Chapter 13 pt 4 Flashcards
functional brain regions do what
integrate information from multipe association areas
prefrontal cortex is located in
promoter cortex( frontal lobe)
prefrontal cortex is responsible for
though judgment, personality, planning, and decision making.
prefrontal cortex is still developing in
adolescence
wenicke area is located in
left hemisphere
the wernicke area is typically involved in
language comprehension
cerebral lateralization
two sides of cerebrum exhibit differences in highjer order functions
categorical hemisphere is usually in the
left hemisphere
categorical hemisphere specializes in
language skills, functions in categorization and analysis
the categhorical hemisphere contains
wenickes area and motor speech area
representational hemisphere is usually the
right hemisphere
the representational hemisphere is usually concerened with
visuospatioal relationships, imagination, comparison of sense.
the two hemispheres communicate through commisures like
corpus callosum
lateralization dvelops in
early childhood (5-6)
lateralization differs between
sexes
womans posterior corpus callosum is
thicker (more connections)
males suffer more functional lose when
one hemisphere is damaged
lateralization is correlated wit
handedness
in right handers the left hemisphere is almost always
categorical and speech dominant
in left handed individuals they may have ______ hemisphere be categorical
either
diencephalon includes the
epithalamus, hypothalamus, and thalamus
epithalamas has 2 main structures
pineal gland and habenuler nuclei
pineal gland is a gland that produces
melatonin
melatonin helps regulate our
circadium rhythm
pineal gland uses endocrine gland to secrete
melatonin
pineal gland is the main structure for the
epithalamus
Thalamus has a number of different
thalamic nuclei
nuclei means
neuron cell body clustered together
thalamus main purpose is to
receieve signals from all concious senses except for olfaction
only sense that doesnt go through thalamus is sense of
smell
hypothalamus produces
hormons
the hypothalamus is connected to
pituitary gland through stalk called infundibulum
hypothalamus regulates
homeostasis
the hypothalamus controls the
automatic nervous system, endocrine system, regulation of body temperature
automatic nervous system controls
heart arte, blood pressure, digestive abilites, resperation
the hypothalamus control endocrine system by
secreting hormons that control activities in anterior pituitary gland. and producing antidiuretic hormone and oxytocin
the hypothalamus control body temp by
detecting altered temp in preoptic area
then signaling other hypothalamic nuclei to heat or cool the body
other functions of the hypothalamus
food intake, water intake, sleep wake rythms, emotional behavior
food intake is affected by the thalamus through
ventromedial nucelus that monitor nutrient levels and regulates hunger
water intake is affected by the thalamus through
anterior nucelus that monitors concentration of dissolved ubstances in blood. regulates thirst
sleep-wake rythms is affected by the thalamus through
superchiasmatic nucleus directs pineal gland to secrete melatonin. regulates circadian rythm.
emotional behavior is affected by the thalamus through
part of limbic system; controls emotional response.
hypothalamus can affect what gland
pineal gland
brain stem is comprise of
pons, midbrain, medulla oblongata
brainstem cntains ascending and descending
tracts
the brainstem connects
cerebrum, diencephalon, and cerebrum to spinal cord
components of midbrain
cerebral peduncles, superior cerebellar peduncles, medial lemniscus, substantia nigra
the cerebral peduncles are
motor tracts on anterolateral surface of midbrain
the cerebral peduncles carry
voluntary motor commans from primary motor cortex
the superior cerebellsr peduncles connects
cerebellum to midbrain
the medial lemniscus
myelenated acons running through brainstem
substantia nigra
cluster of cells with black appearence due to melanin
the substantia nigra gets is black color due to
melanin
what houses neurons that produce dopamine
substantia nigra
substantia nigra is involved in
movement, emotions, pleasure, and pain response.
degeneration of substantia nigra causes
parkinsons disease
