CNS consists of brain and spinal cord as main components. Brain contains 100 million neurons, consuming 20% of body's energy. Brain divided into four lobes: temporal, occipital, parietal, and frontal
CNS consists of brain and spinal cord. Brain controls awareness, movements, sensations, thoughts, speech and memory. Spinal cord connects to brainstem and runs through spinal canal. Cerebrospinal fluid surrounds brain and spinal cord
Twelve thoracic vertebrae (T1-T12) located between cervical and lumbar vertebrae. Each vertebra has corresponding pair of ribs attached. Vertebrae increase in size as they descend towards lumbar level
Meninges are three protective membranes surrounding brain and spinal cord. Cranial and spinal meninges are continuous with same three layers. Meninges protect, support blood vessels and form CSF circulation
The CNS consists of the brain and spinal cord. The brain contains approximately 100 billion neurons and 1,000 billion glial cells. The brain is divided into four lobes: temporal, parietal, occipital, and frontal
Neural tube forms from ectoderm's neuroectoderm during embryonic development. Neural tube develops into brain (anterior) and spinal cord (posterior). Three primary vesicles form: prosencephalon, mesencephalon, and rhombencephalon. Secondary vesicles differentiate into five major brain regions