BIO 311D Exam 3 TA Notes

BIO 311D Exam 3 TA Notes - Endocrine System...

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Nervous-electrical Endocrine-chemical Hormone (peptide/protein, amino and steroid/lipid) secreted in one location>transported>effect in another location. A. Exocrine glands-outside body or into digestive tract-enzymes B. Endocrine glands-secreted into the blood-hormones Hormone Origins Hypothalamus pituitary complex=hypothalamus + pituitary (anterior and posterior) Pancreas Gonads Location Hormone Effect Anterior pituitary Thyroid stimulating hormone (TSH)- glycoprotein Stimulates the release of thyroid hormones Anterior pituitary Follicle-stimulating hormone (FSH)- glycoprotein Female>estrogen secretion and egg maturation Male>stimulates sperm production Anterior pituitary Growth hormone (GH)-protein Stimulate growth Posterior pituitary Antidiuretic Hormone (ADH)-peptide Stimulates re-absorption of water in kidneys Posterior pituitary Oxytocin-peptide Stimulates uterine contractions and milk secretion (only for females) Pancreas Insulin-protein Lowers blood sugar level by stimulating absorption Pancreas Glucagon-protein Raises blood sugar level by stimulating secretion of stored glucose into bloodstream. Gonads (testes and ovaries) Sex hormones (androgens, estrogens, and progestins)-steroid Development of primary and secondary sex characteristics (ovaries and testes; muscle mass and dropping of the voice) Eat>food digested>into glucose>blood stream (high blood sugar=lots glucose in blood stream)>secretes insulin>stimulates absorption of glucose>store in liver as glycogen (negative feedback) Don’t eat>low blood sugar>glucagon>stimulates glycogen release into blood from liver>raise blood sugar level. Mosses and ferns-alternation of generations (diploid/haploid) Type of plants Bryophytes (moist habitat) Seedless Vascular Plants (Moist places) Vascular Plants Reproductive Str. Gametangia Archegonium (Megaspore) and Antheridium (Microspore) Stamens and Carpels Support Str Rhizoids Dichotomous branching Lignin Receptacle? Nutrients Sent by
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BIO 311D Exam 3 TA Notes - Endocrine System...

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