13 results
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
pupillary light reflex ... impaired (loss of sensory ... ) Where: Optic nerve ... described the "pathologic ... #Defect #RAPD #neurology
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
Cord Injury by Nerve ... Levels Spinal Root Sensory ... Motor Reflex C4 ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
The median nerve ... Hoffmanns #Sign #Reflex ... #Positive #Abnormal ... clinical #video #neurology ... #PhysicalExam
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... threat Cranial Nerves ... brainstem Motor/Sensory ... caseyalbin #PhysicalExam ... #neurology #comatose
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
and Myotomes Reflexes ... damage to peroneal nerve ... Myotomes #diagnosis #neurology ... #sensory #motor ... #leg #physicalexam
Orbicularis Reflex in an Alzheimer's Patient on Physical Exam

Alzheimer's is a degenerative, progressive and irreversible disease.
Orbicularis Reflex ... examination is usually normal ... The nerves involved ... #PhysicalExam # ... clinical #video #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... to the radial nerve ... Myotomes #diagnosis #neurology ... #sensory #motor ... #arm #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... and/or genital sensory ... constipation Differential ... extremity weakness and sensory ... diagnosis #causes #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... injury • Gait is abnormal ... reflexes: Areflexia ... disorders #diagnosis #neurology ... #differential
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Spasticity - Reflexes ... Sjogren's • CSF: - Abnormal ... brain and/or optic nerve ... diagnosis #management #neurology ... #differential