A&P Exam 2
parts of the central nervous system
the brain and spinal cord
parts of the peripheral nervous system
nerves that connect the brain and spinal cord to the rest of the body
what's ganglia and where do you find them?
a collection of neuronal bodies found in the voluntary and autonomic branches of the PNS
what are tracts?
neural pathways that are located in the brain and spinal cord CNS
how is the nervous system organized and CNS and PNS?
the CNS is comprised of the brain, cerebellum, and spinal cord. Remaining neurons, and associated cells, distributed throughout the body form the PNS
parts of the brain
cerebrum, cerebellum and brainstem
parts of the brainstem
midbrain, pons, and medulla oblongata
diencephalon
part of the forebrain, containing the epithalamus, thalamus, hypothalamus and central thalamus
cerebellum
portion of the back of the head and controls balance for walking and standing, and other motor functions
what are the layers of the brain?
dura mater, arachnoid mater and pia mater
ventricles
2 lateral ventricles ( 1 in each cerebral hemisphere) third ventricle in the diencephalon and the fourth ventricle in the hindbrain
cerebrospinal fluid
made by tissues that line the ventricles (hollow space) in the brain. It flows in and around the brain and spinal cord to help cushion them from injury and provides nutrients
parts of the cerebrum
consist of two cerebral hemispheres the outer layer called the cortex (gray matter) and the inner layer (white matter).
There are four lobes in the cortex, the frontal(problem-solving, voluntary body movement, sentence formation, and personality), parietal, temporal, and occipital lobes (processes visual information takes place).
where is the cerebral cortex located? What does it contain and what does it do?
the outer layer that lies on top of the cerebrum that divides your brain into two halves (hemispheres) and contain bundle of nerve fibers called corpus callosum
how are the brain and spinal cord protected? Name the layers of the meninges and where we find the CSF- we find those same layers around the brain too
Meninges. Meninges are membranes that support and protect the brain and the spinal cord. A clear fluid called cerebrospinal fluid (CSF) travels in the spaces formed by the meninges.