Forebrain and receptors Flashcards
Epithalamus
pineal gland
secrets melatonin which appears to regulate the bodies inner clock
Epithalamus
choroid plexus
a network of capillaries. One of the primary functions is to produce cerebrospinal fluid (CSF) via the ependymal cells that line the ventricles of the brain.
Thalamus
Thalamus
2 oval masses centrally located in the center of the brain
Thalamus
what is the major function of the thalamus?
relay point and processing center for all sensory impulses going to the cerebral cortex
expect for smell
telencephalon (cerebrum)
describe the telecephalon
gray matter?
consists of an outer gray matter, cerbral cortex; and inner white matter (contains myleainted axons)
telencephalon (cerebrum)
raised/elevation
gyrus
telencephalon (cerebrum)
shallow groove
sulcus
telecephalon (cerebrum)
deep groove
fissure
Lobes (frontal)
what is the frontal lobe seperated from?
seprerated from parietal lobe by central sulcus
Lobes (frontal)
What does the frontal lobe contain?
(MSA, PMC)
1) motor speech area
2) primary motor cortex
Lobes (frontal)
motor speech area
controls the skelatal muscle movements necessary for vocalization (speech)
Lobes (frontal)
primary motor cortex
located in the precentral gyrus and controls the direction of movement
lobes (parietal)
where does the parital lobe end?
ends anteriorly at the central sulcus; lateral limit at the lateral sulcus; posterior limit at the parietaoccipitus
lobes (parietal)
what does the parietal lobe contain?
(PSSC, WA)
1) primary somatosensory cortex
2) wernicke’s area
lobes (parietal)
primary somatosensory cortex
recieves info from the skin, pain, pressure, temp, and touch + texture and shape. It is located in the past central gyrus of each parital lobe
lobes (parietal)
wernicke’s area
recognizing, understanding, and comphrending spoken and written language
lobes (temporal)
what does the temporal lobe contain?
(PAC, AAA)
1) primary auditory cortex
2) auditory association area
lobes (temporal)
primary auditory cortex
receives and processes auditory information
lobes (temporal)
auditory association area
interprets sounds and stores auditory memories
lobes (occipital)
what does the occipital lobe contain?
(PVC, VAA, I)
1) primary visual cortex
2) visual association area
3) insula
lobes (occipital)
primary visual cortex
recieves and processes incoming visual information
lobes (occipital)
visual association area
allows us to idenitfy things we see
lobes (occipital)
insula
deep to lateral sulcus; invloved with interpretation of tatse and memory (long term)
receptors
exterocepters
responds to stimuli from external envoirments
recpetors
unencapsulated recpetors
FNE, RHP, TD
- free nerve endings
- root hair plexus
- tactile discs
recpetors
free nerve endings
primary to pain and temp
recpetors
root hair plexus
detect hair movements
recpetors
tactile discs
light pressure recpetors
recpetors
encapsulated receptors
( EB, LC, BC, TC)
1) end bulb
2) lamellated corpuscle
3) bulbous corpuscle
4) tacticle corpuscle
recpetors
end bulb
light pressure, low frequency vibration
recpetors
lamellated corpuscle
deep pressure, high frequency vibrations
recpetors
bulbous corpuscle
deep pressure
recpetors
tactile corpuscle
light pressure
recpetors
visceroceptors
stretch receptors in smooth muscle of blood vessels and hollow organs
recpetors
proprioceptors
provides info about the muscle, joimt, and tendon position
