Put it in another way, a person consumes around 50 tons of food in the entire life. This six-inch large organ can be distinguished into body, tail, neck and head. The human body is about 60 percent water by weight. The body includes nine major organ systems, each composed of various organs and tissues that work together as a functional unit.
The body wall forms the cylinder.
It is DNA, passed from parents to offspring, that dictates the inherited characteristics of each individual human. For Human body, heart, blood, blood vessels and lungs are the major components of the blood circulatory system.
From here, it is pumped into the body's largest arterythe aortaand then progressively smaller Human body and arterioles until it reaches tissue. Dorsally they form bony arches protecting the spinal cord, and ventrally the ribs protecting the alimentary canal and heart.
Lipids —chiefly fatsphospholipidsand steroids —are major structural components of the human body. All the major types of food, namely, carbohydrates, lipids and proteins, are further digested and broken down into smaller absorbable products.
Known as the muscular hydrostat, tongue is the only muscle in the body that works without the support of skeleton. The ventral mesoderm is not so extensive; it remains near the alimentary tube and becomes the continuous muscle layer of the stomach and intestine. They give the segmental character to the body wall in neck and trunk, and, following their lead, the spinal cord becomes correspondingly segmented.
Integumentary system The integumentary system consists of the covering of the body the skinincluding hair and nails as well as other functionally important structures such as the sweat glands and sebaceous glands.
The endocrine secretion of the organ contains some very important hormone, including insulin and glucagon. Phospholipids and the steroid compound cholesterol are major components of the membrane that surrounds each cell. At the same time, it also plays an important role in the process of digestion.
In hot climates the problem is not in maintaining body heat but in dissipating it. For example, physical adaptations in humans are seen in response to extreme coldhumid heat, and high altitudes.
The person living in hot climates has little body fat; often a wide nose, since warming of the air in the nasal passages is not desirable; and, usually, dark skin, which provides a shield from harmful solar radiation.Powered by the heart, it is the body’s distribution system to organs with oxygen, hormones and essential nutrients that helps it function properly.
Read more. The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body.
The human body is the structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems.
The human body contains nearly trillion cells. There are at least 10 times as many bacteria in the human body as cells. The average adult takes over 20, breaths a day. Human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems.
Human anatomy and physiology are treated in many different articles. fmgm2018.com is a free virtual human anatomy website with detailed models of all human body systems. The Internet's best anatomy learning resource!Download