Cardiac Muscle

The cardiac muscles are the muscle of the heart itself. The cardiac muscle is the tissue that makes

The Myocardium is made up of specialised cardiac muscle, only found in the heart and is not under voluntary control.

There are three main types of muscle tissue in the body: Skeletal muscle, smooth muscle and cardiac muscle. Firstly, skeletal muscle has a stripped appearance when it is examined under a microscope so it is sometimes known as striated/stripped muscle. Skeletal muscle is voluntary and this means that it is under conscious control. Secondly, there is smooth muscle which is an involuntary muscle that operates without any conscious control. This muscle is controlled by the nervous system. Smooth muscle can be found in the blood vessels and the walls of the digestive system and it helps to control digestion and blood pressure. Lastly, there is cardiac muscle which is located in in the wall of the heart. Cardiac muscle is involuntary and this means that it is not under conscious control. This is made up of a specialised type of tissue which is striated and it has its own blood supply. The contractions aid the pumping of blood through the blood vessels

These muscle tissue cells specialised to contract and move parts of the body. It is also capable of responding to stimuli. There are three types of muscle in the body such as: skeletal, cardiac and smooth. Each muscle is created of muscle fibers that are capable of contracting and returning back to original state-relaxation. Contraction causes movement of the skeleton, soft tissue, blood or specific material. Skeletal muscle is attached to the bones of the skeleton. Some facial muscles are attached to the skin. They have direct control over them through nervous impulses from our brain sending messages to the muscle. Contractions can vary to produce fast, powerful movements. These muscles also have the ability to stretch and contract to return to original shape. Cardiac muscles are found in the chambers of the heart such as the atria and ventricles. It is under the control of the automatic nervous system; however, even without nervous input contractions can occur. It is completely different to all the other muscles. Smooth muscles are also known as involuntary due to our inability to control its movement. This muscle is usually found in the walls of hollow organs

There are three types of muscle; skeletal (also known as striated), smooth, and cardiac. Skeletal muscles move the bones, cardiac muscle is found in the heart, and smooth muscles line the organs and blood vessels . Although different in function, the basic structure of each type is similar . The experiment for this investigation was conducted using skeletal muscle, as it is common and easy to access when fresh. Meats that were bought from the butcher were used as they are skeletal muscle.

In cardiac muscle, a single nucleus is located in the middle of each fibre. The brain tissue also has a nucleus which is located in the middle of cell body. The cardiac muscle and brain tissue don’t have the exact same function. The cardiac muscle and the brain tissue don’t work together because the cardiac muscle doesn’t takes any instructions from the brain tissue (Neurones). This means that the cardiac muscle contracts automatically.

10. two of the main types of muscle tissue correspond with muscles that are involuntary, they are cardiac muscle, which includes the heart. Smooth muscle, which is also involuntary, and includes the stomach, intestines, uterus, urethra, bladder, and blood vessels. The Skeletal muscles are voluntary, they’re attached to the bone and are used to affect skeletal movement.

Muscle is formed with a long and thin tissue called muscle tissue which moves the organs and organisms, and the muscle tissue is made out of a group of cells called the muscle fibers. There are three types of muscle: skeletal muscle, smooth muscle, and cardiac muscle. Skeletal muscle is the muscle who moves the bones, it has much longer fibers than the smooth muscles. Smooth muscle forms the walls of organs, for example, the wall of a stomach. Cardiac muscle is the muscle that forms the heart. From the cross-section view of a muscle, it shows that there is a layer of muscle sheath around the outermost layer of the muscle. The blood vessels that brings glucose and oxygen to the muscle are weaved in the fibers, and there is a layer of epithelial cells around the muscle to keep the fibers together.Muscle tissue can repair itself, but with round scar tissue instead of long, stretchy fibers. Skeletal

Smooth muscles are found in the skin, internal organs, reproductive system, major blood vessels, and excretory system. Skeletal muscles are composed of long fibers surrounded by a membranous sheath, the sarcolemma. Since the Skeletal muscles are under control by whom ever they belong to are called voluntary muscles. This muscle is attached to two or more bones which are then attached to the skeleton by tendons. For example, head and neck muscles; contraction of these muscles produces facial expressions and head movements. They are also responsible for speech and swallowing. Skeletal muscles are the main muscles which move your body. Muscles nearly always work in coordinated groups; contraction of one muscle is accompanied by relaxation of another, while other muscles stabilize nearby joints. Then the last of the muscle types is the Cardiac Muscle or the involuntary muscles. Cardiac muscles are not under conscious control they do not react by a persons decision or movement. and are connected to the nervous system which are stimulated by autonomic impulses. Cardiac muscles are found in your internal organs like the heart or the intestine. For example; they include muscles that propel food through the intestine and those that control sweating and blood pressure.

If Nurse Hathaway gave a patient suffering from dehydration distilled water, she was setting him up to die. According to the basic rules of osmosis, “water chases the solutes”, meaning the water is going to diffuse into areas with more solutes than where it is now. Usually patients who are being treated of dehydration are given a saline solution where there is about the same number of solutes in both the solution and inside the cells so there isn’t any drastic water movement into or out of the cell. Distilled water is completely free of all solutes, so when Nurse Hathaway gave this patient distilled water, she was giving him a solution that has a solute concentration that was much less that what is inside of the person’s cells. This would be referred to as a hypotonic reaction, where the water would end up chasing the solutes into the cell and making the cells fill with water. After a while, the water would rush into all of the cells in this patient and make them grow so large until they burst. This is a major problem that is hard to reverse, even if she would have caught it early, because the amount of liquids they use to restore a person in dehydration is very high. Sooner or later all of his cells would start burst and not function anymore, which will make his body start to shut down. Specifically, red blood cells are found in a

The body’s ability to adapt to changing conditions is a constant endeavor. Maintaining during intense change causes the body to adjust rapidly. The cardiovascular system’s ability to adapt during exercise has numerous adjustments to counteract the body’s newly acquired needs. The heart is capable of altering many functions such as stroke volume, heart rate, and cardiac output. In addition the heart can also undergo hypertrophy and increase in size. Cardiac hypertrophy occurs when the heart becomes stressed. Analyzing the causes of stress, and the heart’s ways of adapting we will explore the how cardiac hypertrophy is a relatively simple disorder which with knowledge can be prevented.

The heart is a hollow muscular organ. The heart's job is to pump blood through the entire body. This job is important because blood carries oxygen and nutrients from the foods you eat to all the cells of the body. It also carries waste products away from your cells.

The heart is responsible for moving the body’s blood, and is primarily composed of cardiac muscle. Similar to skeletal muscle, the cells are

Another difference is the fact they have different lengths, the skeletal muscle is much longer than the cardiac muscle. This is because when cell

While contraction in skeletal muscle is triggered by motor neurons under central control, certain cardiac muscle variants exhibit autorhythmicity. This means that that they are capable of producing their own depolarizing electrical potential. The cardiomyocytes that are capable of producing their own electrical potentials are found in what is referred to as the electrical condition system of the heart. This system is comprised of specializes cardiomyocytes that are autorhythmic and are able to conduct electrical potentials rapidly. These specialized structures include the sinoatrial node, atrioventricular node and bundle, and Purkinje fibers.