Neuroanatomy Draw It To Know It

General Organization 11

CENTRAL NERVOUS SYSTEM

PERIPHERAL NERVOUS SYSTEM

Upper motor neuron (UMN)

UMN injury LMN injury

Normal

Cranial nerve

Spinal nerve

Brain

Brainstem & Cerebellum

Spinal cord

Lower motor neuron (LMN)

UMN injury

White matter tract

LMN injury LMN fiber

UMN fiber

Muscle To n e

Muscle Stretch Reflexes

Pathologic Reflexes UMN

LMN

Hyperactive

Hypoactive

Spastic

Flaccid

Present

Absent

EXAM FINDINGS Injury Type

DRAWING 1-3 Divisions & Signs