Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Water-soluble hormones |
All amino acid-based hormones except thyroid hormone, act in receptors in plasma membrane Ex: glycoproteins, catecholamines, and peptide hormones composed of polypeptides |
|
|
Lipid-soluble hormones |
Steroid and thyroid hormones, act on receptors inside cell |
|
|
Functions of Endocrine System |
Reproduction, growth and development, maintence of electrolytes, water and nutrient balance of the blood, regulation of cellular metabolism and energy balance, and mobilization of body defences |
|
|
Permissiveness |
Situation where one hormone can not exert its function without help from another hormone |
|
|
Synergism |
When more than one hormone produces the same effects at the target cell and their combined effects are amplified |
|
|
Antagonism |
When one hormone opposes the action of another |
|
|
Growth hormone (anterior pituitary hormones) |
Hyposecretion- dwarfism Hypersecretion- gigantism |
|
|
Thyroid-stimulating hormone (anterior pituitary hormones) |
Hyposecretion- cretinism in kids, myxedema in adults Hypersecretion- hyperthyroidism |
|
|
Adrenocorticotropic hormone (anterior pituitary hormones) |
Hyposecretion- rare Hypersecretion- Cushing disease |
|
|
Follicle-stimulating hormone (anterior pituitary hormones) |
Hyposecretion- failure if sexual maturation Hypersecretion- no important side effects Same for luteinizing hormone |
|
|
Prolactin (anterior pituitary hormones) |
Hyposecretion- poor milk production Hypersecretion- inappropriate milk production |
|
|
Oxytocin |
Strong stimulant of uterine contraction, childbirth, triggers milk ejection, cuddling hormone |
|
|
Antidiuretic hormone |
Prevents wide swings in water balance, helps avoid dehydration and water overload, |
|
|
Thyroid hormone (components) |
T4- thyroxine, secreted by thyroid follicles, has four bind iodine atoms T3- triiodothyronine, target tissue, made from T4, has three bind iodine atoms |
|
|
Thyroid hormone (function) |
Increasing basal metabolic rate and body heat production, regulating tissue growth and development, and maintaining blood pressure |
|
|
Calcitonin |
Inhibits bone resorption and release of Ca+ from bone matrix, stimulates Ca+ uptake and incorporation into bone matrix |
|
|
Pineal gland |
Melatonin- sleeping hormone |
|
|
Norepinephrine |
Great influence on peripheral vasoconstriction and blood pressure |
|
|
Epinephrine |
Stimulator of metabolic activities and bronchial dilation |
|
|
Parathyroid hormone |
Controls calcium balance in the blood |
