Neuroanatomy Flashcards
how many pairs of spinal nerves are there?
31
4 types of glial cells
astrocytes
oligodendrocytes
microglia
ependymal cells
microglia - what is the nucleus like in active stage (infection) vs resting stage?
active - rounded nucleus
resting - elongated nucleus
what is the corpus callosum and what is its function?
a thick bundle of nerve fibres that connects the two cerebral hemispheres, allowing them to communicate.
It is also involved in movement control, cognitive functions, and vision
what does the thalamus do?
it is the body’s information relay station.
All information from your body’s senses (except smell) must be processed through your thalamus before being sent to your brain’s cerebral cortex for interpretation.
Your thalamus also plays a role in sleep, wakefulness, consciousness, learning and memory.
what is the lentiform nucleus?
a lens-shaped, bilateral structure in the basal ganglia
parts of it:
-the internal and external globus pallidus
-the putamen
where are the cingulate gyrus and cingulate sulcus?
they are medial and lie immediately above the corpus callosum
what is the cingulate gyrus and what does it do
An important part of the limbic system, the cingulate gyrus helps regulate emotions and pain
what is the pineal gland and what does it secrete?
a tiny endocrine gland in the middle of your brain that helps regulate your body’s circadian rhythm by secreting the hormone melatonin
what does subarachnoid space contain?
CSF
Blood from the brain drains into a system of dural venous sinuses. The dural venous sinuses drain into the ________ ________ vein
internal jugular
in the CNS, which are more numerous - neurons or glial cells
glial cells
microglia - resting stage of the cell
elongated nucleus, short spiny cell processes
microglia - active stage of the cell (infection)
rounded nucleus, similar structure to macrophage
what is the pineal gland
a tiny endocrine gland in the middle of your brain that helps regulate your body’s circadian rhythm by secreting the hormone melatonin.
