Mindmap

Homeostasis

Emily Johnson Englisch

Inhalt der Mindmap

Homeostasis

Homeostasis
- What is it
  - Maintenance internal milieu
  - Behavioral
  - energy distribution
    - neuroendocrine
  - autonomic control
    - Cardiovascular
    - respiratory output
    - thermogenesis
    - ANS vs. somatic motor
      - preganglionic
        ganglia
        effector NT
        Target organ
      - Autonomic
        Adrenal medulla
        ACh N Receptor
        Epinephrine
        Adrenergic rec
        Sympathetic
        ACh N Rec
        NE
        Adrenergic rec
        Cardiac
        smooth
        gland
        nerve term
        ACh
        Muscarinic rec
        sweat glands
        postgang neuron
        parasymp
        ACh N Rec
        ACh
        muscarinic rec
        Cardiac
        Smooth
        gland
        nerve terminals
      - Somatic
        NO GANGLIA
        ACh
        Nicotinic
        Skeletal
  - Fever/ inflammation
- mechanism
  - point
    - changes
      - regulatory system
        shut off
Temperature example
- Vasopressin axons
  - septal nuclei
  - preoptic area
    - pyrogens
    - blood temp
    - skin temp
    - caudal area
      - periph vasoconstriction
      - shivering
      - increase tissue metab
      - cool behavior
    - vasodilation
    - sweat/pant
    - antidiuresis
    - warm behavior
hypothalamus
- lateral
  - lateral tuberal
  - lateral hypothalamic area
  - supraoptic nucleus
- medial
  - dorsomedial hypothalamic nucleus
  - ventromedial hypothalamic nucleus
- periventricular
  - median eminence
  - arcuate nucleus
- fiber tracts
  - to hypo
    - Fornix
      - Hippocampal
    - stria terminalis
      - amygdala
    - retinohypothalamic
  - from hypo
    - mammillothalamic
      - anterior thalamic nuc
  - both
    - median forebrain bundle
      - to/from brainstem
Pituitary
- anterior
  - adenohypophysis
    - derived from oral mucosa
    - receives input from median eminance
      - neurons
  - parvocellular
  - ACTH
    - adrenal
      - corticosteroids
  - TSH
    - thyroid
      - thyroxine
  - GH
    - bones
      - growth
  - FSH
    - testes/ ovaries
      - testosterone
      - prog/est
  - LH
  - PRL
    - Ovaries/ breast
      - milk production
      - milk excretion
- posterior
  - neurohypophysis
  - magnocellular
  - oxytocin
  - vasopressin
pathways
- neuron
  - pituitary
    - secondary gland
      - end organ
      - adrenal/ thyroid/ gonadal
        three
    - prolactin/GH
      - two
  - vasopressin/ oxytocin
    - one
thirst
- renin release
  - angiotensin (ANGII)
    - Angiotensin receptors
      - vasoconstriction
        SFO
        Aldosterone
        drop in blood pressure
        volumetric
        hypovolemia
        OVLT
        Corticosterone
        heart rate increase
        DRINK
        osmometric
        sodium sensing
        vasopressin
  - kidney
Circumventricular organs
- SFO
- ME
- AP
- OVLT
- near venticles for fluid purposes
Stress response
- stimulus
  - sensory
    - higher brain
      - hypothalamus
        anterior pituitary
        adrenal cortex
        physiological response
        Brain
        increase
        protein deg
        lipid mobilization
        glyocogen synth
        liver
        decrease
        protein synth
        muscle
        glucose uptake
        adipose
        *anabolic*
        immune
        behavioral response
        feedback
        arousal
        fight/flight
        learning and memory
        glucocorticoid
        Feedback
        Fast
        non-genomic
        delayed
        genomic
        ACTH
        CRH
        PVN
- neuroendocrine
  - longer response latency
Neurotransmitter pathways
- Propanolol
  - migraines and anxiety
    - block NE
- Locus Coeruleus
  - blue body
  - more than 250,000 syn/ neur
  - stimuli
    - Attention
    - Arousal
    - Sleep/wake
    - L & M
  - Norepinephrine
- Raphe nuclei
  - 5-HT
  - Diffuse
    - innervates much of brain
  - Development
    - neurotrophic factor
  - Mood + emotion
  - sleep/wake
- Substantia Nigra/ VTA
  - DA
  - Striatum
    - locomotion
  - VTA
    - Mesocort/ limb
      - reward
- Basal forebrain
  - cholinergic
  - Arousal
  - Sleep/wake
  - L & M

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Beschreibung: Mindmap am Homeostasis, erstellt von Emily Johnson am 30/03/2019.
Erstellt von: Emily Johnson
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