BPK 105 Lecture Notes - Lecture 6: Anterior Pituitary, Cell Membrane, Autonomic Nervous System

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 105
• Professor: Ryan Dill

Document Summary

Autocrine- stimulates cell that secreted it; white blood cells. Paracrine- secreted by one type of cell into extracellular fluid and affect surrounding cells (histamine) Neurotransmitters- produced by neurons secreted into a synaptic cleft by presynaptic neurons & influence postsynaptic cells (epinephrine) Endocrine- secreted into blood stream by specialized cells (inulin, estrogen: hypothalamus regulates body temperature, metabolic processes, autonomic nervous system, pituitary gland secretions control other endocrine glands and influence growth, metabolism, maturation. Anterior releases hormones upon receiving releasing or inhibiting hormones from the hypothalamus. These hypothalamic hormones tell the anterior lobe whether to release more of a specific hormone or stop production of the hormone: acth, fsh, gh, lh, tsh, prolactin. Posterior contains the ends of nerve cells coming from the hypothalamus. The hypothalamus sends hormones directly to the posterior lobe via these nerves, and then the pituitary gland releases them: adh, oxytocin, briefly describe the functions of the endocrine system. Examples: steroid hormones (androgen and estrogen), aldosterone, cortisol.