BSC 2011 Lecture 10: Animals lecture 10

24 views5 pages

Document Summary

Endocrine control: slow hormones must travel to the target in the blood, may last a long time in the blood, and often alter gene transcription, broadcast all cells are potentially exposed to a hormone, endocrine system controls prolonged activities. Exocrine glands-cells secrete substances into a duct or a body cavity (mammary glands, salivary glands) Endocrine cells-secrete substances into blood: cells may be dispersed in other tissues, or aggregated to form a gland. Neurosecretory cells (neuroendocrine cells: resemble neurons they are excitable cells that propagate action potentials. Cell bodies are in the cns; the axon terminals release hormones, often within neurohemal organs. Provide direct interface between nervous and endocrine systems. Non-neural endocrine cells (epithelial endocrine cells: not excitable, typically stimulated to secrete hormone by other hormones, ex. anterior pituitary gland, thyroid gland. 3 groups of hormones: peptide and protein hormones. Water soluble and easily transported in blood. Packaged in vesicles and released to blood by exocytosis.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions