Early Human Bodies

The body undergoes various processes every moment to ensure that it operates normally and within its expected limits. The human body is made is a

The human body consists of 11 organ systems in which each of them carry out specific functions required for our everyday life. Each organ systems are composed of different organs, which are made up of tissues, which are made of cells. The 11 organ systems in our body are:

(Driskell 29) These simple carbohydrates are easily broken down, converted into glucose for the body and easily flow into the blood stream. The downside to this form of carbohydrates is that they are most common in the form of refined sugars or refined flours which retain very few vitamins after being processed. (“HealthStyle Fitness”) As the body uses this form of glucose a cycle begins which involves fluctuations of high and low blood sugar. This cycle works when blood sugar rises after the consumption of simple carbs and then as the blood sugar begins to drop the body demands more simple carbs to bring blood sugar levels back to up. The cycle that is formed essentially keeps the body from burning body fat because there is a continuous demand and consumption of simple carbohydrates. The second form of carbohydrates is that of complex carbohydrates which consist of polysaccharides, three or more monosaccharides. These complex carbs are found in the form of starch, fiber and glycogen (animal starch). Those complex carbohydrates consumed in the form of starch are found in plant foods like corn, wheat, potatoes, cereals, pastas, and beans. When they are broken down these carbs allow for the slow production and release of glucose into the blood stream and allowing for a consistent blood sugar level. (Guthrie 27) Dietary fiber is another form of complex carbs which are present in plant foods because fiber is

The body has different organs that work together and they make up a system such as the

My daily diet should contain a balance of proteins, carbohydrates (carbs), and lipids (collectively called macronutrients). According to Kirby (2011), micronutrients are substances such as vitamins, and minerals that are essential for healthy growth and developments. The body only requires small quantities of micronutrients and without them serious problems can arise. The role of each micronutrient makes proteins, carbohydrates, and lipids equally important in my diet. Proteins are important for repair and tissue growth, helps the body to make enzymes and hormones, as well as preserve lean muscle mass and is a source of energy. Carbohydrates are the body main source of energy and are easily broken down into glucose

The heart, blood and blood vessels make up the basis of the cardiovascular system also known as the circulatory system. The average human body contains approximately 5 litres of blood which is carried around the body via a network of blood vessels split into three types; arteries, veins and capillaries. The arteries are the largest of the three vessels and carry blood away from the heart. Veins carry blood to the heart and are smaller than arteries, then finally the smallest vessels known as capillaries distribute the oxygen rich blood to organs whilst simultaneously picking up the waste carbon dioxide and water from the organs to transport back to the heart where it can be pumped into the lungs to be exhaled.

Explanation: A). Blood carries oxygen from the lungs to the cells of organs and tissues and carbon dioxide from those organs and tissues to the lungs inside our body.

The heart beats and pumps blood through our blood vessels, in which carries oxygen to our lungs. There are three main types of blood vessels in the heart circulatory, in which are the Arties, Capillaries, and Veins. The Arteries that is the aorta large artery carry oxygen blood away from the heart, the branch becoming smaller as they carry blood further from the heart into organs. Capillaries connect the arteries and veins allowing oxygen, nutrients and carbon dioxide pass through the cells. Veins are the one that passes through the vessels and remove waste products from our bodies.

All the systems in the human body are vital to our survival and well-being. If you take away the functions of just one of these systems our whole body will cease to work properly. The main systems of the human body are the nervous, endocrine respiratory, circulatory, immune, digestive, excretory, skeletal, muscular, and the reproductive systems. They all work together in harmony and unison to keep us alive.

Our body has levels that build up on each other, we have cells that make up tissues, and tissues that makeup organs, and organs that can make up organ system. Each cell type for the function has its own way of functioning in the body, but they all work together to release the necessary fluids the body needs and perform their function.

There many diseases and conditions that can affect the human body, that may be unpredictable. It may affect different systems of the body, and there might not be cure or treatment. The body consists of three main systems the Integumentary System, Skeletal System, and the Muscular System, which help us with our everyday lives. For example, the Integumentary System is the largest organ in the body, which provides protection from viruses and other diseases. Our skin helps regulate body temperature and eliminate waste.

The circulation of blood allows for the transport of nutrients, gases, blood cells and hormones for immunological defense, nutrition, as well as temperature, pH and homeostatic maintenance. The heart muscle circulates blood, a fluid containing erythrocytes, leukocytes platelets and plasma. Since humans have a closed cardiovascular system, gases and nutrients diffuse across blood vessels into interstitial fluid, which then carry these essential components to various cells, while moving cellular waste products away. The arteries transport oxygenated blood from the left ventricle through the aortic semilunar valve. Circulation begins in the aorta, a large, arched, thickset artery that branches into major arteries of the trunk as well as arteries of the lower extremities below the diaphragm. Capillaries are a system of small blood vessels that transport blood to the venous system after distributing

Conclusion: In conclusion the pelvis of the early hominin of the homo genus would have had wider pelvis’s, shorter legs, smaller iliac plates and non-curved hip bones meaning a lack in locomotion efficiency causes more energy loss when they walk because there is more hip movement to support the unsupported side of the leg, through evolutionary processes such as thermoregulation hominins body started to adapt to the heat of the sun and their pelvis started to grow more narrow with a smaller birth canal furthermore having longer leg ligaments and gluteals, this would help with locomotion efficiency as the hip bone is more curved and acts as a stabiliser for better balance whilst walking causing less energy loss because less hip movement whilst

Veins, arteries and capillaries are the delivery routes of the heart which allow blood to be distributed to the body and organs. Moreover, where gas exchange takes place. Arteries carry oxygenated blood away from the heart to the systemic circulation and deliver oxygen-rich blood to the body whereas veins carry de-oxygenated blood from capillary beds towards the heart to get oxygenated (Marieb & Hoehn, 2013). For gas exchange the capillaries are in the lungs. Gas exchange occurs when O2 from the lungs to the bloodstream via the capillaries; at the same time CO2 passes from the bloodstream to the lungs. The Capillaries are located in the lungs within the muscles. Capillaries transport oxygen through its walls and diffuse into the tissue.

The study of the systems in the body is made by a branch of biology called Anatomy. Human anatomy is formed by of cells, tissues, and organs. It is important to know anatomy to help us explain how organs and other structures of the body work. There are nine systems in the human body. Each system depends on the others to keep the body functioning correctly. It is important to understand how human body systems work together.