Muscular System by Harjas Chadha https://padlet.com/k1210513/gcp38fy6d410ryg2 en-us 2021-10-14 18:02:05 UTC 2021-10-19 18:06:35 UTC hello@padlet.com Tendon k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1817882542 Tendons are narrow bands of non elastic, dense fibrous connective tissue that attaches muscle to bones. The tendons and muscles work together to control joint movement. The calcaneal tendon, commonly known as the Achilles tendon, is the strongest and largest tendon of the human body. 

]]> 2021-10-14 18:17:18 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1817882542 Fascia k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825033326 The fascia is a sheet of fibrous connective tissue that covers, supports, and separates muscles or muscle groups. This is flexible in order to allow movement. The fascia is found beneath your skin. ]]> 2021-10-18 18:40:24 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825033326 5 Basic Functions of the Muscular System k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825328632 1. Muscles hold the body erect. 
2. Muscles make movement possible. 
3. Muscles move food through the digestive system.
4. Muscle movement aids the flow of blood through the veins.
5. Muscles actions move fluid through the ducts and tubes associated with other body systems.

]]> 2021-10-18 21:15:00 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825328632 Muscle Fatigue k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825335061 Muscle Fatigue is a state of exhaustion or loss of strength and/or muscle endurance following strenuous activity associated with the accumulation of lactic acid in muscles. Muscle Fatigue happens when you do strenuous exercises. This in turn causes you to have pain and feel weaker.  ]]> 2021-10-18 21:19:42 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825335061 Spasm k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825337200 A spasm is a sudden involuntary muscular contraction or convulsive movement. Spasms occur when you are stressed or have anxiety. You can alleviate pain from muscle spasms by taking a NSAID , such as ibuprofen. ]]> 2021-10-18 21:21:16 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825337200 Clonic Vs Tonic Muscle Spasms k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825351531 Clonic spasms refer to alternating involuntary muscular contraction and relaxation in quick succession while tonic spasms are rigid muscle contractions that last a period of time. They both are involuntary muscle spasms so they are contractions of the muscles in the body that occur without control.
          ]]> 2021-10-18 21:31:00 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825351531 Tetanus k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825356812 Tetanus is a bacterial disease marked by rigidity and spasms of the voluntary muscles. The spores can get into the body through broken skin, usually through injuries from contaminated objects. Tetanus affects the nerves that control your muscles, which can lead to difficulty swallowing. You may also experience spasms and stiffness in various muscles, especially those in your jaw, abdomen, chest, back, and neck.


                                                                                            


]]> 2021-10-18 21:35:03 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825356812 Tetany k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825361065 Tetany is a symptom characterized by the involuntary contraction of muscles that leads to painful muscle cramps, spasms of the voice box (i.e., larynx), and sensory disturbances. It is most commonly associated with low blood calcium levels, or hypocalcemia, although it can also appear with other metabolic irregularities. Mild symptoms include numbness around the mouth, painful muscle cramps, and a burning or tingling sensation of the hands and feet, known as paresthesia. In severe cases, individuals may present with spasms of the voice box (i.e., laryngospasm), which can make breathing difficult and lead to high-pitched sounds while breathing (i.e., laryngeal stridor). Individuals with tetany may also experience vomiting, generalized muscle cramps, seizures, and decreased cardiac function, such as an irregular heart rhythm. 


]]> 2021-10-18 21:38:04 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825361065 Smooth Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825366724 Smooth Muscle is located in the wall of internal organs such as the digestive tract, blood vessels, and the ducts leading to the glands. They have narrow tapered rod shaped cells that are non striated, unnucleated. The fibers are found  in the walls of internal organs and the blood vessels. The smooth muscles are involuntary muscles. ]]> 2021-10-18 21:42:15 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825366724 Cardiac Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825372290 The Cardiac muscle forms the muscular walls of the heart. The Cardiac muscles have striated, lobular, branched, and unnucleated cells. The fibers are found  in the heart. Cardiac Muscles are involuntary. ]]> 2021-10-18 21:46:36 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825372290 Skeletal Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825376837 The Skeletal muscle attaches to the bone and makes body movement possible. The cells look striated, tubular, and multinucleated. The fibers are usually attached to the skeleton. The Skeletal muscle is voluntary. ]]> 2021-10-18 21:50:19 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1825376837 Sliding Filament theory of muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827321938 The sliding filament theory describes the mechanism that allows muscles to contract. According to this theory, myosin binds to actin. The myosin then alters its configuration, resulting in a "stroke" that pulls on the actin filament and causes it to slide across the myosin filament. ]]> 2021-10-19 14:11:19 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827321938 Actin k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827341614 a protein that forms the contractile filaments of muscle cells, and is also involved in motion in other types of cells. Actin filaments are made up of identical actin proteins arranged in a long spiral chain. ]]> 2021-10-19 14:16:31 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827341614 Myosin k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827356449 Myosin is the prototype of a molecular motor—a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement. Myosins belong to a family of motor proteins in muscles to enable muscle contraction. They may also be present in other cells such as amoebae and macrophages as a motor protein involved in different motility processes. Their fundamental properties include capability to bind with actin and ATPase enzyme activity. ]]> 2021-10-19 14:20:14 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827356449 Calcium in the Muscles k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827370616 Calcium affects muscles by regulating contractions. This includes regulating the heart beating because the heart is a muscle that pumps blood. Calcium is released when a nerve stimulates a muscle. ]]> 2021-10-19 14:24:00 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827370616 Contractility of Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827389032 Contractility is the ability of the muscle to shorten. Contractility allows muscle tissue to pull on its attachment points and shorten with force. Muscles can only pull, never push. ]]> 2021-10-19 14:28:33 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827389032 Extensibility of Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827404503 Extensibility is the ability of the muscles to be stretched or extended. For example, let's consider our elbows  flexing motion. In order to be able to flex the elbow, the elbow extensor muscles must extend in order to allow flexion to occur. Lack of extensibility is known as spasticity.]]> 2021-10-19 14:32:39 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827404503 Elasticity of Muscles k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827421420 Elasticity is the ability of a muscle fiber to recoil and resume its resting length.
Examples of activities that use a stretch or reflex of the muscle and also store elastic energy to produce dynamic movement are jumping activities. Activities that develop elastic strength for running are hopping, bounding and jumping.]]> 2021-10-19 14:37:03 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827421420 Excitability of Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827440870 Excabiltity is the ability of the muscle to receive and respond to stimuli via generation of an electricial pulse which causes contraction of the muscle cells. 
They get excited due motor neurons or  hormones ]]> 2021-10-19 14:42:11 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827440870 Automacity of Muscle k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827451096 Automacity is the ability to spontaneously depolarize and generate an action potential. Examples of automaticity are common activities such as walking, speaking, bicycle-riding, assembly-line work, and driving a car.]]> 2021-10-19 14:44:57 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827451096 Rigor Mortis k1210513 https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827460632 Rigor mortis is a postmortem change resulting in the stiffening of the body muscles due to chemical changes in their myofibrils. Rigor mortis helps in estimating the time since death as well to ascertain if the body had been moved after death. ]]> 2021-10-19 14:47:29 UTC https://padlet.com/k1210513/gcp38fy6d410ryg2/wish/1827460632