Principles of Neuroanatomy Flashcards
What is the coronal plane?
Plane that divides anterior from posterior
What is sagittal or median plane?
Plane that is medial to show 2 lateral parts
What is transverse or horizontal plane?
Plane that divides superior from inferior
What is meant by medial?
Closer to middle
What is meant by lateral?
Closer to sides
What is meant by dorsal?
Refers to back
What is meant by ventral?
Refers to the front or abdominal region
How do dorsal + ventral differ between brain + spinal chord? Why?
Axis shifts for brain because humans walk upright:
Dorsal = superior portion of brain
Ventral = inferior portion of brain
What is meant by rostral?
Towards the nose
What is meant by caudal?
Towards the tail
How do rostral + caudal differ between brain + spinal chord? Why?
Axis shifts for brain because humans walk upright:
Dorsal = anterior portion of brain
Ventral = posterior portion of brain
What are the 2 subdivisions of the nervous system?
→ central
→ peripheral
What does the CNS consist of?
Brain + spinal chord
→ contains majority of nerve cell bodies + synaptic connections
What does the PNS consist of?
All of the nerve fibres that originate from the CNS
→ is the link between CNS and periphery of the body
What are the subdivisions of the PNS?
→ somatic
→ autonomic