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Sep 21, 2024 · Chemical composition of the body. Chemically, the human body consists mainly of water and of organic compounds —i.e., lipids, proteins, carbohydrates, and nucleic acids. Water is found in the extracellular fluids of the body (the blood plasma, the lymph, and the interstitial fluid) and within the cells themselves.
- The Editors of Encyclopaedia Britannica
The body's shape is determined by a strong skeleton made of bone and cartilage, surrounded by fat (adipose tissue), muscle, connective tissue, organs, and other structures. The spine at the back of the skeleton contains the flexible vertebral column , which surrounds the spinal cord , which is a collection of nerve fibres connecting the brain to the rest of the body.
Oct 25, 2023 · Generally speaking, there are 206 in an adult but the definite number is more nuanced and can vary from person to person. These bones are mainly divided into two parts, called axial and appendicular skeletons. Here’s a skeletal system diagram providing you with a broad overview of the two skeletons and the bones in the body:
- 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.
- Muscular system. The muscular system consists of all the body muscles. There are three muscle types; smooth, cardiac and skeletal muscles. Smooth muscle is found within walls of blood vessels and hollow organs such as the stomach or intestines.
- Cardiovascular system. The cardiovascular system is comprised of the heart and the circulatory system of blood vessels. The heart is composed of four chambers; two atria and two ventricles.
- Respiratory system. The respiratory system consists of a series of organs; the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and lungs (alveoli).
Jan 26, 2024 · The five vital organs are as follows: brain. heart. lungs. liver. kidneys. It is not possible to live without these organs. That said, in the case of the paired kidneys and lungs, a person can ...
Jan 10, 2024 · The skeletal system is your body’s support structure. It gives your body its shape, allows movement, makes blood cells, provides protection for your organs and stores minerals. The skeletal system is also called the musculoskeletal system. Find a Primary Care Provider. Schedule an Appointment.
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ANATOMY SYSTEMS. Skeletal System The skeletal system includes all of the bones and joints in the body. Muscular System The muscular system is responsible for the movement of the human body. Cardiovascular System The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.
