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Level 4

Chapter 4: The Human Body

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Vital organs
Such as the brain, heart and lungs are essential for life
Circulatory system
Consists of the heart, blood and bloody vessels. This system keeps all parts of the body supplied with oxygen-rich blood.
Anatomical position
The person stands with body erect and arms down at the sides
Supine position
The person is lying face up on his or her back
Prone position
The person is lying face-down on the left or right side
Right and left lateral cucumberent position
The person is lying on the left or right side
Fowler's position
The person is lying on his or her back, with the upper body elevated
Cranial activity
Located in the head and is protected by the skull. Contains the brain
Spinal activity
Extends from the bottom of the skull to the lower back
Thoracic activity (chest activity)
Located in the trunk between the diaphragm and the neck, and contains the lungs and the heart.
Abdominal activity
Located in the trunk below the ribs, between the diaphragm and the pelvis
Musculoskeletal system
A combination of two body systems, the muscular and skeletal systems, and consists of the bones, muscles, ligaments and tendons.
The musculoskeletal systems performs the following:
Supports the body, protects internal organs, allows movement, stores minerals, produces blood cells, produces heat
Skeletal muscles
Muscles that are under the control of the brain and nervous system. These muscles help give the body its shape and make it possible to move when we walk, smile or talk
Smooth muscles
Muscles that are made of longer fibers and are found in the walls of tube-like organs, ducts and blood vessels. Forms much of the intestinal wall.
Cardiac muscles
Muscles that control the heart
Places where bones connect to each other
Strong, touch bands that hold the bones at the joint together
Respiratory system
Delivers oxygen to the body and removes carbon dioxide from it
Circulatory system
Consists of the heart, blood and blood vessels. It is responsible for delivering oxygen, nutrients, and other essential chemical elements to the body