causesRefractive errors are a group of common vision disorders caused by irregularities in the eye's shape, which prevent light from focusing properly on the retina. These issues lead to blurred or distorted vision and include conditions such as myopia, hyperopia, presbyopia, and astigmatism. Exploring...

Anatomy of the Eye Illustrated Schematic of the Human Eye: The human eye is a highly specialized organ that plays a critical role in visual perception, one of the primary sensory systems enabling interaction with the environment. As a complex optical system, the eye is designed...

Respiratory System The respiratory system consists of the lungs, airways (trachea, bronchi, bronchioles), diaphragm, larynx, pharynx, nose, and mouth. Its primary function is gas exchange: inhaling oxygen and exhaling carbon dioxide. It also offers defense against harmful particles and microorganisms, as well as enabling olfaction...

The blood is pumped by Heart The heart itself is made up of 4 chambers, 2 atria and 2 ventricles. heart studies have shown that De-oxygenated blood returns to the right side of the heart via venous circulation. the heart pumps blood into the right...