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The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
The first few of these hidden picture puzzles are Easter-themed. Eyewear company Feel Good Contacts challenges you to find the chick among the daffodils—and there are a whole lot of daffodils ...
The heart works by pumping blood around the body allowing oxygen, nutrients, waste, hormones and white blood cells to be transported. Diagram of the human heart. The heart is composed of two atria and two ventricles. The primary purpose of the atria is to allow uninterrupted venous blood flow to the heart during ventricular systole.
On the trunk of the body, the chest is referred to as the thoracic area. The shoulder in general is the acromial, while the curve of the shoulder is the deltoid.
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 December 2024. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...
How many of these did you know? Tell us in the comments below! The canthus is where the upper and lower eyelids meet. ... 10 body parts you didn't know had names. Sydney Levin. Updated July 14 ...
Malpighian corpuscle – Marcello Malpighi, the name given to both renal corpuscle and splenic lymphoid nodules; Meckel's cartilage and Meckel's diverticulum – Johann Friedrich Meckel; Meibomian glands – Heinrich Meibom; Meissner's corpuscle and Meissner's plexus – Georg Meissner; Merkel cell – Friedrich Sigmund Merkel; Meyer's loop
The heart has two chambers and pumps the blood through the respiratory surfaces of the gills and on round the body in a single circulatory loop. [31] The eyes are adapted for seeing underwater and have only local vision. There is an inner ear but no external or middle ear.