blood pressure that is associated with an increase in vagal tone and peripheral vasodilation. |
Syncope, Neurocardiogenic,Syncope, Neurogenic,Syncope, Vasodepressor,Neurally Mediated Faint,Syncope, Cerebral,Syncope, Malignant Neurocardiogenic,Syncope, Supine,Syncope, Vasovagal, Neurally-Mediated,Cerebral Syncope,Cerebral Syncopes,Faint, Neurally Mediated,Faints, Neurally Mediated,Malignant Neurocardiogenic Syncope,Malignant Neurocardiogenic Syncopes,Neurally Mediated Faints,Neurocardiogenic Syncope,Neurocardiogenic Syncope, Malignant,Neurocardiogenic Syncopes,Neurocardiogenic Syncopes, Malignant,Neurogenic Syncope,Neurogenic Syncopes,Supine Syncope,Supine Syncopes,Syncopes, Cerebral,Syncopes, Malignant Neurocardiogenic,Syncopes, Neurocardiogenic,Syncopes, Neurogenic,Syncopes, Supine,Syncopes, Vasodepressor,Syncopes, Vasovagal,Vasodepressor Syncope,Vasodepressor Syncopes,Vasovagal Syncope,Vasovagal Syncopes |
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