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31 Cards in this Set
- Front
- Back
Functions of the adrenal cortex |
Secretes hormones made from cholesterol; called corticosteroids or corticosteroids. |
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Mineralcorticoids (ZG) |
From the zona glomerulosa (superficial layer) regulate Na+ and K+ balance. 1) Example: aldosterone **Regulate Na & K |
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Glucocorticoids (ZF) |
From the zona fasciculata (middle layer) regulate glucose metabolism. 1) example: cortisol |
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Adrenal androgens (ZR) |
From the zona reticularis are weak sex hormones that supplement those made in the gonads. Ex: DHEA |
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Zona glomerulosa (adrenal cortex) |
Most superficial layer= Mineral |
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Zona fasciculata (adrenal cortex) |
Middle layer=sugar |
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Zona reticularis (adrenal cortex) |
Deepest layer= Sex |
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Aldosterone |
⬆️ Na+ ⬆️ water = hypertonic solution i.e. blood pressure HTN (hypertension) |
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What is a aldosterone blocker? |
****ACE inhibitors = pril (ending) Na channel blockers |
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What is the job of cortisol? |
Regulating the glucose of the blood anti-inflammatory |
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Stress increases secretion of ____, which results in increased______release. |
ACTH ; glucocorticoids |
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What is the stress hormones? |
Glucocorticoids, epinephrine, and CRH. |
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General adaptation syndrome (GAS) |
1) good for papa recovery after stress such as an illness or trauma. 2) cortisol helps inhibit the immune system so it does not over respond. |
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Thyroid gland structure is located where and has how many lobes? |
1) located just below the larynx 2) has two lobes on either side of the trachea connected by the isthmus. |
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How does the body increase (TH) thyroid hormone |
Using negative feedback TH controls TRH =>TSH |
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Thyroid home (Pregnant mother w/ Thyroid issues) |
3-4 weeks The baby will also have issues and it will result in lower IQ for baby. Folic acid and TH medications |
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Parathyroid glands |
*despite location they have nothing to do with the thyroid *Secrete parathyroid hormone (PTH) *Hormone promotes rise in blood Ca+ by acting on Bones, kidneys, and intestines. Antogonist=> calcitonin |
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Diabetes mellitus type 1 (DMI) |
Not enough insulin Usually starts at a younger age Treatment: provide insulin |
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Pathway when there's a ⬇️ in blood Ca+ levels |
1. Detected by the parathyroid gland 2. Parathyroid hormone (PTH) is secreted into the bloodstream. 3. Target organs that respond to PTH, or its effects; • Osteoclast reabsorb bone tissue • Kidney retains CA and promotes activation of inactive form of vitamin d to calcitriol, an active form of vitamin d. • Small intestine increases absorption of more CA under the influence of calcitriol 4. Raising Ca+ release in blood inhibits PTH |
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Where is the pancreas located? |
Posterior to the stomach |
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Pancreas |
Endocrine and an exocrine gland (Mixed gland) |
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Endocrine cells (pancreas) |
Cells are located in pancreatic islets (islets of Langerhans) a. Alpha cells: glucagon b. Beta cells: insulin= ⬇️ glucose |
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Glucose channels / carriers |
Glucose transfer (GLUT4) |
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Diabetes mellitus 2 (DMII) |
Not enough receptors Usually starts at a later age Treatment: diet, insulin, medication |
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Pineal gland |
Secretes the hormone melatonin Part of the regulation of the circadian rhythms |
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Gastrointestinal tract (endocrine glands) |
Several hormones are made in the stomach and small intestine to regulate digestive process; includes Gastrin, secretin, cholecystokinin (Going into the blood but are regulating the function of the same system) |
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Gonads (endocrine glands) |
Produce testosterone, estrogen, and progesterone to regulate production of gametes and secondary sexual characteristics. |
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Placenta (endocrine glands) |
Produces human chorionic gonadotropin (HCG) and samatomammotropin to regulate pregnancy. |
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Autocrine vs paracrine signals |
Both are involved in short range signaling between neighboring cells within an organ |
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Autocrine signals |
The sender and receiver are the same cell type |
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Paracrine signals |
The sender and receiver are different cell types/tissues. |