The menstrual cycle

Learning medicine is hard work! Osmosis makes it easy. It takes your lectures and notes to create a personalized study plan with exclusive videos, practice questions and flashcards, and so much more. Try it free today! The menstrual cycle refers to the regular changes in the activity of the ovaries and the endometrium that make…

Atrial Septal Defect Explained

Learning medicine is hard work! Osmosis makes it easy. It takes your lectures and notes to create a personalized study plan with exclusive videos, practice questions and flashcards, and so much more. Try it free today! The atrial septum separates the right and left atrium of the heart, and an atrial septal defect describes when…

Anatomy and physiology of the respiratory system

The main job of the lungs is gas exchange, pulling oxygen into the body and getting rid of carbon dioxide. Normally, during an inhale – the diaphragm contracts to pull downward and chest muscles contract to pull open the chest, which helps suck in air like a vacuum , and then during an exhale –…