Human anatomy is the study of body systems which is made up of cells, tissues, and organs. Human anatomy is important to study to help explain how organs and other structures of the body work. There are eleven systems in the human body that i will discuss. Each system depends on the other to keep the body functioning.The systems of the body are the integumentary,circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous,reproductive and respiratory. It is important to understand
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2014 Histology of the Human Tooth Teeth in the human mouth may just look like pieces of bone mass shooting out of the gum line, but they are actually much more complex. They function for the mechanical breakdown of food, and are essential for the formation of speech. Humans throughout their existence have needed different sizes and shapes of teeth to adapt to their diet. Humanity’s’ ancestors consumed less meat and coarser vegetable material, whereas modern day humans consume more meat as a
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but there are certain locations where they can be located. Charles Darwin proposed that humans probably arose in Africa, and was explained thoughtfully in his book The Descent of Man and Selection in Relation to Sex. He believed that Africa was the most likely place to find fossils because our “early progenitors” lived on the African continent (pg. 90). Apes adopted the tropical climate, and he believed that humans were more alike with African apes, than Asian apes. As it came to happen, some of the
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symmetry does the animal exhibit?” Animals can be asymmetrical, that is, possessing no organized body plan. Only the Sponges fall into this category. Animals can also be radially symmetrical, where the body is arranged around a central point at all stages of life. Many in the phylum Cnidaria (pronounced “knee dare ya”) are radially symmetrical. All other animals are bilaterally symmetrical, that is, their bodies can be bisected into two identical, but mirror image halves. 1 Figure 1. Simplified
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will help as I pursue a career in the occupational therapy field. Equally as important, was the hands-on lab portion of the class that has helped me to gain a greater understanding of the inherent makeup and inner workings of the physical body. The overall structure of the text book provided me with an understanding of basic concepts and terminologies in areas such as the chemistry of life, the cell, genetics, plant and animal forms and functions, and ecology. The end of chapter review questions helped
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Introduction In this procedure, the external and internal structures of a sheep’s heart was examined and identified by dissection. The heart is a muscle that pumps oxygenated blood and nutrients throughout the body. A sheep’s heart has four chambers like most mammals. Two of those chambers are receiving chambers called the right and left atrium. The other two chambers are pumping chambers called the right and left ventricle. The efficiency in the cycle of blood depends on the sequential contraction
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prolific: South and Central America, Africa, the Indian subcontinent, Micro-, Mele- and Poly-nesia and most of Asia. The uses are so respected that they were documented by Ayurvedic medicine in Sanskrit from 1500BC in all areas relating to the mind, body and spirit. Early European explorers including Captain Cook wrote affectionately about the beauty of communities across the Pacific using coconut oil as an integral part of their daily lives. During WWII the water of the young green coconut was successfully
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male. His estimated age at death depends upon whether the maturity stage of his teeth or skeleton is used, and whether that maturity is compared to that of modern humans or chimpanzees. A key factor here is that while modern humans have a marked adolescent growth spurt, chimpanzees do not. While initial research assumed a modern human type of growth, more recent evidence from other fossils suggests this was less present in early Homo. This affects the estimation of both his age and his likely stature
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loved one that has died or suffered the irreparable consequences of an electrical accident. No matter how much an employer tries to safeguard its workers or how much safety training is provided; the ultimate responsibility lies with the worker. The human factor is part of every accident or injury. The purpose of this paper is to identify electrical safety hazards and present ways to minimize or avoid their consequences. It is a guide for improving electrical safety and contains information
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FERTILIZATION – males and females release gametes into the same environment and fertilization occurs outside the body. Especially common in aquatic animals. Unique “recognition” proteins on the surface of gametes keep sperm cells from fertilizing eggs of the wrong species. EX. Salmon, sponges, corals, sea urchins, some amphibians INTERNAL FERTILIZATION – a male deposits sperm inside a female’s body, where fertilization occurs. After copulation, animals may lay hard-shelled eggs or bear live young.
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