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Reproductive System Bradley Aga & Alyscia Sanderson Period 5 Anatomy

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1 Reproductive System Bradley Aga & Alyscia Sanderson Period 5 Anatomy

2 Reproductive System also know as genital system
system of organs within an organism which work together for the purpose of reproduction fluids, hormones, and pheromones are important accessories to the system the sexes of different species often have significant differences, unlike most organ systems major external genitalia- penis and vulva major internal genitalia- testicles and ovaries communicable sexually transmitted diseases.

3 Female Reproductive System
Vagina Uterus Cervix Ovaries Fallopian Tubes Labia Majora Labia Minora Bartholin’s Glands Clitoris Vagina is a canal that joins the cervix to the outside of the body. It also is known as the birth canal. Uterus is a hollow, pear-shaped organ that is the home to a developing fetus. It is divided into two parts: the cervix, which is the lower part that opens into the vagina, and the main body of the uterus, called the corpus. The corpus can easily expand to hold a developing baby. A channel through the cervix allows sperm to enter and menstrual blood to exit. Ovaries are small, oval-shaped glands that are located on either side of the uterus. The ovaries produce eggs and hormones. Fallopian tubes These are narrow tubes that are attached to the upper part of the uterus and serve as tunnels for the ova (egg cells) to travel from the ovaries to the uterus. Conception, the fertilization of an egg by a sperm, normally occurs in the fallopian tubes. The fertilized egg then moves to the uterus, where it implants into the lining of the uterine wall. Labia majora enclose and protect the other external reproductive organs. Literally translated as "large lips," the labia majora are relatively large and fleshy, and are comparable to the scrotum in males. The labia majora contain sweat and oil-secreting glands. After puberty, the labia majora are covered with hair. Labia minora literally translated as "small lips," the labia minora can be very small or up to 2 inches wide. They lie just inside the labia majora, and surround the openings to the vagina (the canal that joins the lower part of the uterus to the outside of the body) and urethra (the tube that carries urine from the bladder to the outside of the body). Bartholin's glands: These glands are located beside the vaginal opening and produce a fluid (mucus) secretion. Clitoris The two labia minora meet at the clitoris, a small, sensitive protrusion that is comparable to the penis in males. The clitoris is covered by a fold of skin, called the prepuce, which is similar to the foreskin at the end of the penis. Like the penis, the clitoris is very sensitive to stimulation and can become erect. Female Reproductive System

4 Male Reproductive System
Urinary Bladder Ureter Seminal Vesicle Prostate Gland Bulbourethral Gland Ejaculatory Duct Ductus Deferens Epididymis Testis Glans Penis Urethra Penis Urinary bladder is the organ that collects urine excreted by the kidneys before disposal by urination. Ureter are the long muscular tubes that lead to your bladder, where your urine is transported. Seminal Vesicle are vesicular glands that are a pair of simple tubular glands poster inferior to the urinary bladder of male mammals. Prostate Gland helps to control the flow of urine. Bulbourethral Gland is a pea-sized gland located behind and to the side of the urethra that discharges a component of seminal fluid into the urethra. Ejaculatory Duct is a canal through which semen is ejaculated. Ductus Deferens propels sperm into the urethra during ejaculation. Epididymis is a long, coiled tube that stores sperm and transports it from the testes. Testis produces sperm cells (million per day) and secretes the male hormone testosterone. Glans penis is the sensitive bulbous structure at the distal end of the human penis. Urethra is a tube that connects the urinary bladder to the genitals for the removal of fluids out of the body. Penis is a general term for the organs with which male and introduce sperm into receptive females during copulation. Male Reproductive System

5 ORGAN TISSUE Epithelial Connective Nerve Muscle
Cells group together in the body to form tissues - a collection of similar cells that group together to perform a specialized function. There are 4 primary tissue types in the human body: epithelial tissue, connective tissue, muscle tissue and nerve tissue. Epithelial Tissue- The cells of epithelial tissue pack tightly together and form continuous sheets that serve as linings in different parts of the body. Epithelial tissue serve as membranes lining organs and helping to keep the body's organs separate, in place and protected. Some examples of epithelial tissue are the outer layer of the skin, the inside of the mouth and stomach, and the tissue surrounding the body's organs. Connective Tissue- There are many types of connective tissue in the body. Generally speaking, connective tissue adds support and structure to the body. Most types of connective tissue contain fibrous strands of the protein collagen that add strength to connective tissue. Some examples of connective tissue include the inner layers of skin, tendons, ligaments, cartilage, bone and fat tissue. In addition to these more recognizable forms of connective tissue, blood is also considered a form of connective tissue. Muscle Tissue- Muscle tissue is a specialized tissue that can contract. Muscle tissue contains the specialized proteins actin and myosin that slide past one another and allow movement. Examples of muscle tissue are contained in the muscles throughout your body. Nerve Tissue- Nerve tissue contains two types of cells: neurons and glial cells. Nerve tissue has the ability to generate and conduct electrical signals in the body. These electrical messages are managed by nerve tissue in the brain and transmitted down the spinal cord to the body. Nerve Muscle

6 Interesting facts about Reproductive System
The largest cell in the female body is the egg. A woman never runs out of eggs. At birth she has between 1 and 2 million potential eggs and by puberty has 300,000 to 400,000 viable eggs that can be fertilized. About 500 million sperm mature every day in a healthy male. The male scrotum hangs outside the body since the internal body temperature is too high and will kill the sperm. The average lifespan of an egg once it is released from the ovary is hours after which it either disintegrates or is flushed out of the body with the menstrual flow. The average life span of the sperm is 2-3 days. The male reproductive system produces millions of sperm to transmit them to the female body to fertilize one egg. Once the sperm has penetrated the egg the outer shell becomes impenetrable to other sperm. Interesting facts about Reproductive System

7 In the uterus, prior to birth, the baby’s body is covered by a thin layer of hair. As soon as the baby is born that hair soon disappears. The hair is called lanugo. Babies are sometimes born with several teeth called milk teeth that soon fall out after the baby is born. Female babies can actually bleed vaginally for several days after birth in response to the removal of the mothers hormones during pregnancy. When a baby is born, both male and female, the mammary glands are sometimes so stimulated by the mothers hormones that they give tiny drops of milk for about a week.

8 LAB Who is ready to give birth???
We are going to take a grapefruit and you are going to try and get it through the ring holder. Be gentle with the grapefruit because it represents the head of a newborn baby. Try not to squeeze it too hard, we don’t want any juices coming out of the baby’s head. The average women is ready to give birth when fully dilated at 10 cm. Some women cannot dilate past 4 cm so the have to get a caesarean section. Some women can open up to about 25 cm, which makes for a very fast labor, but this is not very common. LAB

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