22 results
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
However, in UMN ... hyporeflexia without sensory ... cause very different ... This lesion causes ... positive Babinski reflex
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... Weakness with Sensory ... Compression: • Carpal ... #Neurology #Differential ... Diagnosis #Algorithm #Causes
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Pupil - Relative Afferent ... pupillary light reflex ... impaired (loss of sensory ... Optic nerve* (main cause ... #Defect #RAPD #neurology
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
There are many different ... causes of Facial ... the commonest cause ... Loss of Corneal Reflex ... #Bells #Palsy #Neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
this specific case ... acts both as an afferent ... and efferent pathway ... Hoffmanns #Sign #Reflex ... clinical #video #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... Increased Jaw Jerk reflex ... Escorial criteria uses ... evidence of both UMN ... Lateral #Sclerosis #neurology
Vagus Nerve Schwannoma eliciting paroxysmal cough when palpated

The cough reflex is caused by stimulation of vagal
palpated The cough reflex ... is caused by stimulation ... of vagal nerve afferents ... clinical #video #neurology ... #reflex
Median Nerve Anatomy and Function
The Median nerve is the nerve of pre-axial hand function; pinch, delicate
it is not all carpal ... • Carpal tunnel ... and thumb do not flex ... exam to carpal ... Anatomy #diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... Erb's Palsy is caused ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology ... #sensory #motor
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
and Myotomes Reflexes ... Commonly caused ... Narrowing of spinal canal ... Myotomes #diagnosis #neurology ... #sensory #motor