BG710: The Skeletal System

OVERVIEW

In today’s class, we will study the bones of the skeletal system. You will learn the location, function, and names of the major bones in your body, from your head to your toes.

Imagine what your body would look like without your skeleton.

Your skeleton does many things for you.

• It gives your body shape and supports your weight.
• It helps you move.
• It protects your organs.
• It makes red and white blood cells.
• It stores vitamin D and calcium which keep bones healthy.

Almost every human skeleton has 206 bones.

Bones, cartilage, ligaments, and tendons make up the skeletal system.

Bones are the main part of the skeleton. They are very strong but also lightweight. Bones provide structure for the body, make blood cells, and protect important organs, such as the heart and lungs.

Cartilage is the main type of connective tissue in the skeleton. It is found at the end of bones between joints, at the end of the ribs, between the bones of the spine, and in the lungs, ears, and nose.

Ligaments act like ropes that connect one bone to another at the joint to provide stability and enable movement.

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Tendons are cords of strong, flexible tissue that connect bones to muscles, enabling movement of the limbs.

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JOIN A GAME

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the nervous system

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The somatic nervous system controls skeletal muscles through nerves that come out of the brain and off the spinal cord.

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Based on their location, the nerves of the somatic nervous system are either cranial nerves or spinal nerves.

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Cranial nerves come from the brain and affect the bones of the face and neck.

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Spinal nerves originate from the spinal cord and affect the bones from below the neck to the toes.

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Why didn’t the skeleton go to the dance? Click on the skeleton for the answer.

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JOIN

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Because he had no body to dance with.​