https://padlet.com/aper0860/sxd117a7u36h en-us 2018-10-25 13:32:14 UTC 2026-02-23 10:01:58 UTC hello@padlet.com aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296926858 a flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.]]> 2018-10-25 13:36:09 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296926858 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296927265 a thin sheath of fibrous tissue enclosing a muscle or other organ]]> 2018-10-25 13:36:43 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296927265 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296928084 The muscular system is an important part of the human bodies. Below are some of the functions: 

• The muscular system creates movement. The primary function of muscular system is to produce voluntary gross and fine movements. It protects the organs. ...
• The cardiac muscle pumps blood. ...
• Smooth muscle aids digestion. ...
• Smooth muscle ensures blood flow.

]]> 2018-10-25 13:37:52 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296928084 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296931907 Muscle fatigue is the decline in ability of a muscle to generate force. It was once believed that lactic acid build-up was the cause of muscle fatigue. ... Though the impact of lactic acid on performance is now uncertain, it may assist or hinder muscle fatigue.]]> 2018-10-25 13:43:16 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296931907 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296933219 a sudden involuntary muscular contraction or convulsive movement. Spasms can affect many different types of muscles in the body, leading to many different symptoms. Spasms of skeletal muscles are most common and are often due to overuse and muscle fatigue, dehydration, and electrolyte abnormalities. ]]> 2018-10-25 13:45:08 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296933219 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296934504 In the tonic phase the body becomes entire rigid, and in the clonic phase there is uncontrolled jerking. Tonic-clonic seizures may or may not be preceded by an aura, and are often followed by headache, confusion, and sleep. They may last mere seconds, or continue for several minutes. Also known as a grand mal seizure.]]> 2018-10-25 13:46:49 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296934504 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296935379 Its a rare type of seizure. The onset of generalized tonic-clonic seizures could be caused by a variety of health conditions. Some of the more severe conditions include a brain tumor or a ruptured blood vessel in your brain, which can cause a stroke.]]> 2018-10-25 13:48:01 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296935379 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296936557 a bacterial disease marked by rigidity and spasms of the voluntary muscles. Spores of the bacteria that cause tetanus, Clostridium tetani, are found in soil, dust and animal feces. When they enter a deep flesh wound, spores grow into bacteria that can produce a powerful toxin, tetanospasmin, which impairs the nerves that control your muscles ]]> 2018-10-25 13:49:19 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296936557 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296937904 a condition marked by intermittent muscular spasms, caused by malfunction of the parathyroid glands and a consequent deficiency of calcium. Most often, it's a dramatically low calcium level, also known as hypocalcemia. Tetany can also be caused by magnesium deficiency or too little potassium. Having too much acid (acidosis) or too much alkali (alkalosis) in the body can also result in tetany]]> 2018-10-25 13:51:02 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296937904 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296939381 Organs are made out of this type of muscle. The organ muscle is involuntary, the organs working without making it do it. This muscle is not voluntary, it's only involuntary. ]]> 2018-10-25 13:52:40 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296939381 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296943317 The muscle that makes up the heart is called cardiac muscle. It is also known as the myocardium. The thick muscles of the heart contract to pump blood out and then relax to let blood back in after it has circulated through the body. This muscle is involuntary. ]]> 2018-10-25 13:57:07 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296943317 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296944798 It is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. Provides motion and posture. ]]> 2018-10-25 13:58:50 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296944798 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296946139 The sliding filament theory is the explanation for how muscles contract to produce force. A proposed mechanism of muscle contraction in which the actin and myosin filaments of striated muscle slide over each other to shorten the length of the muscle fibres. The sliding filament theory explains the mechanism of muscle contraction based on muscle proteins that slide past each other to generate movement.]]> 2018-10-25 14:00:30 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296946139 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296948258 a protein that forms (together with myosin) the contractile filaments of muscle cells, and is also involved in motion in other types of cells. Actin is a family of globular multi-functional proteins that form microfilaments. It is found in essentially all eukaryotic cells, where it may be present at a concentration of over 100 μM. ]]> 2018-10-25 14:02:58 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296948258 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296949093 a fibrous protein that forms (together with actin) the contractile filaments of muscle cells and is also involved in motion in other types of cells. Myosins are a superfamily of motor proteins best known for their roles in muscle contraction and in a wide range of other motility processes in eukaryotes. Myosin is a special protein that converts adenosine triphosphate (ATP), a molecule that cells use in order to live and work, into mechanical energy]]> 2018-10-25 14:04:05 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296949093 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296950339 Muscles contract through a process known as the sliding filament theory. Upon nervous system excitation for a contraction, calcium is released into the fiber. It binds with troponin and stimulates it to move tropomyosin, exposing the binding site for the myosin crossbridge.  It usually happens after an injury to a large muscle.]]> 2018-10-25 14:05:48 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296950339 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296953057 Contractility is the ability of muscle cells to forcefully shorten. ... Elasticity is the ability to recoil or bounce back to the muscle's original length after being stretched. It stops when muscles relax. ]]> 2018-10-25 14:09:21 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296953057 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/296954706 Extensibility is ability of muscle to stretch or get longer. Contractility is the ability of muscle cells to forcefully shorten. For instance, in order to flex (decrease the angle of a joint) your elbow you need to contract (shorten) the biceps brachii and other elbow flexor muscles in the anterior arm.]]> 2018-10-25 14:11:41 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/296954706 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/297374512  It's the ability of tissue to regain its original shape and size after being stretched, squeezed, or otherwise deformed. Tendons can recoil elastically much faster than muscles can shorten.  Tendon elasticity affects the control of muscles]]> 2018-10-26 13:26:40 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/297374512 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/297375827 Excitability is the ability to respond to a stimulus, which may be delivered from a motor neuron or a hormone. It's capable of being readily roused into action or a state of excitement or irritability. Cardiac muscle has this type of muscle. ]]> 2018-10-26 13:28:51 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/297375827 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/297378256 Automaticity: ability to contract without direct stimulation by nervous system. The heart automaticity is a fundamental physiological function in higher organisms. The spontaneous activity is initiated by specialized populations of cardiac cells generating periodical electrical oscillations.]]> 2018-10-26 13:32:58 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/297378256 aper0860 https://padlet.com/aper0860/sxd117a7u36h/wish/297379498 It's stiffening of the joints and muscles of a body a few hours after death, usually lasting from one to four days. It's the third stage of death. It is one of the recognizable signs of death, caused by chemical changes in the muscles post mortem. ]]> 2018-10-26 13:35:13 UTC https://padlet.com/aper0860/sxd117a7u36h/wish/297379498