Body Systems Preparation Part III
In the reading from the book, Human Body Systems, team A will give a brief overview of the skeletal, muscular, encoring and male and female reproductive systems and explain what we did or did not already know, what we found interesting and why, as well as what we learned from this week that can help team A with week five presentation.
In chapter eleven, on the skeletal system, the human skeleton consists of 206 bones and provides support to our bodies. After reading this chapter team A learned about rheumatoid arthritis. Rheumatoid arthritis is a disorder of the skeletal system. The most interesting finding about rheumatoid arthritis is that it is not a disease that results from wear and tear; rheumatoid arthritis is the result of an autoimmune disease. This is extremely interesting to Angelina because she would like to continue her education to help treat patients. Anyone can be affected by this disease at any given time and learning about it can help her understand the symptoms. The endocrine system consists of small glands that are strategically place throughout the body. These glands produce and release chemical substances called hormones. Hormone is a chemical that travels through the blood to cause effect in other areas of body function. What is interesting about hormones is that these chemicals affect five different areas of the body, homeostasis, growth and development, reproduction, energy production and behavior (Chiras, 2013). Team A found interesting is how these small glands are responsible for important responses in the body, for example, the Fight or Flight response by the adrenal glands. Adrenalin and noradrenalin are secreted under stress, which elevate blood glucose levels, making more energy for the muscle cells to move appropriately which will increase breathing as well as heart rate getting us ready to flight or flee in those stressful situations (Chiras, 2013).

There are a lot of important functions that the human body does that we commonly take for granted. Very often our muscles from time to time will contract from being stimulated, reminding us that they are alive and ready to perform work. (Chiras 2013) Despite the obvious signs that our muscles can grow, twitch, and create heat, team A was not aware that not all the muscles throughout our skeletal system actually move (Chiras 2013). Muscles are constantly working to steady our joints, granting us the ability to keep posture or even sit upright (Chiras 2013). Cellular energy is quite vital in the muscular system and benefits our energy production by creating large quantities of heat as a result it engages endurance and builds rich oxygen to the skeletal fibers ultimately delivers the required strength to live an abundantly healthier and longer existence (Chiras 2013). The male reproductive system has many organs. The penis is the organ of copulation, below the penis are the testes, also called testicles, they are located inside the skin called the scrotum. The testicles produce sperm and male hormones. It also has many additional organs that produce part of the semen and duct system that transports the sperm into the vagina during intercourse (Chiras, 2013). What team A found interesting was that testosterone plays a big part in the male hair follicles and can cause baldness. According to Chiras (2012), it is believed that the presence of testosterone and certain genes that lead to this condition which know as pattern baldness. The female reproductive system plays a huge role in propagating our species. The female reproductive system consists of external parts, known as the external genitalia and several internal organs (Chiras, 2013). The external genitalia are the externally visible parts of the female reproductive system. The internal organs, such as the uterus or womb is a peer shaped organ in the pelvic cavity (Chiras, 2013). During each menstrual cycle, one ovary releases an egg. Estrogen and progesterone plays a big part in the women’s reproductive system. As the level of estrogen in the blood increases, the hormone begins to stimulate follicle development in the ovaries (Chairs, 2013). What we found interesting was that fifty percent of infertility problems are from women, thirty percent are from men and twenty percent are from both partners (Chiras, 2012). The skeletal, muscular, encoring and male and female reproductive systems and how the body works for each systems, our team will have a greater understanding on the conditions and how the systems of the body function are affected, which will help us prepare for our presentation in week five.