Digestion and absorption: Human digestive system

Carbohydrates are molecules that have specific ratios of carbon, hydrogen, and oxygen atoms. However, in the world of nutrition, they are one of the most contentious issues. Some people believe that eating fewer carbohydrates is the best way to achieve optimal health, while others believe that eating more carbohydrates is the best way to achieve […]

Transport materials across a cell membrane may occur in either active or passive movement. There are two types of cell to cell transport systems (short distance transport) that are namely: Passive transport: A cell transport system that does not require any energy and proceeds through diffusion is called the passive transport of materials across cell

Just like a machine, the human body requires fuel for its work. Our body receives fuel in the form of food to collect the energy required to perform day-to-day activities. Our body derives energy from the food through complex biochemical reactions involving enzymes, and the reaction is referred to as the combustion of food. The

The human body is all that makes you up. What chooses and controls the actual structure and capacity of the human body is our hereditary data. The way our bodies look and work is influenced by their environmental conditions. They are composed of the living and nonliving parts that make up the entire human body,

The temperature of a body is a measurement of how hot or cold it is. A heated oven, for example, has a high temperature, whereas ice has a low temperature. The average kinetic energy of the particles, atoms, or molecules that make up a substance is measured by temperature. A thermometer can be used to

The sympathetic nervous system is a subsystem of the autonomic nervous system that regulates autonomic functions. The sympathetic nervous system helps the body prepare for stressful activities by slowing down bodily processes that aren’t as necessary in an emergency, such as digestion. These are the processes that occur without conscious thoughts and are not under direct conscious

Osmosis is the transfer of hydrogen atoms from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules through a cell’s semipermeable membrane.Only some molecules or ions can flow through a selectively permeable membrane. How does osmosis work: Osmosis works by bringing the concentrations on both

The tongue is covered by mucosa which is a pink moist tissue. It is joined to the base of the oral cavity by a frenulum while the upper surface is free. It gets its rough texture from the papillae present on its surface. It has numerous taste buds all over that help in distinguishing different

These two bean-shaped organs, each about the size of a fist, are connected by a tube that runs through the abdomen. Each kidney is surrounded by a tough, fibrous renal capsule, which provides support for the soft tissue that lies within. Additionally, two layers of fat serve as additional protection against the elements. The adrenal

The human eye is an amazing organ. Composed of many intricate parts working together, that results in something that everyone depends on heavily every single day i.e. our vision. Although we value our vision the most above all our senses (accounting for about 80% of all impressions), a lot of people surprisingly know very little