BIOL 1050 Lecture Notes - Lecture 5: Prostaglandin, Mitosis, Signal Transduction
6 Dec 2016
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Brain stem (cid:272)o(cid:374)sists of the (cid:373)edulla . (cid:894)(cid:373)ese(cid:374)(cid:272)ephalo(cid:374)(cid:895) It also receives inputs from monoamine neurons of the brainstem powerful modulating function. Monoaminergic neurons: contain either serotonin, dopamine, noradrenalin or adrenalin. The response is highly directed to the prey/ target. This response requires planning and a strategy. Response is impulsive and lacks cortical involvement. Resident male rats will attack unfamiliar males that intrude in its home cage. To determine the violent nature different types of intruders (females, anesthetized males) or a novel environment is used. To determine context a detailed quantitative analysis of the offensive behavioral repertoire is required. Increased levels of aggression are present in animals that have: abnormal cholinergic systems, higher brain dopamine levels, loss of 5-ht axons. Chemical regulation and communication uses endocrine and nervous system. It is the second great controlling system of the body. It coordinates with the nervous syste(cid:373) a(cid:374)d dire(cid:272)ts the a(cid:272)tivity of the (cid:271)ody"s (cid:272)ells.
