Cardiac muscle

It has been noted that during breeding season, sharks will fast for an extended amount of time, and live off of lipids stored in their livers. Sharks do not necessarily require mating in order to reproduce, this type of reproduction is referred to as “parthenogenesis”. Shark’s senses are highly developed, most particularly their sense of smell which allows them to detect a subtle smell to its exact source. Shark’s sense of sight and hearing, although not quite as developed as their sense of…

Duchenne’s muscular dystrophy Duchenne’s Muscular Dystrophy Zachary Uecker Genetic Disease Abstract Duchenne’s muscular dystrophy is a genetic disease that targets skeletal muscles and over time, the muscles lose protein and are replaced by fats and connective tissue, making the skeletal muscles unusable. In this paper, the parts of Duchenne’s that will be covered are the method of transmission, statistics about Duchenne’s in the population, the pathophysiology, the body systems…

describes a family of heart diseases affecting the heart muscle resulting in structural and functional abnormalities. (NICOL BOOK). In DCM a portion of the myocardium in the ventricles is dilated leading to progressive cardiac enlargement and hypertrophy. (cite cardiac book) Peter had a familial history which was compounded by alcohol misuse which further depresses myocardium function. (nicol) Untreated this leads to heart failure, cardiac arrhythmias including Atrial Fibrillation and…

Every year, thousands of people, mostly young children, are affected by the neuromuscular disease Muscular Dystrophy. There are many different types of Muscular Dystrophy and they differ based on which muscles are affected and what the causative protein in the body is. Muscular Dystrophy was first introduced to us in 1830 by Sir Charles Bell, who wrote of an illness that caused a great amount of weakness in young boys. Years later, a French neurologist by the name of Guillaume Duchenne…

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 connecting cells…

Duchenne Muscle Dystrophy Introduction: “Muscular Dystrophy is a group of muscle diseases that weaken the musculoskeletal system. Muscle Dystrophies are characterized by muscle weakness, defects in muscle proteins and the death of muscle cells and tissue. Duchenne Muscular Dystrophy is one of many types found and it passed down through the X chromosome. DMD is one of the most common muscle diseases found in early childhood. 1 in 3500 boys are born with DMD however very rarely affects girls…

moves along it tracks toward the positive end. It is also the major component of skeletal muscle thick filaments and thus, is involved in muscle contraction. The disease that is going to discuss is related to muscle contraction, called Myosin Storage Myopathy (also known as hyaline body myopathy). The characteristic or symptom of this disease is the weakness of the muscles that does not get worse or the muscles become much weaker as the time goes by. What Armel and Leslie find out is that it’s…

that do different things: Epithelial, Connective,Muscle and Nervous. For example, the essential functions of epithelial tissues are secretion, absorption, protection, filtration, and excretion. Epithelial tissues are full of sensory receptors that play an important role in the way our bodies react to the environment. Another major tissue is the connective tissue, which functions include binding support, protection, insulation, and transportation. Muscle tissue is as well a major tissue, and its…

Hypertrophy means that the muscles size will increase. Hypertrophy happens when the amount contractile proteins (Actin & Myosin) increase inside the muscle cells so the way in which the can contract is far greater.the amount of fibres in the muscles remain the same mount. Statistically males have a greater chance in muscle bulk due to higher levels of the hormone testosterone. As it relates to skeletal muscle, hyperplasia defines muscle growth due to an increase in the quantity of muscle…

The physiological barriers are largely due to cardiorespiratory systems ability to transport oxygen to the muscles during exercise and is widely accepted as the the fundamental element to the Vo2 MAX (Robergs and Keteyian, 2007). The reasons behind the limiting factors of the cardiorespiratory system is believed to be due to the ability of the maximal cardiac output, pulmonary diffusion and blood volume and flow that the body can handle (Bassett,…