Muscular dystrophy

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…

Mastication is an unconscious lateral and adduction motion that is organised by the motor program, which is then controlled by the central nervous system. (1) Nonetheless, the motions of swallowing and chewing can be adjusted, as the type of food that is being consumed (e.g. brittle, tough) solely contributes to it. (2) Furthermore, mastication constitutes the aid in the mechanical breakdown of food into minor particles, then movements in teeth, digestive enzymes and four bilateral muscles…

Question #10 The abdominal wall consists of four muscles; Rectus abdomens, external obliques, internal obliques and transverse abdominals. Abdominal muscles serve a dual function of both producing and preventing motion as they promote the stability of the pelvis and lower back. This helps maintain a neutral pelvis and optimal lumbar curve. The primary movements of the abdominals are flexion, rotation, lateral flexion, anti-lateral flexion, and stabilization. The rectus abdominis is a long…

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…

Veronica Manarang Med 2047 Carpal Tunnel Syndrome Instructor Michelle Earixson-Lamothe 3/12/2015 VNFT031 Carpal Tunnel Syndrome The musculoskeletal system is the structure that provides a person the ability to move. Repetitive stress injuries, overuse and many more can cause disorders, Muscu-loskeletal Disorders or MSDs. Musculoskeletal disorders affect the muscles, bones lig-aments, and tendons. There are various reasons that contribute to MSDs. Carpal Tun-nel Syndrome is one…

Maximum contractile force production dependant on muscle and sarcomere length in isolated sartorius muscle of Rhinella marina Abstract: An isolated Sartorius muscle of Rhinella marina was repeatability stimulated with electrical impulses to induce isometric contraction. Contractile forces evoked were measured with a force transducer and the relationship between force and muscle length was investigated through the modulation of sample lengths from 80%-140% of the sample resting length. The data…

I.A Background & Key Question(s) Rapid reproductions in muscles cells are needed because our muscles are constantly exposed to exercise and injury. In our muscles, Myoblast is the embryonic cells that mature and fuse together forming Myocytes. Through the process myogenesis, Myocytes form muscles. However, specifically satellite cells aid in new growth and regenerated muscle. Since these cells respond to one another and create a domino effect they were used in this experiment. Rozwadowska et al…

his lab report discussed and elaborated how muscle contraction is an intricate and precise step-by-step process in the body. The concepts outlined at the introduction intertwine with the experiments performed in this lab. The experiments aimed to showcase the physiological cause and effect of skeletal muscle response towards various situations. For instance, the first experiment demonstrated spatial summation through the form of muscle recruitment. The cause of this reaction was due to the…

Loose forward (Ranked order) Power* - Power is defined as the amount of work performed per unit of time. Muscle Strength* - Strength is the maximum force an individual can exert through a muscle or group of muscles, against an external resistance. Muscular Endurance* - Endurance is a measure of the body’s ability to maintain a rate of work. Speed / Quickness* - Speed is the ability to coordinate simple or complex…

Sarcopenia is a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength with a risk of adverse outcomes such as physical disability, poor quality of life and death (Tanimoto et al., 2013). Muscle accounts for 60% of the body’s protein stores. Muscle mass decrease is directly responsible for functional impairment with loss of strength, increased likelihood of falls, and loss of autonomy, respiratory function is also impaired with a reduced vital capacity…