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May 26, 2024 · The human body is the physical substance of the human organism. Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands. Learn more about the composition, form, and physical adaptations of the human body.
Nervous System The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Respiratory System The respiratory system provides oxygen to the body’s cells while removing carbon dioxide, a waste product that can be lethal if allowed to accumulate.
Jan 26, 2024 · Each organ in the body is a complex system made up of numerous smaller parts. Many organs also depend on several other body parts. For example, to properly breathe, the lungs must work with the ...
The human body is composed of elements including hydrogen, oxygen, carbon, calcium and phosphorus. These elements reside in trillions of cells and non-cellular components of the body. The adult male body is about 60% water for a total water content of some 42 litres (9.2 imp gal; 11 US gal).
Jun 20, 2023 · The circulatory system is a body-wide network of blood, blood vessels, and lymph. Powered by the heart, it is the body’s distribution system to organs with oxygen, hormones and essential ...
Nov 3, 2023 · Skeletal system The skeletal system is composed of bones and cartilages.There are two parts of the skeleton; axial and appendicular. The axial skeleton consists of the bones of the head and trunk.The appendicular skeleton consists of the bones within the limbs, as well as supporting pectoral and pelvic girdles.. There are 206 bones in an adult human body.
Explore the human body in 3D with TeachMeAnatomy, a comprehensive and interactive online anatomy resource. Learn by region, structure or system.
Jan 2, 2017 · Anatomy is the science that studies the structure of the body. On this page, you'll find links to descriptions and pictures of the human body's parts and organ systems from head to toe. Start Here Anatomy & Physiology (National Cancer Institute) Body Basics (Nemours Foundation) Introduction to the Human Body (National Cancer Institute) ...
Aug 30, 2018 · The human skeletal system consists of all of the bones, cartilage, tendons, and ligaments in the body. Altogether, the skeleton makes up about 20 percent of a person’s body weight. An adult’s ...
Jun 14, 2024 · When one considers the relation of these subdivisions of the skeleton to the soft parts of the human body—such as the nervous system, the digestive system, the respiratory system, the cardiovascular system, and the voluntary muscles of the muscle system—it is clear that the functions of the skeleton are of three different types: support, protection, and motion.
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