The Human Body: A Finely Tuned Machine

1383 words - 6 pages

The body works in amazing ways like a fine tuned machine. All organ systems within the body depend on one another for survival in some way or form at all times. Cherif et al., (2010) state, the body depends on the precise action of each organ to maintain physical, mental, and emotional health of a human being. Also, homeostasis, the regulatory of body temperature plays a survival role in maintaining body functions. The integumentary system (skin) is the largest, and the most important part of the body. The skin is just one of the organ systems that will be discussed (Thibodeau & Patton, 2008). The body is expected to perform specific duties at specific times the organ systems as a whole, the most important organ system the integumentary system, and homeostasis, are what enables the body to perform on demand.
Some of the organ systems of the body are the integumentary system, skeletal system, muscular system, nervous system, senses, and endocrine system. They are all equally as important to the survival of the human body. The first organ system that will be discussed is the integumentary system. The main purpose of the integumentary system is protection from infection, harmful rays of the sun, and cuts. Furthermore, the organs found in the integumentary system are the skin, hair, nails, sense receptors, sweat glands, and oil glands. The second organ system is the skeletal system. The skeletal system is made up of a total of 206 bones, 80 bones in the axial skeleton which is the trunk and head, and 126 bones in the appendicular skeleton which is the upper and lower extremities, and pelvis area. In addition, the main duties of the skeletal system are posture, aids muscles in movement, and heat production. The organs found in the skeletal system are bones and joints. The third organ system is the muscular system. The muscular system has three main muscles that move bones, the prime mover or the agonist, the helper muscle or the synergist, and the antagonist muscle this muscle is responsible for the opposite of agonist the relaxer muscle. Furthermore, the organs within the muscular systems are muscles; their main duties are movement, posture or muscle tone, and heat production. The fourth organ system is the nervous system. There are two main parts to the nervous system, the central nervous system (CNS), and the peripheral nervous system (PNS); the brain and spinal cord are found in the CNS, and cranial nerves and spinal nerves are found in the PNS. The main duty of the nervous system is to carry signals to the brain and spinal cord and back out to the spinal and cranial nerves (Thibodeau & Patton, 2008). The spinal nerves are responsible for transferring signals to the spinal cord, abdomen, limbs, and the chest and the cranial nerves are responsible for transferring signals between the brain, neck and head (LaFleur Brooks, 2010). The organs found in the nervous system are the brain, spinal cord, and nerves. The fifth organ...

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