PNS Anatomy Revision Flashcards
what are the two main types of neurone
- multipolar
- unipolar
where is the cell body of multipolar neurone
CNS
where is the cell body of unipolar neurone
PNS
nerve vs tract
same thing but tract is in the CNS, nerve in PNS
do ‘tracts’ tend to consist of single or mixed modality
single
do most nerves tend to consist of single or mixed modality
mixed
how many thoracic vertebrae are there
12
in C1-C7, is the nerve above or below the vertebrae
above
is T6 nerve above or below T6 vertebrae
below
dermatome level of nipple
T4
dermatome level of umbilicus
T10
dermatome level of posterior scalp, neck and shoulder
C2-C4
dermatome level of upper limb
C5-T1
which rami are involved in nerve plexuses, anterior or posterior
anterior
are sympathetic and parasympathetic types of sensory or motor innervation
motor
what are the 4 types of glial cells
- astrocytes
- oligodendrocytes
- microglia
- ependymal cells
which glial cells have numerous processes (star-shaped) and maintain the BBB and homeostasis
astrocytes
name the 2 types of astrocytes, and which matter each are found in
- fibrous (white matter)
- protoplasmic (grey matter)
which type of glial cells produce myelin sheath in the CNS
oligodendrocytes
ALL sensory axons pass from the spinal nerve into the ____ root then into the ____ rootlets then into the ____ horn of the spinal cord
posterior
ALL motor axons pass from the ____ horn of the spinal cord into the ____ rootlets then into the _____ root then into the spinal nerve
anterior
which type of glial cells are antigen presenting/phagocytic cells
microglia
what type of glial cells line the ventricles of the brain
ependymal cells
difference between a nucleus and a ganglion
a collection of nerve cell bodies in the:
- CNS (nucleus)
- PNS (ganglion)
