brain parts & nerve cells (maybe short answer qs?) Flashcards
know the functions of brain parts and neuroglia inside and out
name all the different types of neuroglia (there are 6)
- astrocytes
- microglia
- oligodendrocytes
- ependymal cells
- satellite cells
- schwann cells
function of astrocytes
support and anchor neurons to surrounding capillaries
function of microglia
provide immune response to CNS
function of oligodendrocytes
provide myelin insulation to neurons in CNS
function of ependymal cells
secrete and circulate cerebrospinal fluid (CSF)
function of satellite cells
support and anchor neurons in PNS
function of schwann cells
provide myelin insulation to neurons in PNS
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function of frontal lobe
- voluntary movements
- reasoning + decision-making
- memory
- planning
- ability to predict consequences of actions
- verbal communication
function of parietal lobe
- controls sensations (pain, temperature, touch)
- visual-spatial processing
- body position
what separates the frontal and parietal lobes?
central sulcus (groove)
function of occipital lobe
visual processing (ex: vision and memory of objects)
function of temporal lobe
- memory
- word comprehension and pronunciation
- sense of smell and sound
- emotional association w/ memories
what separates the temporal and frontal lobes?
lateral sulcus (grooves)
what parts does the brain stem contain?
pons, medulla, midbrain
function of brainstem
controls breathing, blood pressure, heart rate, swallowing
function of cerebellum
manages balance, coordination and routine movement
describe the cerebrum’s appearance and give its function.
- largest part of brain; is divided into 2 parts
- controls thinking, reasoning and memory
- covered in ridges (gyri) and grooves (sulci)
function of thalamus
relays sensory impulses to cerebral cortex for processing and sorting
in relation to the thalamus, where is the pineal gland?
posterior to the thalamus.
give another name for the midbrain and its functions
- mesencephalon
- relays info to cerebrum
- controls body movements and posture
what is the pons made of? which two parts of the brain does it link together? give two functions.
- made almost completely out of white matter
- links cerebral cortex and cerebellum
- carries info from one side of the brain to another
- controls breathing
where is the medulla? name its two functions
- located directly above spinal cord
- transmits impulses between spinal cord and brain
- controls blood pressure, heart rate, swallowing
what is the spinal cord covered in for protection? what is its function?
- covered in meninges (just like the brain)
- relays impulses between brain and PNS