Subcortical levels of brain Flashcards
Name the Lower brain (subcortical) levels
1) Medulla and Pons 2 AND 3) Hypothalamus and limbic system 4) Thalamus 5) Basal nuclei 6) Amygdala 7) Hippocampus 8) Reticular formation 9) Cerebellum
Medulla and Pons
BP, HR and respiration control centers
Hypothalamus and limbic system
feeding, satiety, thermoreg., sexual response, reward and punishment, pleasure, anger and aggression, stress reactions
Thalamus
integration and relay center for sensory input
*HUGE filter; about 98% input filtered out
Basal nuclei
relay and modulation for voluntary movement
Amygdala
stress reactions, fear, trust
**oxytocin strongly affects! Makes you happy and get along with poeple better
Hippocampus
learning
- extremely important for learning and short-term memory
- stores and replays new events to categorize them for transfer to long term memory (imp. of sleep, exercise)
Reticular formation
arousal and wakefulness; CV, resp, swallow, vomt
*ALL PAIN ACTIVATES
Cerebellum
control of extrapyramidal motor system (brainstem tracts)
what are the two regions of hypothalamus?
lateral and medial
what does the lateral region of hypothalamus control?
hunger and thirst; reward, plessure. areas important for vasopressin, synthesis of temp. regulation, oxytocin
what are the e groups of the medial hypothalamus?
1) anterior nuclear group
2) tuberal nuclear group
3) posterior nuclear group
what is found in anterior nuclear group of medial hypothalamus?
1) preoptic nucleus
2) supraoptic nucleus
3) suprachiasmatic nucleus
4) anterior nuclei
5) paraventricular nucleus
what is found in tuberal nuclear group of medial hypothalamus?
1) dorsomedial and ventromedial nuclei
2) arcuate nucleus
what is found in posterior nuclear group of medial hypothalamus?
1) posterior nucleus
2) mammillary nuclei
