3203 results
Lymph Node Anatomy
Waldeyer Ring, Pre-auricular, Cervical, Occipital, Supraclavicular, Infraclavicular, Pectoral, Axillary, Mediastinal, Hilar, Epitrochlear, Brachial, Spleen,
Lymph Node Anatomy ... Spleen, Mesenteric, Paraaortic ... Popliteal #Lymph #Node
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
pathways through SA Node ... , Atrium, AV Node ... SVT #diagnosis #cardiology
Cervical Lymphadenopathy - Lymph Node Drainage
Preauricular nodes - Drain scalp, skin
 • Differential diagnosis: Scalp infections,
Lymphadenopathy - Lymph Node ... Preauricular nodes ... Posterior cervical nodes ... as preauricular nodes ... Supraclavicular nodes
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Arrhythmias • SA node ... Syndrome (SSS) • AV node ... 100 bpm) • SA node ... Tachycardia (MAT) • AV node ... Diagnosis #Causes #cardiology
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Head&neck, Lymph Nodes ... Lymph node entirely ... Note the characteristic
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
Stimulated SA node ... AV node - Un-stimulated ... QRS #QRS #SA node ... #AV node #Bundle
Junctional Rhythms - Junctional rhythm describes an abnormal heart rhythm resulting from impulses coming from a
atrioventricular node ... #Cardiology #MedStudent
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
within the AV node ... HeartBlock #Diagnosis #Cardiology
Supraventricular Tachycardia Differential Diagnosis
Sinus Tachycardia
Sinus Node Re-entry Tachycardia
Unifocal Atrial Tachycardia
Junctional Tachycardia
Multifocal Atrial Tachycardia (MAT)

- EB Medicine
Tachycardia Sinus Node ... #causes #svt #cardiology
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
through the AV node ... period of the AV node ... #PACs #cardiology