MGTA02H3 Lecture Notes - Lecture 15: Diuretic, Autoimmune Disease, Adrenergic
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Types of cell signalling: four types of cell signalling (major, four types of hormones (major) Nervous system: neural networks / rapid signalling. Endocrine system: endocrine glands secrete hormones that mediate slower, but longer-lasting responses, endocrine system functions more as a regulatory than a command system. Secretes hormones that move through blood or extracellular fluid. Or very slow (e. g. changes in protein synthesis or gene transcription) Adrenal gland has two parts: outer cortex. The more cortisol you have, the more rapidly you age. Classic endocrine hormonal response: endocrine gland that contains cells which synthesize and secrete hormones, hormones diffuse through extracellular fluid and they circulate in the blood, move through blood to these target cells and activates their receptors. Hormones can also originate / move from nerves: referred to as neurohormones. Rather the cell of a gland producing and secreting hormones they have a nerve doing this function: from the nerve it is transported through extracellular fluid and blood.
