Muscle

The muscle fibers in the presence of ATP contracted 0.07cm and 3.3% change. Under the microscope, figure 1 shows the striated fiber by clearly indicating the bands and lines of the striation. In addition, solution B, with ATP plus Salt (KCl, MgCl2) contracted the muscle fiber by 0.24cm and 9.2% change. Finally, solution C, containing only salt (KCl, MgCl2) also contracted the muscle fiber by 0.13cm and 6.1% change. Figure 2 shows the effect after adding salt and shows the striations of the fiber…

• Muscle tissue: Cardiac and skeletal muscle Cardiac and skeletal muscles have very few similarities and many differences. Firstly cardiac muscles location is found in the heart and the skeletal muscle location is found all over the body in every single bone present in humans. The similarities of cardiac and skeletal to start with is that they are both striated muscle structured, but cardiac is lightly striated and skeletal is heavily striated. Now to describe the differences, initially…

of neurons and muscle is utmost for any animal’s survival. The experiment studies the principles of muscle contractions and nerve conductions, and the characteristics of muscle twitches and AP. The nerve and muscle work in conjunction and allow organisms to be motile. Thus looking at the properties and understanding the process has immense influence on science and the world in general. Through the experiment it was determined that an increase in stimulation amplitude in both muscle and neurons…

How do Fat and Muscle Cells Change due to Exercise? Physical exercise has many health benefits: it reduces stress, as it causes the body to produce endorphins, which allows people to sleep better (1). In turn, sleeping better allows the brain to focus better on tasks it needs to perform. It prevents people from becoming overweight or obese, since it burns calories, and by preventing obesity, it in turn prevents heart diseases and diabetes (2). Many studies have shown that exercise changes how…

Muscle Cramps As a recent victim of severe muscle cramps, I decided to take up the matter as the topic of my extra credit project. Muscle cramps are muscle spasms elongated for indefinite periods of time. Muscles contract involuntarily and forcibly, resulting in mild to intense pain that can last anywhere from seconds to over fifteen minutes. Muscle cramps can appear distorted or feel firmer than its normal, relaxed state. Muscle cramps have the ability to affect any skeletal muscle, whether…

Skeletal muscles are made of three different muscle fiber types. All muscle fibers are having varying amounts of mitochondria in them. Mitochondria helps the muscle be able to manufacture ATP for contraction. To differentiate between the three muscles is based on their make up. Slow oxidative (SO) or type one muscle fibers are composed with the most mitochondria to help them be fatigue resistant. SO muscle fibers stain the darkest because the enzyme targeted by the stain is most abundant in this…

Muscle Memory Muscle memory is the key to each and every motion we do on a daily basis. It is the most underappreciated body function that is used daily. The science of muscle memory is crucial for everyone to understand because it helps people grasp how their muscular system works, prevents adverse effects due to bad form and improper training, and it helps athletes train more efficiently. There are 206 bones in the human body used for shape and support, but these would be useless without the…

The human body is composed of muscle which are responsible for body movement. Muscles in found in the human body attach to the bones of the skeletal system, in a human body there are “700 individual muscles that make up part of a person’s weight and the muscular system. Each of these muscles are separate organ which are made up of skeletal tissues, nerves, blood vessels and muscle tissues. Muscle tissues are found throughout the human body, inside the heart, the blood vessels and the digestive…

Muscles are often only described by large features and classified by a particular region of group of muscles, which does not do the complexity muscle tissue justice. When a skeletal muscle cell is broken down on a microscopic level one is able to truly grasp just how intricate skeletal muscles are along with how they function on a physiological level. Skeletal muscle cells cannot be understood until three key aspects of their structure are enumerated and these are their myofibrils, sarcoplasmic…

This rectangular shaped cell is the Cardiac Muscle cell. Each cell is relatively small, and has one nucleus (sometimes 2) They are connected by microscopic features of the cardiac muscle. This is known as the intercalated discs. These intercalated discs contain cell structures called desmosomes and gap junctions. Compared to skeletal muscle cells, these cells are Y shaped and are a lot shorter and wider. Desmosomes are thick patches in the cell membrane region, usually lying between two…