46. The smooth sustained contraction that is a result of a high frequency of stimulation is:…
What is the voltage beyond which there were no further increases in active force? Maximal voltage: 8.5 V…
Muscular System: The muscular systems is responsible for maintaining posture, circulating blood, and movement. Visceral muscle is found inside of organs like the stomach, intestines, and blood vessels. The stomach secretes acid and enzymes that digest food. The muscular system also has another variant which is skeletal muscle. The skeletal muscles are attached to bones and move various parts of the body. The biceps, pectoralis major, triceps, nasalis, and deltoid are five major organs in the muscular system. The biceps main job is to control the movement of the elbow and shoulder. The pectoralis major make up most of the chest bulk. The triceps help extend and retract the forearm. The nasalis compress nasal cartilage. The deltoid is responsible…
Human skeletal muscle consists of hundreds of individual cylindrically shaped cells (called fibers or myofibers) bound together by connective tissue. In the body, these muscles are stimulated to contract by somatic motor nerves that carry signals in the form of nerve impulses from the brain or spinal cord…
Smooth muscle- are involuntary muscles found in the walls of hollow organs like the stomach, intestines or bladder. Smooth Muscles have many functions in the body, but one of the functions of smooth muscles in the bladder contracts to push urine out of the body.…
As mammals our aerobic metabolic system requires oxygen for us to sustain life. The organ that transports oxygen from the environment into the body where it is needed, are the lungs. Oxygen is transported through cellular respiration from the lungs to tissues and organs. Between 2,100 to 2,400 gallons of air is breathed to fuel 2,400 gallons of blood that is pumped into the heart. Respiration is controlled by the medulla oblongata, which deals with the autonomic function of breathing. This characteristic allows one to breathe without having to think about the process but can also be overridden and controlled in certain situations. As a result of respiration, carbon dioxide is produced where it is removed for oxygen to be restored. The purpose…
Our skeletal muscles make up 40-50% of our total mass and are essential for all humans to move, breath, and stand up straight. For the first 20 years of our lives and for those physically active after our muscles are continually growing. Satellite cells are responsible for this growth in our skeletal muscle and are referred to as muscle stem cells. When skeletal muscle cells are traumatized due to physical trauma or disease the regeneration process includes three general processes, destruction, regeneration and remodeling. What regulates these three processes? How are they signaled to initiate the cell cycle and what nutrients and systems do they require to carry out the processes…
If you really want to get your upper body toned, all you need is a mini-exercise trampoline and a little free time. You can use the exercises below to target your upper-body muscles. These exercises will also benefit your abdominal muscles as well as your leg muscles.…
Please provide an example of Homeostasis and Negative Feedback in our environment. Be sure not to duplicate a classmates' answer.…
If you want to tone your abdominal muscles and look good on your swimsuit, you can also do dumbbell workout exercises to firm and tone your abdominal muscles. You can do side bends with dumbbells on one hand and help you stretch the side of your abdominal…
It is difficult for most of the body builders to control their died when they are following a muscle building diet. The reason behind this is that think if they will eat a lot, this will magically contribute in bulking up. They may be right up to a certain degree but they are unaware that weight gain means adding fat also. This is not a healthy way of increasing muscle mass.…
Obesity is an epidemic that greatly affects over 50% of the American population. The reasons for this epidemic are numerous, from the growing trend of the super-sized meal to the intense laziness of the average American. It is this inherent laziness that leads many Americans to look for a quick fix to the problem of obesity; this has resulted in the increasing popularity of cosmetic surgeries to "cure" someone of the obesity. Gastric bypass surgery is the leading remedy for this particular problem.…
There are a few straightforward dumbbell exercises that can be performed all the time to help keep your muscles and abdominal area in decent condition. Bicep twists are the least demanding and most unmistakable dumbbell works out.…
The purpose of this lab is to test what substances are necessary for muscle contraction.…
Roux-n-Y gastric bypass surgery is the most common and successful combined weight loss surgery in the United States. For people who are morbidly obese (BMI of 40 or greater) or BMI of 35 or more with serious health issues, the surgery benefits them more then not getting it. It has been said that 95 percent of people who diet to lose weight put it back on within two to three years (Dr. Leibel, 2005). With surgery you have the tool to change this because you will have a smaller stomach which helps prevent so much hunger at least at the beginning. People who are morbidly obese should seriously consider getting this surgery because the pros outweigh the cons by far. A majority of patients having surgery for obesity can expect long term weight loss if they follow all the postoperative guidelines. Gastric bypass has…