Skeletal/Muscular System
Latest Contributing Articles
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Muscles of the Female Pelvic Floor
The female pelvic floor is a complex arrangement of layered muscles.
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Functions of Bone - Skeletal System Physiology
The skeletal system supports and protects the body, creates blood cells, and stores and releases calcium.
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Plantar Fasciitis – A Painful Affair
Plantar fasciitis is a condition that causes long-lasting foot pain for many people. Here are the causes and treatment methods.
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The Spinal Column
The center axis of the body is the spinal column, 26 bones encasing the spinal cord and
defining the entries and exits for many nerves in and out of the nervous system.
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Muscles of Inspiration
The respiratory diaphragm is the primary muscle of inspiration, but an array of other muscles also work to enable the lungs to expand.
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Bony Anatomy of the Pelvis and its Joints
The pelvis isn't a solid block - it's a complex, finely balanced structure with several distinct bones and five different joints.
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Testing Scapulohumeral Rhythm
Good scapulohumeral rhythm is important for proper shoulder mechanics.
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What Is A Muscle Cramp?
Muscle cramps are involuntary, very painful and can last from a few seconds to a few minutes. Here are some potential causes of cramps and how to ease the pain of one.
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Anatomy of the Rotator Cuff
These four muscles play a central part in shoulder stability and movement.
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Bony Anatomy of the Shoulder Girdle
The shoulder girdle is an area with complex anatomy, several joints, and a unique bony structure.
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How Does The Human Eye Move?
For the human eye to function and move correctly, six muscles must work in unison to provide three-dimensional vision.
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Human Skeletal Joints are Mostly Freely-Moving
Joints in the human body are categorized by their structure or the way they move.
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Bone Structure and Growth
Bone's amazing structure allows for strength as well as flexibility and must be constantly rebuilt, even in adulthood.
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The Mechanics of The Neck and Skull
The bones of the skull form the structure of the face and are arranged to safeguard the fragile tissues of the brain and spinal cord.
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How Does Muscle Contract?
When muscle is told to contract a specific series of events take place, leading to specialized proteins gripping onto each other and forcibly sliding one past the other.
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Muscle and Tendon Work Together
When skeletal (voluntary) muscles contract they can exert force because they act through the tendons which connect them to bone, most often across a joint.
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Muscle Contraction Types
When actomyosin complexes inside skeletal muscle are instructed to contract, they generate force. But the muscle itself does not necessarily shorten when it does work.
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How Do Nerves Activate Muscle
Motor nerves release acetylcholine to make skeletal muscle contract. Activation of acetylcholine receptors in muscle causes ionic flux that ends with muscle contraction.
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Different Types of Skeletal Muscle
The human body has more than 600 skeletal (or voluntary) muscles. They can be subdivided into groups dependent on whether they contract rapidly or slowly.
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The Neuromuscular Junction
Motor neurons in your spinal cord tell your muscles to contract by utilizing the function of a specialized communication structure, the neuromuscular junction (NMJ).
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