Holy Rosary College Of Sta. Rosa Laguna, Inc. Biology 10 Reproduction PDF

Mission: H R Reproduction C BIOLOGY 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC. S.Y. 2024 – 2025  HOLY ROSARY COLLEGE OF...

Mission: H R Reproduction C BIOLOGY 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC. S.Y. 2024 – 2025  HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC. S.Y. 2024 – 2025 Parts and Functions of the Reproductive System  Objective(s) At the end of the lesson, you are expected to: Identify the different structures of the reproductive system; HOLY ROSARY COLLEGE OF Mission: Reproduction Biology 10 STA. ROSA LAGUNA, INC.  What is the Reproductive System? body's mechanism responsible for creating new life Function: production of gametes (sperm and egg) that are essential in the formation of a new individual. Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Gametes Also known as reproductive or sex cells differ in female and male reproductive systems) Males – sperm cells Females – egg cells Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Sexual Reproduction Formation of new life that involves the union of gametes. Egg cell (n = 23 / haploid) + sperm cell (n = 23 / haploid = Zygote (2n = 46 diploid) Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Parts of the Reproductive System Male Reproductive System 1. Penis 2. Urethra 3. Scrotum 4. Testicle 5. Seminal Vesicle 6. Vas deferens Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 1. Penis Male external organ that serves both reproductive and urinary functions Involved in delivering the sperm in the female reproductive tract. Eliminates urine from the body Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 2. Urethra tube that carries urine from the bladder to the penis. In males, it also serves as the passage of both urine and semen Fluid containing sperm cells Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 3. Scrotum Pouch of skin and muscle below the penis Function: protect the testicles It can contract or relax depending on temperature changes FUN FACT: Sperm must maintain 1-2 ∙ºC below body temperature Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 4. Testicle Male reproductive organ responsible for producing sperm and the hormone testosterone hormone important in the development of male secondary sexual characteristics Located within the scrotum Sperm produced in the testicles mature and are stored until ejaculation Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 5. Seminal Vesicle Paired glands that contribute to the composition of semen. Produce fluid rich fructose (a sugar) that nourishes and supports sperm. Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Male Reproductive System 6. Vas Deferens Muscular tube that transports mature sperm from the epididymis (a part of the testicle) to the ejaculatory duct. During ejaculation, it contracts to propel sperm into the urethra to combine with other fluids to form semen. Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Parts of the Reproductive System Female Reproductive System 1. Ovaries 2. Fallopian Tube 3. Uterus 4. Cervix 5. Vagina Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Female Reproductive System 1. Ovaries Paired organs located on each side of the uterus Produce egg cells (ova) and female sex hormones such as estrogen and progesterone Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Female Reproductive System 2. Fallopian Tubes Tubes that extend from the ovaries to the uterus Serve as the pathway for eggs to travel from the ovaries to the uterus Site of fertilization Process of the sperm uniting with the egg Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Female Reproductive System 3. Uterus A muscular organ where a fertilized egg implants and grows during pregnancy Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Female Reproductive System 4. Cervix The lower part of the uterus that connects to the vagina During the menstrual cycle, it produces mucus that is an indicator of fertility During childbirth, it dilates to allow the passage of the baby from the uterus to the vagina. Acts as the barrier to prevent infections from reaching the uterus Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Female Reproductive System 5. Vagina Muscular tube connecting the cervix to the external female genitalia, or the vulva Functions: 1. Passageway of menstrual flow 2. Receives the penis during intercourse 3. Acts as the birth canal during childbirth Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Sexual Reproduction in Humans Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC. S.Y. 2024 – 2025 Menstrual Cycle  Menstrual Cycle A natural, recurring process that occurs in adult females One cycle consists of 28 days Has four phases: 1. Menstrual Phase 2. Follicular Phase 3. Ovulation 4. Luteal Phase Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Menstrual Cycle 1. Menstrual Phase (Days 1-5) if fertilization does not occur in the last cycle, the uterine lining will begin to shed and form menstrual blood. 2. Follicular Phase (Days 6-14) A hormone named follicle- stimulating hormone is released stimulates the ovaries to produce several follicles. The uterine lining begins to thicken in preparation for a baby Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Menstrual Cycle 3. Ovulation (Day 14) mature follicle releases an egg into the fallopian tube, making it available for fertilization by sperm. 4. Luteal Phase (Days 15-28) the empty follicle transforms into the corpus luteum, producing progesterone. This hormone prepares the uterus for a potential pregnancy, maintaining the thickened uterine lining. Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  Sexual Reproduction in Humans Mission: Reproduction Biology 10 HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC.  HOLY ROSARY COLLEGE OF STA. ROSA LAGUNA, INC. S.Y. 2024 – 2025 Any questions?