Sexual Regulation

Sexual Regulation - 1 Sex: Evolutionary, Hormonal and...

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Unformatted text preview: 1 Sex: Evolutionary, Hormonal and Neuronal Basis Chapter 12 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 2 Four Stages of Reproductive Behavior 1. Sexual Attraction 2. Appetitive Behavior 3. Copulation 4. Postcopulatory behavior ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 3 Sexual Attraction Readiness to reproduce. Rapid approach. How hard they work to reproduce etc. 1. Appearance: In monkeys female sex skin attracts the male monkey 2. Female Odors: Male monkeys are also attracted by odors released by the female. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 4 Appetitive Behaviors Behaviors that establish, maintain and promote sexual behaviors. 1. Proceptive behavior: Behavior expressed by females. Remaining close to males, by alternating approach and retreat behaviors 2. Males remain close to females. Mammals sniff female face and vagina. Build nests. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 5 Copulation Also called coitus. 1. Intromission: Inserting penis into female vagina with pelvic thrusts. 2. Semen is release at the height of sexual activity 3. Refractory Period: A phase after copulation when the animals do not engage in copulation. Varies minutes to months. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 6 Postcopulatory Behaviors Behaviors that follow copulation. 1. Copulatory lock: Swelling of penis inside the vagina. 2. Parental Behaviors: Care of the young following copulation pregnancy and birth. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 7 Fertilization ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 8 Hormones and Copulation...
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Sexual Regulation - 1 Sex: Evolutionary, Hormonal and...

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