Exam 1 Review Notes

Exam 1 Review Notes - Exam 1 Review Essay Question 1.3 From...

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Exam 1 Review Essay Question 1.3 From the text and from the lecture, describe the nature and function of courtship rituals particularly in birds and their “ritualization of function” relationship to territoriality displays. Identify and thoroughly explain a display that in humans has become “ritualized.” Nature: Usually use protective/aggressive moves in courtship displays (e.g. smiling, spreading wings) Function: Shows that males can take care of females + offspring—if succeeds passes on genes Liking: nucleus acumbens Wanting: occipital prefrontal cortex Essay Question 2.3 In terms of the diagramed protective withdrawal reflex also choreographed in class, describe the neural links involved and the roles played by excitation and inhibition. Pain receptors are activated (for leg about to step on tack) 1) Excitatory signal activates interneuron to tell motor neuron to start flexing 2) Inhibitory signal activates interneuron to tell motor neuron to stop extension 3) Other interneuron is activated to continue flexor + extension muscles to support other leg (Opposite for other leg) Essay Question 2.1 1) Postsynaptic Receptor Site : receptor receives chemical message from presynaptic cell 2) Postsynaptic Receptor Site : transduction of chemical into electrical message 3) Dendrites : passive conduction of electrical message towards cell body 4) Cell Body : integration of electrical message (excitation or inhibition) w/ other arriving electrical messages 5) Axon Hillock : decision to trigger electrical signal/action potential if cell attains necessary excitation threshold (-55mV)= all-or-none response
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Exam 1 Review Notes - Exam 1 Review Essay Question 1.3 From...

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