Name____________________________________________ Ms. Sameroff Class__________ Date______________ Objective: SWBAT discuss the structures of the female and male reproductive systems by listing the organ or structure that matches each function or structure. DO DONOW NOW VOCABULARY ACTIVITY #1 Activity #2 Exit DO NOW Vocabulary- Use your worksheet to define the words below. ACTIVITY #1 1 ACTIVITY #2 1. Use the reading to complete the structures and functions of the human reproductive system chart below. 2 2. In what ways are the female and male reproductive systems similar? In what ways are they different? ________________________________________________________________________________ ________________________________________________________________________________ 3 ________________________________________________________________________________ ________________________________________________________________________________ 3. Describe the stages an egg goes through from fertilization to the birth of a baby. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 4. Imagine you are a doctor and one of your patients just found out she is pregnant. Knowing that anything she takes into her body can cross the placenta and affect the developing fetus, what will you recommend to her in order to have a healthy baby? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ EXIT TICKET After the lesson, now I understand… ___________________________________________________________________________________________ ___________________________________________________________________________________________ Something I still need help with… ___________________________________________________________________________________________ ___________________________________________________________________________________________ 4 THINK, PAIR, SHARE ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ______________________________________________________________________ ACTIVITY #2 Structure and Function of the Male Reproductive System The male reproductive system includes both external and internal organs. The two main functions of the male reproductive system are the production and storage of, the male reproductive cells, and the transfer of sperm to the female’s body during sexual intercourse. During the early teen years, usually between the ages of 12 and 15, the male reproductive system reaches maturity. At that time hormones produced in the pituitary gland stimulate the production of, the male sex hormone. Testosterone initiates physical changes that signal maturity, including broadening of the shoulders, development of muscles and facial and other body hair, and deepening of the voice. Testosterone also controls the production of sperm. A physically mature male is capable of producing sperm for the rest of his life. Health-literate teens can describe gender differences, expectations, and biases. At this time in a teen’s life, it is important to learn to identify ways of resisting persuasive tactics regarding sexual involvement. External Male Reproductive Organs The testes, the penis, and the scrotum are external structures involved in the process of reproduction. The (singular, testis), also called testicles, are two small glands that produce sperm. These glands secrete testosterone. The testes are located in the, an external skin sac. The is a tube-shaped organ that extends from the trunk of the body just above the testes. It is composed of spongy tissue that contains many blood vessels. When blood flow to the penis increases, it becomes enlarged and erect. This normal body function is called an erection. Males experience erections easily and frequently during puberty. Erections can occur for no reason. Sometimes an erection results when clothing the male is wearing causes friction. The penis releases semen. is a thick fluid containing sperm and other secretions from the male reproductive system. At the height of sexual arousal, a series of muscular contractions known as ejaculation may occur. Fertilization—the joining of a male sperm cell and a female egg cell—can result if ejaculation occurs during sexual intercourse. Sperm cannot live in temperatures higher than the normal body temperature of 98.6°F. The scrotum protects sperm by keeping the testes slightly below the normal body temperature. When body temperature rises, muscles attached to the scrotum relax, causing the testes to lower away from the body. If body temperature lowers, the muscles tighten and the testes move closer to the body for warmth. Tight clothing that holds the testes too close to the body may interfere with sperm production. When a male begins to produce sperm, he may experience nocturnal emissions, or ejaculations that occur when sperm is released during sleep. This is a normal function that relieves the buildup of pressure as sperm begin to be produced during puberty. During puberty, teens should assess their lifelong health and other goals, and set personal goals for maintaining a healthy body. Internal Male Reproductive Organs Although sperm are produced in the testes, which are suspended outside the body, they must travel through several structures inside the body before they are released. These structures include the vas deferens, the urethra, the seminal vesicles, the prostate gland, and Cowper’s glands. 5 1. What is the function of the testes? _____________________________________________________________________________________________________ _______________________________________________________________________________________________ 2. Describe the path that sperm follow from the time they form until they leave the body. _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ ____________________________________________________________________________________________ __________________________________________________________________________________________________ 3. ____________________ cannot live in temperatures higher than the normal body temperature of 98.6°F 4. The _______________, the penis, and the scrotum are external structures involved in the process of reproduction. 5. __________________ initiates physical changes that signal maturity, including broadening of the shoulders, development of muscles and facial and other body hair, and deepening of the voice. DIRECTIONS: Match each word with its definition. 1. Sperm 2. Testicles 3. Testosterone a. two small glands that produce sperm b. initiates physical changes that signal maturity, including broadening of the shoulders, development of muscles and facial and other body hair, and deepening of the voice. c. produced in the testes REGENT QUESTIONS 1. Which statement describes a function of the human male reproductive system? a. It produces gametes in testes b. It supplies a fluid that protects the fetus c. It provides support for the development of the embryo d. It provides nutrient materials through a placenta 2. Which situation would be part of the normal reproductive cycle of a human? 6 a. the presence of testosterone regulating gamete production in a male b. estrogen in concentrations that would produce sperm in a female c. a high progesterone level in a male d. a low insulin level in either a male or female EXIT TICKET After the lesson, now I understand… Something I still need help with… 7 8 EXIT TICKET After the lesson, now I understand… ___________________________________________________________________________________________ ___________________________________________________________________________________________ 9 Something I still need help with… ___________________________________________________________________________________________ 10
