Cardiac muscle

quadriceps muscle. It does so to prevent damage to the muscle and ultimately the maintain homeostasis. There are a series of steps that lead to the initiation of the response. The process starts with a message, known as a neural impulse, that is sent and delivered to the central nervous system. The overall pathway that the neural impulse travels is often called the reflex arc and it includes several key…

nerves or around blood vessels. Its functions are to provide strength, elasticity and support to the skin and muscles. d) Compact Connective Bone Tissue: this tissue contains collagen and calcium phosphate which gives to the bone strength and firmness. The functions of this tissue is to support other softer tissues, to protect internal organs, to help in the movement of skeletal muscles attached to bones, to storage minerals such as calcium and phosphorus, to product platelets, blood cells…

The Cardiac Cycle The cardiac cycle is the sequence of events that occur in the heart during one heart beat. It is how the heart operates, and what exactly happens when it contracts and relaxes. The heart is equipped with four chambers and one-way valves that work with precision to pump blood to and from the body. The heart regulates blood volume to support efficient circulation to the cells, tissues, organs, and systems. It provides oxygen and nutrients to the bodies tissue while also…

severe syndrome caused by a direct or indirect skeletal muscle injury. The damage sustained results in the muscle fibres releasing calcium, creatine, potassium and other proteins and ions into the bloodstream [1]. High levels of blood potassium, known as hyperkalemia, can result in kidney failure and cardiac arrest. Severe muscle trauma can also cause damage and leakage of blood vessels, resulting in an increased level of pressure within the muscle compartments [2]. This condition, known as…

it is the decrease in muscle size and fiber number, which affects an individual’s aerobic capacity and strength as a result of the change in muscle composition. With decreased aerobic capacity and strength in muscles, this causes detrimental effects on performing any activities or tasks that consist of running, walking, moving or carrying objects, and activities required for daily living. Muscles consist of two different types of muscle fibers: type I and type II. Type I muscle fibers are…

Areolar is a fibrous connective tissue, loosely packed, to hold tissue layers together. It is located in the skin, which binds the outer layers of skin to the muscles located beneath. It can be found in or near the mucous membranes, blood vessels, organs, and nerves (SIU Med, 2016). Adipose is a fatty tissue is a form of loose connective tissue that stores energy, insulates and cushions the body. It can be found…

contributing to the hypotension include central nervous system effects, skeletal muscle paralysis and depression of the carotid baro-receptor. Magnesium is also cardiotoxic. At serum Mg concentrations greater than 3 mmol/L, prolonged PR intervals, increased QRS duration and prolonged QT intervals are seen. Mild bradycardia is observed at concentrations greater than 7 mmol/L, and complete heart block as well as cardiac arrest may occur at concentrations greater than 7 mmol/L. Electrocardiographic…

Fast & Slow Twitch Muscle Muscles are the functional units of tissue that move the skeletal system. There are two primary forms of muscle fibers, fast twitch muscles and slow twitch muscles. Fast twitch muscles contract fast and exert large amounts of power in a quick manner.People with high percentages of fast twitch muscles are generally good sprinters and are strong individuals Slow twitch muscles can put out steady power for long amounts of time and perform optimally in endurance training…

When bones and muscles connect a joint is formed. At this point both are joined together by the help of tendons, which is a connective tissue. When we have to move a joint the muscle receives an electrical signal from brain. It causes movement to occur, because this causes the contraction in it. This contraction pulls on the corresponding bone at its insertion point. Stationary bone is called the point of origin for the skeletal muscle, while the one which moves is known as the point of…

other bone but is instead suspended in the soft tissue via ligaments and muscles (Romanes et al 1983). Different muscles such as infra and suprahyoid muscles and genioglossus muscle influence the position of the hyoid bone (Gray H, 1954) (Yamaoka et al 2003). Brodie points out that as man assumed an upright posture the head had to be balanced on the vertebral column. This is attained by equal anterior and posterior muscle tension relative to the occipital condyles. In…