HSCI 100 Lecture Notes - Lecture 14: Autonomic Nervous System, Signal Transduction, Posterior Pituitary
21 Jan 2017
School
Department
Course
Professor
Document Summary
Hsci 100: lecture 14: the endocrine system powerful messengers . Regulates and integrates the body functions via hormones. Has target cells that have hormone receptor. Often results in a slow but prolonged response, as opposed to the virtually instantaneous. Secretes hormones that move through the bloodstream responses of the nervous system. The nervous and endocrine system are important in maintaining homeostasis: The hypothalamus bridges regulatory functions of both systems. The input information can result to a very rapid response (in the nervous system) or more prolonged and stable responses (endocrine system) = chemical signals that promote communication between cells, body parts, and even individuals. Prostaglandins: local hormones that affect neighboring cells so they aren"t carried in the bloodstream (paracrine) Pheromones: volatile chemical signals that move between people and influence the behaviour of other people. Peptide hormones: hormones that bind to a receptor in the plasma membrane and generate signal transduction response (i. e. insulin)
