Essays Tagged: "muscle contractions"

A project on the human esophagus

is about 25 cm long and 2.5 cm across. Food is forced downward to the stomach by powerful wave like muscle contractions passing through the walls of the esophagus. Because these contractions are so st ... the esophagus, we can swallow in any position -- even upside-down! The esophagus wall contains two muscle layers, an inner circular layer and an outer circular layer. This contraction must be coordin ...

(2 pages) 22 0 2.0 Jan/2004

Subjects: Humanities Essays

Points on the esophagus in the digestive system.

is about 25 cm long and 2.5 cm across.-Food is forced downward to the stomach by powerful wave like muscle contractions passing through the walls of the esophagus.-The contractions are so strong in th ... the esophagus, we can swallow in any position -- even upside-down!-The esophagus wall contains two muscle layers, an inner circular layer and an outer circular layer.-This contraction must be coordin ...

(1 pages) 21 0 3.0 Jan/2004

Subjects: Humanities Essays

Skeletal and muscular system

Systems Movement is a major characteristic of animals. This movement is a result of contraction of muscles. The skeleton helps transmit that movement. Skeletons are a fluid-filled body cavity, exoske ... tons.Hydrostatic skeletons consist of fluid-filled closed chambers. Internal pressures generated by muscle contractions cause movement as well as maintain the shape of the animals, such as the sea ane ...

(9 pages) 118 0 4.7 Mar/2005

Subjects: Science Essays > Biology > Human Biology

Love!!

en researched in labs and can be quantified through measurements such as pulse and breathing rates, muscle contractions, etc.Love cannot be charted or measured. Anger and fear have a definite roll in ...

(2 pages) 71 1 3.6 Sep/2006

Subjects: Social Science Essays > Psychology

Creatine: Positive Effects Vs. Negative Effects

ormation on how creatine works and its history.Creatine is a natural substance that is found in the muscles of humans and animals. It's composed of three amino acids called arginine, glycine and methi ... e is in the body it produces Adenosine Triphosphate, or ATP. ATP creates the energy that is used in muscle contractions. The bonds between the phosphates and the Adenosine are very strong. When they a ...

(8 pages) 28 0 3.0 Oct/2006

Subjects: Humanities Essays > Health & Medicine > Drugs

The Contraction and Mechanism of Rabbit Muscle

s the energy for most of the energy consuming activities of the cell. The demonstration of skeletal muscle contraction was presented by A. F. Huxley, 1957. His hypothesis showed the importance of  ... hypothesis showed the importance of “the size of the power stroke in isometrically contracting muscle fibers” (Ferenczi 1). To better understand muscle contraction and muscle contraction ...

(4 pages) 29 0 3.0 May/2007

Subjects: Science Essays > Biology

Elements and the Human Body - Calcium

ng bones and teeth. Calcium is also needed for the storage of glycogen. Glycogen is what gives your muscles the energy they need and is important for muscle contractions. Calcium also activates the pr ... ium also activates the protein fibrin which is used for blood clotting, to regulate the heart beat, muscle tone, muscle contraction and nerve conduction. Calcium is a vital component of spinal fluid a ...

(4 pages) 18 0 3.0 Dec/2007

Subjects: Science Essays > Chemistry

Digestive System Track

rack meet here. The Esophagus is about 22 cm long. The persitalsis will move the food down with the muscle contractions. The ring muscle, spincter, will control the food movement down to the stomach. ...

(1 pages) 831 0 0.0 Feb/2008

Subjects: Science Essays > Biology > Human Biology

Should Creatine Be Allowed In College Athletics?

is a natural substance that is created by our body. It also forms a compound that is stored in the muscles that help provide energy during brief, intense exertion (drugs and herbs). It is created in ... r-the-counter "dietary supplement" (creatine supplements). Ninety-five percent is found in skeletal muscle and the remaining five percent is through out the rest of the body (creatine monohydrate). Cr ...

(5 pages) 6 0 5.0 Feb/2008

Subjects: Humanities Essays > Health & Medicine > Sports

Botulism

in to reduce or stop wrinkles in the skin, known as 'botox'. Wrinkles are caused by repeated normal muscle contractions, if there are no contractions, there will also be no wrinkles! (Medicine Net)Mou ... entre for Disease Control and Prevention)SymptomsThe neurotoxin paralyzes the nerves preventing the muscles from contracting (Medicine Net). The symptoms of botulism show themselves 12 - 36 hours afte ...

(5 pages) 43 0 5.0 Jun/2008

Subjects: Science Essays > Microbiology

"THERE ARE MANY FACTORS INVOLVED IN THE PREPARATION AND PERFORMANCE OF AN ATHLETE FOR OPTIMUM SPORTING PERFORMANCE" SPORT : BASKETBALL

ine phosphate (CP). The high energy phosphates adenosine triphosphate (ATP) is needed for energy in muscle contractions which is provided by the phosphocreatine (PCr) stored within muscles. The adenos ... the following the 10-12 seconds of maximal exercise. It is used for near maximum exertion where the muscles turn to the anaerobic glycolysis energy system. A series of fast breaks or fast paced passag ...

(27 pages) 65 1 2.0 Oct/2008

Subjects: Humanities Essays > Health & Medicine > Sports

The Sexual Response Cycle

s,and even the earlobes swell as blood vessels dilate in these areas (yes-the earlobes).Myotonia is muscle tension. It causes facial grimaces, spasms in the hands andfeet, and then the spasms of orgas ... such as; the skin may take on a rosy sex flush, the nipplesmay become erect in both men and women, muscle tension, and the heart rate and bloodpressure also increase. When the excitement phase begins ...

(3 pages) 38 0 3.0 Mar/2009

Subjects: Social Science Essays > Education

Advantages and Disadvantages of Technology

the continue use of these tools within law enforcement.One may argue that a Taser (stun gun) causes muscle contractions and renders a person helpless while being temporarily paralyzed. Lee (2007) addr ...

(4 pages) 47 0 3.0 May/2009

Subjects: Law & Government Essays > Law > Issues