ANSC 340 Lecture Notes - Lecture 9: Activin And Inhibin, Ovulation, Dendrite
24 Sep 2016
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Neural control: simple neural reflexes (neurons do the work) Ex: touch stove, move hand: neuroendocrine reflexes (neural hormones do the work) Sensory neurons (afferent send signal to spinal cord) spinal cord ( distribution center ) efferent neurons (nerves that leave spinal cord and travel to target tissues) target tissues touch spinal cord neural highway. 3. transmission (spinal cord & interneurons: efferent neurons- release neurotransmitters to initiate a response, neurotransmitter. 7. response by target tissue (pull hand away, etc) 1-4: hypothalamus [ gate keeper - manages reproduction, neurohormone, blood, target tissue, response by target tissue. Into anterior pituitary (has gnrh receptors); into blood. Gonads (ovaries & testis) have fsh & lh receptors. Neurons release ot into blood system through posterior. Moves sperm into ductus deferens to tail of epididymis. Gnrh gnrh receptors activate g proteins camp p kinase. Dendrite secretes neurotransmitter/hormone when cell body is stimulated. Capillary bed is a portal that delivers to anterior pituitary.
