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  1. Sep 21, 2024 · The human body consists of trillions of cells, each capable of growth, metabolism, response to stimuli, and, with some exceptions, reproduction. Although there are some 200 different types of cells in the body, these can be grouped into four basic classes.

    • The Editors of Encyclopaedia Britannica
  2. 4 days ago · The skeletal system in an adult body is made up of 206 individual bones. These bones are arranged into two major divisions: the axial skeleton and the appendicular skeleton. The axial skeleton runs along the body's midline axis and is made up of 80 bones in the following regions: Skull. Hyoid.

  3. Sep 27, 2024 · The skeletal system comprises 206 bones and has two main parts: the axial skeleton and the appendicular skeleton. The skeletal system includes your bones, ligaments that attach bone to bone, and cartilage that provides padding between your bones.

  4. 4 days ago · The muscular system is responsible for the movement of the human body. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a person's body weight. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves.

  5. Sep 25, 2024 · anatomy, a field in the biological sciences concerned with the identification and description of the body structures of living things. Gross anatomy involves the study of major body structures by dissection and observation and in its narrowest sense is concerned only with the human body.

    • The Editors of Encyclopaedia Britannica
  6. Sep 25, 2024 · In humans it is situated between the two lungs and slightly to the left of centre, behind the breastbone; it rests on the diaphragm, the muscular partition between the chest and the abdominal cavity. The heart consists of several layers of a tough muscular wall, the myocardium.

  7. en.wikipedia.org › wiki › AnatomyAnatomy - Wikipedia

    2 days ago · The segments of the body are organized into three distinct parts, a head, a thorax and an abdomen. [52] The head typically bears a pair of sensory antennae, a pair of compound eyes, one to three simple eyes and three sets of modified appendages that form the mouthparts.

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