The Nervous System Flashcards
what are the 5 directions in anatomy?
lateral view anterior view sagittal plate coronal plate transverse plane
what are the two main branches of the human nervous system?
central and peripheral
what is the CNS?
brain and spinal chord
what is the PNS?
nerves outside of the CNS
what are the two brances within the PNS?
autonomic and somatic
what is the autonomic nervous system?
interaction with ‘internal environment’
sympatheitc and parasympathitic
what is the somatic nervous system?
interaction with external environments
two stages in brain development?
CNS begins as hollow neural tube with a fluid filled internal cavity,
the ‘head’ part expands to form three priamry brain vesicles
what are the three primary brain vesicles?
fore, mid and hind brain
what are the two regions of brain that have additional grey matter?
cerebral and cerebellar cortex
what are the two anatomical views
lateral and anterior
what directions does sagittal plate have
d-v
interioir-superior
what directions does coroanl plane have
righ-left
interioir-superior
what directions does transverse plane have
dorsal-ventral
right-left
what are the 4 regions on spinal chord
cervical
thoracic
lumbar
sacral
what are components of brain stem
midbrain, pons and medulla
what is telencephalon
part of cerebrum
what is metancephalon
part of cerebellum
what is diencephalum
part of thalamus and hypothalamus
what is miencephalon
part of midbrain
what is metencephalon
pons
what is cell theory
all living organisms composed of one or more cells
what are cells
basic unit of life
who said cell thoery
matthias schleidan adn thedor schwann
what is reticular theory
nervous sytem made of single interlinking netweorks
what is neuron doctrine
nervous system made from discrete individual cells
what maintains concentration gradients?
high energy consumption
what are two types of neurons that act as myelin sheaths
schwann in pns
oligodendrocytes in cns
