Human Biology Essays, Research Papers & Term Papers (418) essays
Human Biology essays:
Abnormalities in the cardiac cycle.
... of impulse conduction and disorders of impulse generation. The various and detailed events that take place with every heart beat is referred to as the "cardiac cycle". The top chambers of the heart are called the atria and the bottom chambers, the ventricles. A normal heart beat begins when the ...
Cancer Cell Metastasis and How Cells Diffuse Into Diverse Parts of the Body
... of nutrients, oxygen, waste materials, and so on. These cells, in order for the organ to function properly, must be replaced when resources within the cell have been worn out. An internal feedback system controls cell division by balancing the number of old and dying cells against the progeny of the ...
Elbow Hyperextension.
... and a fall the wrong way, injuries occur in all shapes and sizes. Some may require surgery or just a bag of ice. Either way, the human body has many anatomical structures that are susceptible to injury. The upper extremities injuries in the body such as the shoulder, elbow, and ...
Blindness.
... the amount of light that enters the eye. It opens and closes to protect the sensitive retina from to much light. The retina covers the back of the eye. It contains millions of photo-receptor cells. These cells react to the presence and intensity of light and send impulses to the brain through the ...
Cooling of the Human Body with Respect to Vaporization of Sweat
... the normal core body temperature of 37 deg C. A function of human physiology is to regulate body temperature by means of perspiration in conditions where the skin temperature approaches or exceeds 37 deg. As skin temperature increases above 37 deg C, the amount of ...
Looking at Animal Cells Lab - Science Probe 10
... the heart muscle was voluntary you would have to think every time you need to beat it and you would die. 9. You can tell that there are living cells in your bones because your bones grow. 10. The skin epithelia cell looks just like the onion cell. Blood Cells 1. The ...
Muscle Endurance
... and avoiding muscle cramps Muscle cramps can be one of the most painful things when playing sports and can sometimes feel like you can't avoid them sometimes. The cause of muscle cramps is when muscles ...
How the Heart Works
... of the lungs through the pulmonary veins, and returns to the left atrium and goes down into the left ventricle. The left ventricle is the biggest muscle in the heart. After it goes into the left ventricle, it goes into the aorta and is let out to go the rest of the body. So in other words, the heart ...
DIATHESIS STRESS MODEL FOR MENTAL DISORDER
... cells, the scope of the effect of which may extend to various parts of the cerebrum partially regulating mood, such as the limbic system and the hypothalamus. In addition, comprehensive investigations conducted on both the cadavers of ...
Stem Cells In The Brain
... cell types. These cells function in injury repair, growth, and regeneration. Stem cell activity has been observed in many areas of the body including the digestive tract and bone marrow. Almost all post-natal blood cell formation occurs in the bone marrow. Here, a common population of stem cells ...