Term
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Definition
- Hormone secreting organs
- Ductless
- Secrete chemical messengers directly into body fluids
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Term
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Definition
- Secrete chemicals (sweat, mucus, digestive enzymes)
- Into ducts
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Term
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Definition
- Specialized nerve cells that secrete hormones
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Term
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Definition
- Local regulator with multiple functions
- Secreted by neurons as a neurotransmitter
- Secreted by white blood cells
- Makes adjacent smooth muscels relax
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Term
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Definition
- Peptides and proteinsthat function as local regulators
- Must be present in the extracellular environment for cells to grow, divide, and develop normally
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Term
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Definition
- Modified fatty acids, from lipids of the plasma membrane
- Local regulators affecting nearby cells
- Mainly Female Reproductive system
- Also as defense mechanism
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Term
| Signal transduction pathways |
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Definition
- Convert extracellular chemical signal to a specific intracellular response, thereby changing the behavior of the target cells
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Term
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Definition
- Hormones that have other endocrine glands as their targets and are importnat in understanding chemical coordination
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Term
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Definition
- Important role in integrating the vertebrate endocrine and nervous systems
- Receives information from nerves and then initiates endocrine signals
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Term
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Definition
- Consists of endocrine cells that synthesize and secrete several hormones idrectly into the blood
- Hypothalamu
- Releasing hormones - make anterior pituitary secrete hormones
- Inhibiting hormones - make anterior pituitary stop secreting hormones
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Term
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Definition
- Extension of the brain
- Stores and secretes two hormones made by hypothalamus
- Oxytocin
- Induces contraction of the uterine musclees during childbirth and mammary glands.
- Antidiuretic hormone
- Regulate osmolarity of blood (negative feedback)
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Term
| Anterior Pituitary Hormones |
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Definition
- Thyroid stimulating hormone - regulates release of thyroid hormones
- Adrenocoricotropic hormone - controls adrenal cortex
- Follical stimulating hormone and luteinizing hormone govern reporduction by acting on gonads
- Growth hormone, prolactin, melanocyte stimulating hormone and enorphines
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Term
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Definition
- Protein consisting of almost 200 amino acids, affects many tissues
- Promotes growth directl, and stimulates the production of growth factors
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Term
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Definition
- Protein very similar to GH; could be encoded on same genes
- Diverse effects in different invertabrate species
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Term
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Definition
- Also produced by certain neurons in the brain
- Inhibit perception of pain
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Term
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Definition
- Secretes melatonin - modified amino acid
- related to light
- Secreted at night
- Link between a biological clock and activities
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Term
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Definition
- Two lobes on ventral surface of the trachea
- Key in development and maturation
- Key in homeostasis
- Thyroid hormones help maintain normal blood pressure, heart rate, muscle tone, digestion, and reproductive functions
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Term
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Definition
- Secreted by thyroid gland
- Lowers calcium levels
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Term
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Definition
- Located on surface of thyroid
- Secretes Parathyroid Hormone
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