Senescence: The normal aging process of all human beings
By: Thomas Gavin
Senescence: a biological term that basically means aging. It encompasses all of the biological processes of a living organism's approaching an advanced age (i.e., the combination of processes of deterioration which follow the period of development of an organism). The word senescence is derived...
Simple glands in humans
By: Dr Pandula Siribaddana
What is a ‘gland’? Humans, or many other animals for that matter, will rely on certain specialized tissue structures called glands in order to provide them with certain types of secretions which can be a hormone, enzyme or else some sort of chemical. These...
Physiology of water regulation in the human body
By: Tarek Musslimani
Water is the major compound in the human body. It constitutes more than 50% of the total body mass. Its importance stems from the fact that it can solvate many molecules including proteins and electrolytes in addition to many other compounds such as urea. Nature...
Physiology of acid and base regulation in the body
By: Tarek Musslimani
In this article, I will discuss how the pH of the blood is regulated in addition to the mechanisms that stand this regulation. The pH of the blood is tightly regulated and is kept within a narrow range that does not change even with the...
Hormones that participate in the regulation of blood glucose
By: Tarek Musslimani
Glucose is a sugar which is used as cellular fuel by human cells. Many tissues in the body have several sources of fuel molecules to generate energy in addition to glucose such as fatty acids and amino acids. Glucose is a unique source of energy...
Physiology of potassium ion regulation in the human body
By: Tarek Musslimani
Potassium ions are alkali metal ions which are important physiologically due to their important function in nerve conduction and muscle contraction. For this reason the body has allocated two known hormones to regulate their level in the blood. This is in addition to regulation which...
By: Dr Pandula Siribaddana
Overview: The human clavicle is considered to be a ‘key’ like structure and is said to be a long bone of the body although there are several differences from a classical long bone and the clavicle. It extends from the sternum in the front...
Difference between cartilage and bone
By: D. Vogt
Cartilage and bone are both stiff connective tissues which form an essential structural component of the body of animal organisms, including human beings. However, they are also quite different in both composition and function. Bones are extremely hard, dense tissue which provide a supportive frame...
Route and innervation of the nerves of the upper limb
By: Amelia Walker
The upper limb is probably the part of the body that is most involved with the external environment. The one thing that differentiates us from most animals is the opposable thumb, which has evolved over many years to be a handy tool in the...
Overview of the human kidney
By: Tarek Musslimani
The kidney is the site where urine is formed. For this reason it is an indispensable organ for maintaining homeostasis of the body function. In addition to urine formation it is also important for other functions of the body such as regulation of electrolytes and...

 

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