Other Systems Flashcards
The ans integrates functions with
Limbjc system
Hypothalamus
Reticular formation
Endocrine system
The ans integrates and functions with limbic system
Emotion- amygdala(perceive/modulate/ anger and fear)
Reticular formation
In brainstem cluster of cell bodies
Maintain consciousness, arousal, attention
Endocrine system
Glands that secrete for digestion, mood, sexual function
Why and intergrates and functions with other systems
- Links thinking brain to non thinking brain
- Regulates interval drives, moods, motivation, and visceral activities related to emotion
- unconsciously controls all visceral and somatic fixations related to keeping us alive
- heart, lungs, blood vessels, digestion, reproduction
Limbic system to prefrontal cortex
Decision making/inhibition
Link the thinking brain with emotional
Override emotional impulsive drives
Help mediate motivation
Limbic system to temporal lobes
Memory formation and storage
Limbic system to hypothalamus
Autonomic, hormonal responses
Trigger ANS functions
Exert control over endocrine system, appetite, sexuality
Hypo close to memory to ashes where or not in danger
Prefrontal- executive function
Consciousness decision making and run for your life
Hypo kick in what’s necessary
Hypothalamus controls activities of the ans
- sexual activity
- GI tract activity
- respiration, BP, pulse rate, temp, metabolism, food intake
- endocrine system via pituitary gland
Hypothalamus inputs
From reticular formation in the brainstem
From the amygdala in the limbic system
From the anterior cingulate and orbitofrontal PFC
Hypothalamus outputs
-limbic system hippocampus&amygdala
- anterior cingulate gyrus to PFC
- thalamus
- pituitary gland (endocrine)
Brainstem and reticular formation
- ANS preganglionjc neurons
Reticular formation structure
Collection of nuclei throughout brainstem
Midbrain, pons, medulla
Interconnected Circuitry
Axons extend longitudinally projecting to spinal cord, limbic system, BG, cortex
Reticular formation. Functions
Motor and sensory -inhibit, facilitate, modify, regulate cortical functions - integrate any/all sensory inputs with internal thoughts/emotions Maintain homeostasis Regulate sleep/wake Foster arosual Maintain respiration Engage ANS
Reticular Neurotransmitters
Serotonin- sleep/wake and depression
Norepinephrine- REM sleep, attention, alertness
Dopamine- Movement and motivation
Reticular formation coma
No voluntary activity No sleep wake cycles No arousal or alertness No awareness No volitinal response to environment
Reticular formation persistent vegetative state
Basic sleep wake cycles
Basic arousal
Minimal/inconsistent response to environment
Reticular formation minimally conscious state
Partial conscious state
Sleep wake cycles
Inconsistent volitional response to environment
Reticular formation locked in syndrome
Preserved awareness, sleep wake cycles, consciousness
Unable to move or respond with exception of eye blinks
Hypothalamus stimulates not only the ANS but also
Endocrine system
Endocrine system
Comprised of a group of glands
Relapse hormones direct into the blood stream
Exert control over bodily fix too a
When stimulated by ANS
Endocrine system hormones
Chemicals released by secretion of a gland
Endocrine system hormonal influences
Work much note slowly than the neural synaptic functions of the somatic system
May take hours to weeks to engage
Effects may persists for hours to weeks
Hypothalamus and endocrine problems
Disruptions in:
Endocrine system
Thyroid functions- metabolism, appetite, weight
Growth patterns- dwarfism, gigantism
Reproductive capacity- menstruation, sperm, Ova
Food water intake
Emotional regulation
