10 unusual facts about the human body
By: Jack Merrywell
The human body is a weird piece of work. Our ancestors rather quickly evolved from quadrupeds to tree-climbers to true bipeds, and the resultant bodies, those of Homo sapiens, bear the strange marks of this transition. The following list is comprised of ten of the...
10 unusual facts about the human body
By: Rich Elliott
The human body is an amazing piece of machinery. Consider these ten unusual facts about the body: 1. The little engine that could Your heart is a ten-ounce pump, but this little machine is tireless! Your heart pumps about 1,900 gallons of blood each...
By: Jose Juan Gutierrez
The human nervous system is a communication network of neurons (nerve cells) which serve to conduct a variety of messages to and from various parts of the body. There are two distinct types of nerve tissues: neurons which are the basic structural units of the...
Chemical composition of gallstones
By: Effie Moore Salem
Gallstones, hardened crystallized formations lodging in the gallbladder or in the bile ducts, are formed from either cholesterol or calcium. It's estimated that about 15% of men and 30% of women have these, although often there's no symptoms and many go undetected. Gallstones formed from...
Anatomy of the hearing process
By: Phyllis Logie
The ear is the organ which detect sound. It is also responsible for maintaining balance and body position. The ear is a transducer which converts sound waves into mechanical energy and then into nerve impulses that are then transmitted to the brain. This highly complex...
10 unusual facts about the human body
By: Jose Juan Gutierrez
The human body is composed of millions of cells which are constantly performing varied functions without cease. These cells are capable of reproducing themselves by the millions with such extraordinary speed and performing various functions, such as replacing dying cells, interacting with chemical substances in...
Comparing the functions of thyroid and parathyroid glands
By: Bee Smith
The thyroid gland keeps under control how the body uses energy, makes proteins, and keeps control how sensitive the body is to other hormones. Thyroid hormones are produced by these actions. Main hormones of the thyroid system are triiodothyronine and thyroxine (T3 and T4). Hormones...
Why platelets are important
By: Bee Smith
The purpose of platelets is to recognize any damaged blood vessels, the platelets are the cells that circulate inside our blood and bind them together. For instance, when you get a cut, for instance the platelets bind together at the damaged blood vessel, and causing...
The role of hormones in the human body
By: Jose Juan Gutierrez
Hormones are substances that help maintain a variety of metabolic processes in the human body, including growth and development, energy levels and other important bodily functions. The regulated secretion of hormones in the body helps maintain homeostasis (balance of body systems). There are three distinct...
10 unusual facts about the human body
By: Dorann Winburn
The human body is one of the most amazing pieces of work that has ever existed. Each and every human being starts their life as a single cell that gets half of its genetic makeup from the mother and half of the genetic makeup from...

 

1 84 85 86 87 88 94