Frog Leg Lab Report

Compare the reaction times for voluntary vs. involuntary activation of the quadriceps muscle. What might account for the observed differences in reaction times? Outline what has to occur in the body for each reaction to occur. Refer to your drawing from Step 23. Information from the flow chart created in Activity 2.2.1 might be helpful.

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

Eventing is a difficult equestrian discipline for the horse and also the rider. This study is on horses and ponies that competed in the 2010 and 2011 European Championships. The European Championships is the highest level of eventing. Therefore, the level of fitness for these horses and ponies is extremely high, and many injuries can be caused because of it.

Our hearts serves as biological pumps responsible for pumping blood through blood vessels to body tissues. The hearts pumps blood by undergoing cycles of contraction (systole) and relaxation (diastole) in what is referred to as cardiac cycles. Each cardiac cycle, therefore, represents one heart bit. The number of heart bits per minute is referred to as the heart rate. The pumping mechanism of the heart is dependent on the pressure differences created in the chambers of the heart following the contraction and relaxation of heart muscles. The contraction of heart muscles results from electrical signals distributed through the electrical conduction system in the heart. These electrical signals are generated from special cells within the heart

MacDonald, G. Z., Button, D. C., Drinkwater, E. J., & Behm, D. G. (2014). Foam rolling as a

A recent scientific discovery from Utah State University reveals that almost every animal in the jungle poses less of a threat than two types of frogs found in the wild. The two types of casque-headed tree frogs (the Corythomantis greening and the Aparasphenodon brunoi) were discovered to be harboring venom, rather than the usual poison that frogs contain on the surface of their skin. The difference leaves experts astonished at the possibility of a weaponized frog, and the discovery could alter the taxonomy of frog species forever.

Bucket handle tear is made when the edge of the medial meniscus is torn and moved from its position.

We do not have the right to test on animals. 26 million animals are used for animal testing and scientific research each year.(9) From mice to monkeys, scientists use them all around the globe. Animal cruelty is not as present as it used to be, but it is still happening around the world today, if more people were aware of this, there could be changes in the industry.

A prominent explanation was suggested and studies by Haslam et al. (2014) who came up with the "Followership Model" that was mentioned earlier, focused on the type of prod used, and the correlation between the type of prod used and the levels of obedience exhibited. They designed a study in which they assessed each prod of the 4 used by Milgram and found out that the prod that yielded in the highest obedience scores was a prod that implied obedience in the name of scientific advancement and benefit. Counter intuitively, the prod that signified a clear order had the lowest obedience rates. This idea pours into the mechanisms used to control masses and elicit obedience among large amounts of people. Therefore, leaders or people

Additional common objective measurement of scapular position is the Sahrmann technique.8 This consists of each subject standing with their back touching the wall, knees slightly bent and abdominal muscles activated to flatten the low back against the wall. The tester uses the index fingers and thumbs pinched together to place the radial borders of the index finger against the wall at ear level. The tester instructs the subjects to slide both hands as high as possible without losing contact between the wall. The tester uses their index fingers to place the radial borders to ensure the elbows pointed straight out to keep the shoulder in flexion and external rotation. The final position is judged to be reached when the subject was unable to continue

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,

Diagnosis of plantar fasciitis is based upon the patient’s history and on results of the physical examination typically present with inferior heel pain on weight bearing and pain often continue for months to years [5].The patient usually has tenderness around the medial calcaneal ligaments at the plantar aponeurosis[4] .Some risk factors of plantar fasciitis include faulty mechanics of the foot due to structural abnormalities, age-related degenerative changes, overweight and occupations involving standing for a long time such as falling into this category include teachers, construction workers, cooks, nurses, military personnel and athletes training for long distance running events[6] .Many treatment options exist, including stretching and strengthening, shoes modification, arch supports and orthotics such as night splints, anti inflammatory agents and surgery [7,8] .

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).

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

We attach the markers to joints of the skeleton figure of 14 joints (waist, neck, shoulders, elbows, hands, groins, knees, feet). In order to identify the respective body parts were prepared marker 3 colors. Waist and neck green, arms red, legs blue. Background color eliminate overlap with the color markers and the object. To identify the skeleton figure and markers using HSV color diagram. From markers that are color-corded