Cerebral spinal fluid
cerebrospinal fluid
the cerebrospinal fluid and the meninges protects the CNS(central nervous system)
connective
You're referring to the blood-brain barrier.
axons
Functional types of neurons: 1. sensory (afferent) neurons - input to CNS from sensory receptors; dendrites located at receptors, axons in nerves, cell bodies in ganglia outside the CNS 2. motor (efferent) neurons - output from CNS to effectors cell bodies and dendrites located in the CNS, axons in nerves 3. interneurons - communicate and integrate information within the CNS; located entirely within the CNS
the cerebrospinal fluid and the meninges protects the CNS(central nervous system)
amniotic sac
connective
sea otter
its a koala
sea otter
Sounds like a porcupine.
sea otter
cerebral spinal fluid cushions, protects and nourishes the brain and spinal cord.
The hedgehog and the porcupine, are two animals that have protective quills.
You're referring to the blood-brain barrier.
Ependymal cells are cells that line the central cavities of the brain and spinal cord. They are ciliated and act as a semi-permeable lining between the cavities and normal tissue. The cavities are filled with a cerebro-spinal fluid which cushions the CNS and, due to the beating cilia of the ependymal cells, is constantly circulating.