WebThe heart is a fist-sized organ that pumps blood throughout your body. It's the primary organ of your circulatory system. Your heart contains four main sections (chambers) made of … WebThe whole circulatory system is a one-way arrangement, with the heart pumping only deoxygenated blood from the body forward to the gills to be oxygenated and redistributed to the body. Although six gill slits appear in embryos, few adult fishes retain all six.

Circulatory system. The heart structure and function

WebThe heart is a fist-sized organ that pumps blood throughout your body. It's the primary organ of your circulatory system. Your heart contains four main sections (chambers) made of muscle and powered by electrical impulses. Your brain and nervous system direct your heart’s function. Cleveland Clinic is a non-profit academic medical center. WebThe structure of heart. The heart is the main organ in the circulatory system, the structure is primarily responsible for delivering blood circulation and transportation of nutrients in all parts of the body. This continuous task uplifts the heart's role as a vital organ whose normal operation is constantly required. 1996答申

25.1 Anatomy of the Circulatory and Lymphatic Systems

WebThe structure of heart. The heart is the main organ in the circulatory system, the structure is primarily responsible for delivering blood circulation and transportation of … WebThere Are Two Types of Circulation: Pulmonary Circulation and Systemic Circulation Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen … WebThe circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction ... 1996隋唐演义