Bio/neuro
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Broca’s area
Speech production Left frontal lobe
Wernicke’s area
Understanding speech Temporal lobe
Telencephalon
Er i forebrain. Indeholder: Cortex, Limbic system, Basal ganglia
Diencephalon
Er i forebrain. Indeholder: Thalamus og hypothalamus
Metencephalon
Er i hindbrain. Indeholder: pons og cerebellum
Mesencephalon
Midbrain
Medulla
• Er i hindbrain. • Markerer overgangen fra hjernen til spinalcord • Livsvigtig - regulate breathing and heart rate
Brainstem (Hjernestammen)
Består af midbrain, pons, and medulla
Stress hormones
Epinephrine / ADRENALINE (adrenal medulla (core of the adrenal gland) secretes the adrenaline) CORTISOL (adrenal cortex (yderste del af adrenal gland) secretes the cortisol) - stress dæmpende i rette mængder, men stress fremkaldende i overdreven mængde over lang tid
tropic hormone
udløser noget et andet sted - affects the secretion of other endocrine glands
Når vi oplever stress, så frigiver Hypothalamus
Corticotropin-releasing hormone (CRH)
CT (Brain imaging technique)
STRUCTURAL X Ray pictures, non invasive
MRI (Brain imaging technique)
STRUCTURAL Uses Magnetic fields and radio waves - magnetic field align hydrogen atoms and then radiowaves are send to disrupt this alignment. When the waves stops the atoms realign and the atoms send out radio frequencies that are detected
DTI (Brain imaging technique)
STRUCTURAL modificeret MRI (FA ~ vand langs axons)
EEG (Brain imaging technique)
FUNCTIONAL • Elektroder på hovedet • detect electrical waves • god ift. søvn og epilepsi
PET (Brain imaging technique)
FUNCTIONAL • Patient is injected w. Radio active substans into the blood, så man kan se: which areas of the Brain is most active
FMRI (Brain imaging technique)
FUNCTIONAL Som MRI - magnetic field and radiowaves, men kigger på blood changes BOLD
Hormoner - definition
Hormones are chemicals secreted by endocrine glands into the bloodstream and are taken up by receptor molecules in target cells
Endocrine glands
Kirtler hvor hormoner kommer fra (de er inde i kroppen) (Exocrine glands - kirtler hvorfra ting forlader kroppen)
Endocrine Feedback system
The endocrine system helps control the balance of the hormones in the blood stream
Hormones - 3 categories
1) Peptide hormones 2) Amine hormones 3) Steroid hormones
Steroid hormones
En af de tre hormon kategorier Pass through membrane and bind to receptor molecule inside the cell Fx testosteron og østrogen Lavet af fedt
Peptide hormone
En af de tre hormon kategorier Bind to receptor molecule at the surface of the target cell membrane and active second Messenger molecules inside the cell Lavet af aminosyre Fx insulin Lange strukturer (perlekæde)
Amine hormones
En af de tre hormon kategorier Bind to receptor molecule at the surface of the target cell membrane and active second Messenger molecules inside the cell Lavet af aminosyre Fx adrenalin / epinephrine