Inflammation is a part of our biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants that causes itchiness, and it’s a protective reaction of our body concerning immune cells, blood vessels, and molecular mediators. The work of inflammation is...
MHC class I molecules present peptides which bind to the T cell receptors of cytotoxic T lymphocytes. These are found on the cell surface of almost all nucleated cells in the body which enable the T cells to distinguish between “self” and foreign antigens. This...
Giving a kidney is not a small thing. However, you don’t have to overhaul your lifestyle following surgery. “You have to be in good health to be able to donate. So most of the steps you required to get healthy are exactly the same steps...
As a kid, I loved using face masks and lucky for me, my mom used to make me one with Chickpea Flour, Yogurt, Lemon Juice, and Honey. This works great especially if you have dull skin or if you want to brighten your complexion and...
The poems “Because I Could Not Stop for Death” by Emily Dickinson and “Song: Tears, Idle Tears” dramatize different attitudes toward human mortality. The theme of mortality is analysed in poem “Song: Tears, Idle Tears” by exhibiting fascination with the death of poet’s loved ones...
Tears of the Sun, a movie released in 2003, tells the story of a team of Navy SEALs and their lieutenant as they venture on a mission to extract a US doctor, a mission priest and nuns. The movie is based on true events that...
The Cardiovascular system The cardiovascular system is a major part of the body and is not appreciated as much as it should be. The movement of the blood is known as the cardiovascular system. The main components of the system are the heart, the blood...
There are four main types of tissue: muscle, epithelial, connective and nervous. Each is made of specialized cells that are grouped together according to structure and function. Muscle tissue varies with function and location in the body. In mammals, the three types are: skeletal or...
Introduction to Blood Types There are four major types of blood: A, B, AB, and O. What blood type you have depends on the antigens present on your red cells and the antibodies in your plasma; more on that later. Blood type is hereditary and...
Introduction to the Circulatory System Although the heart plays one of the biggest roles in the circulatory system, the rest of the system is also very important as it is what transports blood to and from the heart to keep the body alive. Blood is...
Blood
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It’s made of two separate circuits and the blood passes through the heart twice. The pulmonary circuit carries blood to the lungs where carbon dioxide is removed from the blood, and oxygen is taken up by the haemoglobin in the red blood cells and then...
We have three different muscle contractions with exercising and they are concentric in which the muscle shortens, eccentric in which the muscle lengthens and isometric which you are in a fixed position. When you think of a bicep curl you are having eccentric movement as...
Anaemia or anemia is a condition in which, oxygen of blood is reduced due to low hematocrit or low blood hemoglobin concentrations. Usually, blood has lower than normal number of red blood cells. Anemia appear when there are not enough red cells in the body,...
The word homeostasis come from the ancient Greek, and it’s the union of the two words homeo and stasis. Homois means “similar”, and stasis means “staying still”, which gives the idea of “staying the same”. The human body consists of millions of cells working together...
The skin is the largest organ in the body. It protects the body against physical injuries, temperature regulation, sunlight, infection, stores water, fat, and plays a key role in metabolism including vitamin D, among other functions. The skin consists of three main layers, epidermis (upper...
The Digestive System The digestive system is a group of organs that work together to convert food into energy that the cells in the body can use. The process of digestion starts in the mouth when you chew your food, and the teeth break it...
The word anesthesia is developed from two Greek words: “an” meaning without, and “aesthesis” meaning sensation. There are many different types of anesthesia. Throughout lives, most people will undergo anesthesia either during the birth of their baby or for a surgical procedure, which could range...
Insulin is a hormone secreted by the gland called pancreas with the help of insulin, glucose in the human body is broken down into energy and water, in case of excess glucose, it converts into fat and stored in the body. Insulin helps to maintain...
In the ABO blood group system, the red blood cells in humans have molecular differences from individual to individual. The differences are systematic and can be characterized according to a system of four different hereditary types; A, B, AB and O. These types together form...