chapt16LectureOutlines

chapt16LectureOutlines - Learning for Understanding and...

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1 Learning for Understanding and Retention Critical Thinking Skill #1 1. Summarize or restate in your own words. 2. Elaborate on the main idea. 3. Give examples to support or clarify. 4. Relate the issue/content/skill to life or other concepts.
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2 Chapter 16 Reproductive System This is the only system that . . . . need not function to live a full, impacting life.
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3 Outline Don’t forget to check out the Case Study. Human Life Cycle Male Reproductive System Hormonal Regulation in Males Female Reproductive System Female Hormone Levels Ovarian / Uterine Cycles: Nonpregnant Fertilization and Pregnancy Control of Reproduction Birth Control Methods / Infertility
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4 Human Life Cycle Puberty is the sequence of events by which a child becomes a sexually competent young adult. Girls: 11 – 13 years old. Boys: 14 – 16 years old. Note that the reproductive organs ( genitals , gonads ) have 5 functions. . . . . Review these in your textbook.
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5 Mitosis and Meiosis Every cell in the body ( body cells , somatic cells ) has its genetic material ( DNA ) distributed among 46 (23 pairs) chromosomes within their nucleus. Mitosis ensures every cell has a complete number of chromosomes with every cell division (for growth and repair). Meiosis reduces the chromosome number by half in gametes ( sex cells , germ cells ) from 46 23 (for sexual reproduction). Sperm and egg (gametes) are haploid ( n ). Somatic (body) cells are diploid ( 2n ). Mitosis – cell division or duplication division Meiosis – reduction division
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6 Human Life Cycle
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7 Check out the Male/Female Systems Review Concept Map (On Course Webpage)
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8 Male Reproductive System Male gonads, testes , are suspended in scrotum . Sperm are produced in testes and mature in epididymis . Travel to vas deferens for storage. Ejaculate from urethra . Semen composed of sperm and secretions form the seminal vesicles, prostate gland, and bulbourethral glands.
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9
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10 Male Reproductive System (Note anterior view found in your textbook)
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11 0007
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12 Orgasm in Males Penis has a long shaft and an enlarged tip, glans penis. During sexual arousal, autonomic nerve impulses cause erectile tissue to fill with blood (erectile dysfunction / impotence?). Contractions that expel seminal fluid from the penis are part of the physiological and psychological manifestations of the male orgasm. Around 400 million sperm contained in 3.5 ml of semen.
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13 Penis Anatomy
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14 The Testes Testes begin to develop inside the abdominal cavity and descend into the scrotal sacs during last two months of fetal development.
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chapt16LectureOutlines - Learning for Understanding and...

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