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    • 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).
  1. The skeletal system is made from bones and joints. The femur bone in the thigh is the longest and strongest bone in the body. The smallest bones in the body are called the...

    • Cardiovascular system. The heart and blood vessels make up this system. The heart is a pump forcing blood into a network of blood vessels allowing it to travel to organs and delivery sites requiring oxygen gas for respirationnutrients and the removal of waste substances.
    • Digestive system. This system resembles a long tube with attached organs. Ingested food is broken down into constituent nutrient molecules that are then absorbed into the bloodstream.
    • Endocrine system. Composed of a number of small organs distributed throughout the body, the endocrine system coordinates the metabolic activity of body cells by interacting with the nervous system.
    • Excretory system. The excretory system is composed of the kidneys (urine-forming organs), the bladder (temporary storage for urine) and channels for moving this liquid waste around.
  2. Aug 30, 2023 · List and describe the functions of bones. Describe the classes of bones. Discuss the process of bone formation and development. Explain how bone repairs itself after a fracture. Discuss the effects of exercise, nutrition, and hormones on bone tissues.

  3. Apr 21, 2024 · Bone Structure. From a histological perspective, bones are highly specialized connective tissues that can remodel based on exogenous demand. The cell primarily responsible for building bones is the osteoblast, which secretes a collagen-rich fluid known as osteoid.

    • 2024/04/21
  4. How do the bones of the human skeleton move? Skeletal muscles contract and relax to mechanically move the body. Messages from the nervous system cause these muscle contractions. The whole process is called the mechanism of muscle contraction and it can be summarized in three steps:

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  6. The skeletal system is the body system composed of bones, cartilage, and ligaments and performs the following critical functions for the human body: supports the body; facilitates movement; protects internal organs; produces blood cells; stores and releases minerals and fat; Support, Movement, and Protection

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