Brain & Spinal cord

zoeleow5's version from 2015-09-15 13:35

Section 1

Question Answer
Cerebrospinal fluidCirculates in space b/w CNS and meninges; Provides cushioning, supports weight of CNS, transports nutrients, chemical messengers and waste products.
Blood brain barrierProtects brain from general circulation
AstrocyteInvolved in the physical structuring of the brain
Hypothalamus areaHormone diffusion
Capillaries around posterior pituitaryHormones diffusion
Pineal glandPineal secretion into circulation
Choroid plexus Capillaries are very permeable

Section 2

Question Answer
Frontal lobeResponsible for advanced decision-making processes; Retains emotional memories.
Temporal lobeRetains short and long-term memories; Processes sensory input like language comprehension, auditory info and naming; Produces speech.
Occipital lobeVisual processing centre
Parietal lobeIntegrates sensory information from parts of body, understands number and relations, and manipulates objects; Processes sense of touch; Left side is language and maths, right side is images.

Section 3

Question Answer
CerebrumConscious thought processes and intellectual functions; Memory storage; Conscious and subconscious regulation of skeletal muscle contractions.
CerebellumCoordinates complex somatic motor patterns; Adjusts output of other somatic motor enters in brain and spinal cord; Responsible for comparing info from cerebrum from the periphery through the spinal cord.
Diencephalon Thalamus relays and processing centres for all sensory info, except sense of smell; Hypothalamus controls emotions, autonomic functions, and hormone production.
MesencephalonProcesses visual and auditory data; Generates reflexive somatic motor responses; Maintains consciousness.
PonsRelays sensory info to cerebellum and thalamus
Medulla oblongataRelays sensory info to thalamus and other portions of brain stem; autonomic centre for regulation of visceral function.

Section 4

Question Answer
Limbic cortexCollection of structures involved in emotion, memory and behaviour; Facilitates memory storage and retrieval.
HypothalamusPrimary output for limbic system.
AmygdalaCoordinates behaviour, autonomic and endocrine responses; Links emotions and specific memories.
HipocampusRetrieves long term memories; Contributes to understanding spatial relations.

Section 5

Question Answer
Posterior median sulcusShallow groove that runs down centre of dorsal surface.
Anterior median fissureDeep groove that runs down ventral surface.
EnlargementsThickened regions of the spinal cord associated with control of the limbs.
Conus medullariesConical tip that terminates at filum terminae
Dorsal root gangliaSmall bulges near spinal cord; Contains cell bodies of sensory neutrons.
Dorsal rootsContains axons of sensory neurons; Transports sensory info to spinal cord.
Ventral rootsContains axons of motor neurone; Relays information to effectors.

Section 6