Chapter 15 Development-Redux Flashcards
Prosencephalon
Forebrain
Telencephalon
Cerebrum
Diencephalon
hypo-, epi-, thalamus
Mesencephalon
Midbrain (corpora quadrigemina)
Rhombencephalon
Hindbrain
Metencephalon
cerebellum, pons
Myelencephalon
medulla oblongata
lateral ventricles
telencephalon
3rd ventricle
diencephalon
4th ventricle
metencephalon & myelencephalon
Ventricles separated by…
septum pellucidum
Deeper grooves between lobes/regions
fissures
Corpus callosum
connects the two hemispheres
Right hemisphere
sensory information, spatial relationships (creative)
Left hemisphere
language, reading, writing, speaking, logic (goal-orientated)
Prefrontal cortex
emotion, motivation, behavioral regulation, sense of time, reasoning
Speech center
Broca’s area (frontal)
- breathing/vocalization
- left side 97% of time
pre-central gyrus
primary motor cortex
central sulcus
between motor and sensory cortexes
post-central gyrus
primary sensory cortex
temporal lobe
auditory cortex
occipital lobe
visual cortex
Broadman’s areas
47 functional regions
Alzheimers Disease
- genetic mutations +/- environmental factors
- decrease in neurons in frontal lobes
- large sulci
Senility
- deterioration of organizational/focus tasks
- memory loss
chamber in diencephalon
third ventricle
Epithalamus
pineal gland secretes melatonin
Thalamus
relay/processing center for sensory info
Hypothalamus
- thirst, appetite, body temp
- coordinates ANS
- coordinates endocrine system
- sensory & motor commands related to emotion
pituitary gland
- beneath hypothalamus
- suspended by infundibulum
- supported within sella turcica
Corpora Quadrigemina
integrates visual/auditory data
superior colliculi
vision
inferior colliculi
hearing
red nucleus
maintains muscle tone & posture
Substantia nigra
neurotransmitter dopamine
-decrease causes increased muscle tone
Parkinson’s disease
tremors in muscles
Cerebral peduncles
support the cerebrum
Cerebellum
- coordinates muscles
- subconscious and repetitive movements
- folia and sulci
Purkinje cells
highly branched cells in cortex
Cerebellar peduncles
links cerebellum to brainstem
Pons
- CN’s V, VI, VII, VIII
- respiratory center
- sleep paralysis
Medulla Oblongata
- brain to spinal cord
- CN’s VIII, IX, X, XI, XII
- autonomic centers for visceral functions
Limbic system
behavior & emotional states: thirst, hunger, sex
-learning & long-term memory
CN’s I, II, VII, IX, X
Synesthesia
- hereditary neurological condition
- common among artist and poets
- cross-wiring
Result of synesthesia
- letters/numbers interpreted as colors
- sounds can be seen, shapes have taste
Diaphragma sellae
encloses the pituitary gland
Dural sinuses
- delamination of dura mater
- cavity for venous blood
CSF
- transports nutrients and removes waste products
- cushion