01:119:116 Lecture Notes - Lecture 13: Thyroid, Posterior Pituitary, Prothoracicotropic Hormone

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:116
• Professor: D.Stern- Cardinale

Document Summary

Control of hormone secretion: c/c, seq endocrine, neuroendocrine pathways. Invertebrate endocrine control: c/c, seq, iov invertebrate pathways and hormones. Vertebrate endocrine control: c/c, seq, iov vertebrate pathways and hormones. Positive feedback: signal a causes response b which in turn lowers strength of a signal a causes response b which in turn amplifies strength of a. Endocrine cells respond directly to stimulus: secretes hormone. Hormone travels via bloodstream and interacts with target cells. Travel via bloodstream and interacts with target cells. Larva grows in discrete stages and molts in between. Neurosecretory cells in brain produce prothoracicotropic hormone (ptth) Ptth signals prothoracic gland to make ecdysteroid triggers molting. Produced in bursts each burst triggers a molt. Stimulus mechanoreceptors sensing a push against the exoskeleton. Also induces metamorphosis change in form to adult. Synthetic jh prevents maturation: approved in un for malaria prevention. Connected to pituitary gland by portal vessels. 2 modes of action (1) releasing hormone (rh) and inhibiting hormones (ih)