Endocrine system Flashcards
Population variation in set point
Each individual will have a normal range within which their levels of a given variable fluctuate
Synaptic (neural)
Action potentials in axons and neurotransmitter release a synapse
Endocrine (hormonal)
Hormones released into the blood
How is endocrine communication transmitted?
Through the bloodstream
How is synaptic communication transmitted?
Across synapses
Chemical signals of endocrine communication
Hormones
Chemical signals of synaptic communication
Neurotransmitters
Distribution of effects for endocrine communication
Target cells are mainly in other distant tissues and organs and must have appropriate receptors
Distribution of effects for synaptic communication
Limited to very specific area; target cells must have appropriate receptors
Major endocrine glands
- Hypothalamus
- Pituitary gland
- Thyroid gland
- Adrenal glands
- Pancreas
- Pineal gland
- Parathyroid gland
- Organs with secondary endocrine functions (heart, thymus)
What links the nervous system to endocrine system?
Hypothalamus
Physical variables are maintained homeostatically through hormones?
- Blood sugar concentration
- Growth and repair
- Basal metabolic rate
- Blood calcium concentration
