Cardiac pacemaker

Visceral, Cardiac and Skeletal Muscle. • Visceral Muscle: Visceral muscles are found in the stomach, intestines and blood vessels. Visceral muscles make your organs contract and move substances through the organ. Visceral muscles are an involuntary muscle. It is also known as “smooth muscle” because of its appearance when it is viewed under a microscope. • Cardiac Muscle: Cardiac muscle can only be found in your heart. It is responsible for pumping blood throughout your body. Cardiac muscle is…

skeletal muscle and cardiac muscle tissue Common things between the structures of cardiac muscle and skeletal muscle The skeletal tissue and cardiac muscle tissue both are part of muscle tissue. The cells in cardiac muscle and skeletal muscle are made up of fibres. The fibres in both of these muscles are striated. The fibres in both of these tissue have a similar kind of shape and appearance. Differences between the structures of cardiac muscle and skeletal muscle The cardiac muscle contains…

Whether you are sitting at a desk doing a physiology lab report, or playing a sport in the park, you are constantly using muscles to accomplish those tasks. The fingers that are used to type the lab report rely on individual myofibrils to contract and cause movement. However, this mechanism occurs on a microscopic level, and predominantly in the myofibers. When a motor neuron experiences an action potential it releases acetylcholine to the motor-end plate which binds to a receptor on the…

Do you know what a muscle fiber is? A muscle fiber is a single muscle tissue cell. There are three types of muscles. The skeletal, visceral, and cardiac. The skeletal muscles are voluntary, while the visceral muscles are involuntary. In this essay, I will be explaining muscles. There are many interesting facts about the muscles. Muscles are the "engine" that your body uses to propel itself. Did you also know that there are three primary muscle fiber types in humans? Type I, Type IIA, Type…

Cardiac Muscle fibres are long cylinder shaped cells that usually have one or two nuclei, they are centrally located within the cell. The end of the fibres are split into a number of small branches in which the ends of which connect to similar branches of adjacent cells giving a three dimensional cytoplasmic connection network throughout the tissue. In between the muscle fibres, there is a delicate connective tissue, similar to the endomysium of the skeletal muscle which supports the extremely…

Muscles work in pairs. one muscle contracts and pulls on the bones to which they are attached, in other word, Tendons which are fibrous connective tissue, muscle are attached to bones by tendons. The muscles contract to allow movement, while the skeletal gives the muscles support. The muscles and bones move together, basically with the muscles contracting the bones. The bone can not move back to its original state until another muscle pulls on it. Muscles work together to produce movement by…

The three types of muscle tissue are smooth, skeletal, and cardiac muscles. Smooth muscle tissue is a tissue in organ and blood vessel walls. It is involuntary and has spindle-shaped cells for pushing things through organs. The skeletal muscle is found in large body muscles. It is voluntary and is packed in bundles and attached to bones for movement. The cardiac muscle is involuntary and is found in the heart wall. It is a striated muscle with intercalated discs…

5. Normal muscle contraction occurs in a series of steps, and they are as follows: First, a motor neuron must have acetylcholine released in the synaptic cleft. The acetylcholine is then able to bind with receptors found in the cell membrane. This binding causes the Ca+/Na+ channels to open. The terminal cisternae then releases calcium into the muscle fiber. Calcium will begin to bind to troponin. The troponin moves tropomyosin out of the way since it blocks the actin’s active site. Next, actin…

health. Following the policy by the British Heart Foundation Lisa would be advised to engage in more physical exercises this helps reduce the risk of having another heart attack. When Lisa got discharged back to the community she was referred to the cardiac rehabilitation…

Usain bolt is the fastest man in the world using a lot of force to propel him self over the finish line in record times even though his hight isn't the ideal hight to be a sprint he needs to be faster than any of the other athletes. When usain bolt runs he puts a massive amount of force into the ground. With each quick stride he takes he generates a huge amount of force.the ground produces the same amount of force to propel bolt forward. Usain would need more force to propel him forward because…