The Muscular System

Improved Essays
What is the most important system in our body? We have 17 systems in our body. The muscular system controls walking, talking, sitting, standing, eating and other daily functions that people constantly perform. It also helps maintain posture and circulate blood and substances through the body, among other functions. The muscular system is associated with the activities of the legs, arms and other things, muscles also control facial expressions, movements and respiration.
There are three types of muscles, skeletal smooth and cardiac, skeletal muscles are the only voluntary muscle tissues in the human body. The smooth muscles are found inside organs such as the stomach and the intestines, and in blood vessels. It is called a smooth muscle because
…show more content…
The main reason for the muscular system is movement. The system also has other reasons for being needed. The second purpose is hold the body still and in a certain position, the muscles responsible for holding the body up are the strongest of the muscles and have the most endurance. The other function related to movement is the movement of substances inside the body. The muscles responsible for this are the cardiac and visceral, they normally are moving blood or food from one part of the body to another.The final function of the muscular system is to generate body heat. As the result of a high metabolic rate in our body a lot of excess waste heat. Most of the small muscle contractions in our body are what keep our body temperature. When we exert ourselves more than normal we create a lot of internal body heat which later leads to …show more content…
The cardiac muscle is also an involuntary muscle it is not controlled by the conscious mind. While hormones and signals sent from the brain adjust the rate at which the heart contracts, the muscle stimulates itself to contract. The muscle has a natural pacemaker made of muscle tissues that tell the other muscles when to contract. Because the muscle stimulates its self, it is believed to be autorhythmic or intrinsically controlled. The cardiac muscle has striated cells this means they appear to have light and dark stripes when looked at under a microscope. The protein fibers inside the cells cause the dark and light strands. The muscle cell is very strong unlike the visceral muscle. The cells of the cardiac muscle are branched, the x or y shaped cells connect to make intercalated disks. The intercalated disk help the muscle to withstand high blood pressure and the strain of pumping blood throughout a

Related Documents

  • Improved Essays

    The muscles are a structure in ways that they have myofilaments that form sarcomeres. The sarcomeres form the basic unit of striated muscles that enable the muscles to perform their functions effectively. The fibers making the sarcomeres are made of proteins, and this is the points where muscles contracts and relaxes. The contraction and relaxation of the muscles lead to the movement of the limbs. Energy is required in the allowing the muscles to contract or relax.…

    • 974 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    The muscles of the muscular system keep bones in place; they assist with movement by contracting and pulling on the bones. To allow motion, different bones are connected by joints which are connected to other bones and muscle fibers via connective tissues such as tendons and ligaments. Cartilage prevents the bone ends from rubbing directly on each other. Malnutrition and arthritis are examples of disorders and diseases in the body that can severely impair the function of the musculoskeletal system.…

    • 705 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The cardiac muscle compared to the smooth muscle is also an involuntary muscle. The cardiac muscle is unique in itself because it stimulates itself to contract. The…

    • 1018 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Suspended in between the actin are the thick myosin filaments. When the smooth muscle is stimulated to contract, the myosin filaments will start inching toward the actin, resulting in the shortening of fibers. Essentially, once the mesh-like structure of the smooth muscle cell is activated, it will pull the cell membrane inward. The highest force output is generated when the actin and myosin overlap because there is room to shorten.…

    • 600 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Systems Relationship Assignment 1. Muscular System and Skeletal System The muscular system is dependent on the skeletal system to provide blood cells to the muscles. The blood cells contain oxygen which is converted into ATP during cellular respiration.…

    • 973 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    It contractions of the heart consist of the heart taking blood out of the heart and then relaxes to fill the heart back up with blood (Martini & Nath,2014 p.689-692). Each cardiac muscle fiber is made up of a single nucleus that has the appearance of striated or striped. The appearance is light and dark bands. Dark bands are made up of thick protein filaments that are produced by myosin proteins.…

    • 947 Words
    • 4 Pages
    Superior Essays
  • Improved Essays

    Then there is the Cardiac which is only found in the heart, it is responsible for pumping blood through the body. Lastly there is the smooth muscle which is the type of muscle found in our internal organs, blood…

    • 608 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The muscular system is the system of the body that contains smooth, skeletal, and cardiac muscle tissue. This system contains a variety of functions including movement of the body and of materials throughout the body, maintenance of posture, and heat production. Muscles are the only tissue in the body that have the ability to contract and therefore move the other parts of the body. The muscular system is important because without it, life would completely stop. Muscles produce not only voluntary movements but involuntary movements such as breathing, digestion of food, pumping blood etc.…

    • 639 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Cardiac Muscle

    • 63 Words
    • 1 Pages

    Cardiac muscle: The heart is made of cardiac muscle, and this type of muscle is only found in your heart. Cardiac muscle contracts continuously without ever tiring unlike other types of muscle. It works automatically and constantly without ever stopping to rest. When cardiac muscle contracts it squeezes blood out of your heart, and when it relaxes it fills your heart with…

    • 63 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    These muscles form in pairs and are called voluntary muscles. Smooth muscles are muscles that surround your organs like the stomach and kidney. Smooth muscles are involuntary, which means your brain controls them and tells them what to do; therefore, they work automatically. Cardiac muscle is the heart, this muscle…

    • 250 Words
    • 1 Pages
    Improved Essays
  • Superior Essays

    The skeletal system is important for support, protection of delicate organs, the manufacturing of blood, storage of nutrients, and locomotion as it provides the points of attachment for skeletal muscles (Mader, Windelspecht and Cox, 2014). Meanwhile, the muscular system accounts for a larger percentage of the body 's mass, it requires vast amounts of energy to contract, and is responsible for the movement, maintaining an upright posture, balance, functions such as peristalsis and heat…

    • 1125 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    Fetal Pig

    • 738 Words
    • 3 Pages

    The study of anatomy and physiology. Anatomy is the scientific term for the study of the body structure and physiology is the term for the study of the function of the body’s organs. During the class, we dissected a pig. We did it to compare the human body and its organ systems with the pig body because they are similar in function. We defined each system and the organs that belong to each one.…

    • 738 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The nervous system is affected sometimes more than others depending on the amount of damage. Damage to the nerves can result in numbness, tingly sensations, and pain that can remain permanent. The muscular and nervous system maintain homeostasis as the muscular system helps the nervous system by protecting the nerves where as the nervous system returns the favor by sending messages to the muscles for muscle movement. The main structures of the muscular system are skeletal muscle, smooth muscle, and cardiac muscle; the main functions are to produce movement, maintain posture, stabilize joints, and to generate heat.…

    • 896 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Alzheimer's Disease Essay

    • 1015 Words
    • 5 Pages

    Alzheimer 's disease Alzheimer’s disease is a fatal disease that affects the central nervous system (CNS) and other systems of the body. The CNS includes the brain and spinal cord. The digestive system is affected by Alzheimer 's, this system includes; the mouth with salivary glands and teeth, pharynx, esophagus, stomach, small intestines, large intestines, rectum, and anus. The Urinary system includes the kidneys, ureter, urinary bladder, and the urethra. The neuromuscular system is affected as the disease progresses, this includes the nerves and muscles of the body.…

    • 1015 Words
    • 5 Pages
    Improved Essays
  • Superior Essays

    To understand the Musculo-Skeletal system and how it is suited to the functions that it performs for the body you first need to understand how the system works and what it is responsible for. It is comprised of two separate systems working together as one to provide the body with physical support, the ability to move and protection for its major organs. These two systems are the Skeletal System and the Muscular System and they contain the following:-  Bones of the skeleton  Muscles  Cartilage  Tendons  Ligaments  Joints  Connective tissue binding to the body’s organs If you break the system down into its separate parts you can gain a deeper understanding of how they create a joint working system within the body.…

    • 1062 Words
    • 5 Pages
    Superior Essays