The Human Muscle System

Basset hounds are extremely friendly and loving family pets who live for between 8 to 12 years. They have a short and hard textured coat which is usually tri-colours (black, brown, white). They are a pack animal who love attention from both human and other dogs and will become lonely and destructive when left on their own. They have a rounded skull with a deep muzzle and lots of loose skin which gives them a droopy look on their face. Their short legged appearance results as a form of dwarfism called achondroplasia. They generally weigh between 60-65 pounds and are no more than 14 inches at their shoulder. Despite there appearance they are scent hounds who were originally breed for hunting small game such as rabbits and hare. Because of their

Skeletal muscles are made out of striated subunits called sarcomeres, which are made out of the myofilaments actin and myosin. Skeletal muscles contain myofibrils. Every myofibril is striated with dull and light bands. I bands contain just thin fibers, made fundamentally out of actin. Myosin cross bridges stretches out from the thick fibers to re slim fibers. Very still, the cross bridges are not connected to actin. The cross-bridge heads capacity as ATPase enzymes. ATP is split into ADP and Pi enacting the cross bridge. At the point when the actuated cross bridges connect to actin, they discharge Pi and experience a power stroke.

Tropomyosin is a long strand. It loops around the actin chains in the thin filament. It covers the myosin binding site of the actin and tropomyosin molecules and prevents muscle

The two fitness tests I’m most proud of is my full sit ups in a minute and beep test results. The exercises I did in my three week fitness program to help me accomplish my 55 sit ups in a minute included a variety of core exercises. I’ve done side planks, sit ups, planks, russian twists, hollow holds, running mans, v-snaps, mountain climbers, plank jacks, wood chops and tuck extends. As I have worked various parts of my rectus abdominis such as my obliques and transversus abdominis, my body has gained an overall stomach toning. This overall toning and exercise lead to an increase of 15 more sit ups in a minute from my first fitness test results. Moving forward, running 50 lengths of the gym on Friday, January

The ACL crosses diagonally in the middle of the knee behind the patella and it connects the tibia to the femur. Its function is to prevent the tibia from sliding in front of the femur and to prevent overextension of the knee. The LCL connects the femur to the fibula and its function is to keep the lateral side of the knee stable. RG3’s injury is due to an ACL and LCL tear. The ACL was torn when his foot planted in the field and his knee cut into internal rotation. His LCL was torn due to excessive knee adduction. He was susceptible to this turn of events due to a prior injury caused by landing wrong after a jump. When he performed the long jump his knees internally rotated past their range of motion.

The rotator cuff is composed of four muscles the Supraspinatus muscle, Infraspinatus muscle, Teres Minor muscle, and Subscapularis muscle. The rotator cuff muscles, tendons, ligaments and labrum aid in stabilizing, internally rotating and externally rotating the shoulder joint.

Low back pain is one of the most common reasons people go to the doctor and in which many people will face at least once in their life time. Low back pain can be experienced by many people at any age, but mostly in those of the aging population. There are many reasons people experience low back pain, but most begin to feel better after several weeks and only rarely do they experience chronic back pain problems. One such chronic low back pain condition that effects the younger population is lumbar spondylolysis.

The Rotator Cuff injury effects the muscles on the dorsum of the scapula and the iriceps brachii. It is a group of tendons that surround the shoulder joint and can be damaged/injured easily. The Rotator cuff can be injured to different extents. They can range from simple inflation to complete or partial tears.

Don’t be scared if you have a rotator cuff injury. The rotator cuff tear happens to so many people around the world yearly. It is one of the most common causes of shoulder pain. Though it can be a major setback, there are numerous exercises that can help you heal. These workouts listed in this article are the best exercises for rotator cuff pains.

There are three types of muscle contraction.The first is when a muscle (a fiber, a motor unit, or the muscle as a whole) is activated, it attempts to shorten itself. It attempts to contract and exerts force. Whether the muscle actually becomes shorter depends on many factors. But the force is still being generated as long as the muscle is trying to contract. The second is Static/Isometric. Static, or isometric, muscle contractions occur when the muscle is activated, but the muscle stays the same length, neither lengthening nor shortening. This happens quite often. The third is Dynamic/Isotonic (Concentric and Eccentric). Dynamic, or isotonic, muscle contractions occur when the muscle contractions cause movement. And whenever there is body movement,

There are numerous structures of the hearing mechanism that affect the transmission of sound to the cochlea. While the majority of these structures promote amplification of sound, the muscles of the middle ear actually serve to protect hearing from damage caused by loud sounds. The tensor tympani and stapedius muscle work together to activate the acoustic reflex when needed.

Skeletal muscle is innervated is controlled by the somatic nervous system. It is responsible for voluntary (controlled by individual free will) motion such as walking, lifting up things, running etc. skeletal muscle is positioned next to blood vessels as well as lymph vessels. Contracting skeletal muscles releases a huge amount of non-useable energy that can be dissipated by sweating. When the body temperature drops in the cold or we are very sick - the hypothalamus can stimulate the skeletal muscle to contract and warm the body (shivering).

The overall function of the muscular system is to provide movement of the body and organ function through contraction and expansion. Muscles are categorized as voluntary or involuntary. Voluntary muscles are the muscles that we can control when and how to move them. Involuntary muscles are muscles that are controlled by the autonomic nervous system, so we can’t consciously control them.

Almost half of a human 's body weight is composed of muscle. There are three distinct types of muscle tissue: cardiac muscle, skeletal muscle, and smooth muscle. Each of the muscle tissues have different structures, properties, characteristics, and roles in our body. Properties of muscle tissues include excitability, contractility, extensibility, and elasticity. Contractility is the ability to shorten, which causes movement of the structures to which the muscles are attached. Excitability is the ability to respond or contract in response to chemical and/or electrical signals. Extensibility is the capacity to stretch to the normal resting length after contracting. Elasticity is the ability to return to the original resting length after a muscle

The human body is an amazing thing made up of many different parts. These parts are cells, tissues, organs, and organ systems. For starters, one type of cell makes up one type of tissue. Next, two or more types of tissues make an organ. Then, a few organs working together make an organ system. Each of the organ systems in your body have a certain function, or job. Working together, all of these organ systems make up an organism. In other words, cells make up tissues, tissues make up organs, organs make up organ systems, and organ systems make an organism.