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edocrine glands/func

QuestionAnswer
Hormones Chemical messengers Specific effects on certain cells/organs
Target tissue Specific tissue acted upon
Target cells make up target tissue
Receptors receives hormone to cell.
Amino acid compounds proteins and related compounds make up all hormones except adrenal cortex and sex glands
Lipids Made from fatty acids
Steroids Lipids derived from cholesterol
Steroids produced in adrenal cortex and sex glands
Prostaglandins group of local hormones made by most body tissue. Variety of functions not yet understood
negative feedback inhibits hormone secretion
positive feedback stimulates hormone secretion
Regulation of adrenal cortex 24 hr. cycle. Increase upon rising, decrease at bedtime
regulation of female sex hormones Monthly cycle
Regulation of male hormones 24 hr. cycle peaks in AM
Pituitary Gland MASTER GLAND small gland size of cherry. Has two lobes
Infundibulum a stalk that connects pituitary gland to hypothalamus.
Posterior lobe pituitary. hormones produced in hypothalamus and Stored here until nerve impulses cause release
Anterior lobe pituitary. doesn't release hormones until chemical message arrives from hypothalamus
Portal system RH travel from Hypothalamus to anterior Lobe through this system SPECIAL CIRCULATORY PATHWAY
thymus Gland secretes thymosin. Mass of lymphoid tissue, develops immunity
Sex Glands needed for reproduction and development of secondary sex characteristics
pancreas Insulin is produced here
Islet small group of specialized cells in pancreas.
Adrenal Gland located atop kidneys
Adrenal Cortex Outter portion of adrenal. contains cortisol, aldosterone, sex hormones
Adrenal Medulla inner area of adrenal gland. hormones released in response to sympathetic nervous system.
Parathyroid Glands Four tiny glands embedded in thyroid
Thyroid gland Largest endocrine gland. Requires iodine to produce hormones.
Isthmus narrow band connecting two lobes of thyroid
pineal gland Small cone shaped, small mid-brain. Secretes Melstonin.
Stomach Gastrion and pepsin. Stimulates digestive activity
Kidneys erythropoietin. RBC production
Heart (atreal) ANP Lowers BP cause loss of sodium in kidneys
Placenta HCG. Maintains pregnancy breasts for lactation
Prostaglandins produced by most body cells. Variety of functions not yet understood
Created by: 100000650880670
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