Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. [1] Blood is composed of blood cells …

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2024年12月21日 · Blood, fluid that transports oxygen and nutrients to cells and carries away carbon dioxide and other waste products. Blood contains specialized cells that serve particular functions. These cells are suspended in a liquid matrix known as plasma. Learn more about the components and function of blood.

2023年3月17日 · Blood is mostly fluid but contains cells and proteins. Blood has four parts: Red blood cells (bottom right), white blood cells, platelets (middle right) and plasma (top right). What is blood? Blood is an essential life force, constantly flowing and keeping your body working.

Detailed information on blood, including components of blood, functions of blood cells and common blood tests.

2023年5月11日 · Blood has many functions in your body. Blood tests help doctors check for certain diseases and conditions. Learn about blood types and blood tests.

2024年1月16日 · Blood supplies essential substances, such as sugars and oxygen, to cells and organs, and removes waste from cells. Hematologists work to identify and prevent blood and bone marrow diseases....

2017年7月26日 · Blood is the body fluid in humans and other animals that delivers the essential materials for life to the body’s cells. It has sometimes been called a fluid “tissue,” because like solid tissues it contains several types of cells which …

2023年8月3日 · Blood is made up of blood cells (also called hematocytes or hematopoietic cells) and plasma. These are the cellular components of the blood covering about 45 – 46% of total blood. There are four types of blood cells present in humans, namely, (i) Red Blood Cells (RBCs), (ii) White Blood Cells (WBCs), and (iii) Platelets.

2024年7月10日 · Blood is a specialized bodily fluid that performs essential functions to sustain life. It circulates through the body’s cardiovascular system, delivering vital substances and removing waste products. Here are the primary components and functions of blood.