CHDV 23249 Lecture Notes - Lecture 4: Spotted Hyena, Sexual Attraction, Pupa
17 Jan 2017
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Document Summary
Chemical substances that the body produces by ductless glands and specialized neurosecretory cells transported by the circ. system throughout the body to target organs specific action is dependent on specific receptor sites at the target tissue. Hormones that are created by amino acids (amino acid based hormones) Hormones that are produced by cholesterol/steroids (cholesterol based) Hormones that are created by groups of amino acids (protein based) Diversity in endocrine system (the glands and cells that produce hormones and hormone effects on other glands) Hypothalamo-pituitary system: very small part of body, but controls a lot, anterior pituitary communication with brain with series of ducts (hp portal system, posterior pituitary. Nerves that go directly inside of the tissue in order to communicate with brain. Hormone system: lots of feedback loops (one hormone causes another to be produced (feedback loop), or one hormone inhibits itself in the long run, some hormones exclusively only work when present together (synergystic effect), (antagonistic effect)
