49 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Adduction - C6, C7 ... Extension C6, C7 ... Reflexes: • Triceps ... • Biceps Jerk - ... Triceps power is
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Ankle - S1 • Biceps ... - C5, C6 • Triceps ... - C6, C7, C8
Cranial Nerve Nuclei - Cross Sectional Anatomy
CN III - Oculomotor Nerve
CN IV - Trochlear Nerve
CN V
Sectional Anatomy CN ... Trochlear Nerve CN ... Abducens Nerve CN ... VII - Facial Nerve ... Nerve CN IX -
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Elbow Flexion Biceps ... Brachioradialis Reflex C7 ... Elbow Extension Triceps
Spider Bites - Black Widow vs Brown Recluse
BLACK WIDOW 
 - Yellow/Red Hourglass on belly
Spider Bites - Black ... muscle cramping and CNS ... No #Spider #Bites
Types of Facial Paralysis - Peripheral vs Central Lesions

Facial weakness or paralysis may result either from
peripheral lesion of CN ... VII, the facial ... peripheral lesion of CN ... VII, exemplified ... #CNVII #CN7 #Peripheral
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
Differential Diagnosis Algorithm ... Lymphadenopathy, CNS ... - T-cell - CD7 ... Differential #Diagnosis #Algorithm
Chronic Neutrophilic Leukemia (CNL)

 • Signaling Pathway
 • WHO Dx Critera
 • Risk Stratification
 • Treatment
Neutrophilic Leukemia (CNL ... • Treatment Algorithm ... @ZhuoerXie #CNL
Relapsing Acute Severe Ulcerative Colitis - Management Algorithm
Loss of Response:
 • (Re)consult Colorectal Surgery
 • Assess
Colitis - Management Algorithm ... COVID) • TDM: IFX/CNl ... Optimize Nutrition • CNI ... PJP Prophylaxis Algorithm ... UC #Management #Algorithm
Pruritus - Primary Skin Lesion - Differential Diagnosis Algorithm
Macules / Papules / Plaques:
 • Xerosis (dry
Differential Diagnosis Algorithm ... • Arthropod bites ... Differential #Diagnosis #Algorithm