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THE SKELETAL AND MUSCULAR SYSTEM
Bone Tissue
Introduction
• Despite its appearance, bone is a complex and
dynamic living t...
Functions of the skeletal system (bones)
1) Support. Bones serve as the structural framework
for the body supporting soft ...
Next
4) Mineral homeostasis. Bone tissue stores several
minerals especially calcium and phosphorus, which
contribute to th...
Next
6) Triglyceride (human fat) storage. In the
newborn, all bone marrow is red and is
involved in hemopoiesis. However, ...
Ligaments and Tendons
• Ligaments and tendons are soft collagenous
tissues.
• Ligaments connect bone to bone and tendons
c...
9-6
Functions Muscles
• Body movement
• Maintenance of posture
• Respiration
• Production of body heat
• Communication
• C...
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The skeletal and muscular system

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Transcript of "The skeletal and muscular system"

  1. 1. THE SKELETAL AND MUSCULAR SYSTEM Bone Tissue Introduction • Despite its appearance, bone is a complex and dynamic living tissue. The entire framework of bones and their cartilages together constitute the skeletal system. The study of bone structure and the treatment of bone disorder is called osteology.
  2. 2. Functions of the skeletal system (bones) 1) Support. Bones serve as the structural framework for the body supporting soft tissues and providing attachment points for the tendons of most skeletal muscles. 2) Protection. Bones protect internal organs from injury. For example cranial bones protect the brain, vertebrae protect the spinal cord, and the rib cage protects the heart and lungs. 3) Assistance in movement. When skeletal muscles contact, they pull on bones to produce movement.
  3. 3. Next 4) Mineral homeostasis. Bone tissue stores several minerals especially calcium and phosphorus, which contribute to the strength of the bone. Bone can release minerals into the blood stream to maintain critical mineral balances and to distribute minerals to other organs. 5) Blood cell production. Within certain parts of bones a connective tissue called red bone marrow produces red blood cells, white blood cells and platelets by a process called hemopoiesis.
  4. 4. Next 6) Triglyceride (human fat) storage. In the newborn, all bone marrow is red and is involved in hemopoiesis. However, with increasing age, blood cell production decreases, and most of the bone marrow changes from red to yellow. Yellow bone marrow consist primarily of adipocytes and a few scattered blood cells.
  5. 5. Ligaments and Tendons • Ligaments and tendons are soft collagenous tissues. • Ligaments connect bone to bone and tendons connect muscles to bone.
  6. 6. 9-6 Functions Muscles • Body movement • Maintenance of posture • Respiration • Production of body heat • Communication • Constriction of organs and vessels • Heart beat
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