the spinal cord Flashcards
what is the spinal cord surrounded by?
bone
what is meninges
3 layers of connective tissue
additional protection
what is the outer layer of the spinal cord called?
dura mater
what is the middle layer of the spinal cord called?
arachnoid mater
what is the inner layer of the spinal cord called?
pia mater
where does the spinal cord meninges lead to
its continuous with the brain meninges
what is the epidural space filled with?
fat and C.T.
where is the epidural space
lies between dura mater and vertebral column
what is the arachnoid mater like?
web-like arrangement of collagen and elastic fibres
what is the pia mater made of
transparent layer of collagen and elastic fibres
which layer of the spinal cord contains blood vessels
the pia mater layer
inner layer
how long is the spinal cord
ranges from 42-45cm
what nerves form the cauda equina
nerves from the lumbar, sacral and coccygeal regions
what is anterior
somatic motor neurons
what is posterior
sensory neurons
somatic & autonomic