blood
Sign in to saveBlood 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 of the body, and transports metabolic waste products away from those same cells.
AI overview
Blood is a fluid that circulates through your body and delivers essential nutrients and oxygen to your cells while carrying away waste products they produce. It's vital because without this constant transport system, your cells couldn't survive or function properly.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Anatomy.Name
- Blood
- Anatomy.Latin
- sanguis
- Anatomy.Greek
- αἷμα (haîma)
- Anatomy.Image
- Venous and arterial blood.jpg
- Anatomy.Caption
- Venous (darker) and arterial (brighter) blood in syringes.
via Wikipedia infobox
Wikidata facts
- Instance of
- biogenic substance
- Subclass of
- animal product
- Part of
- circulatory system
- Has part
- platelet
- Image
- Blood Test (15575812743).jpg
Article
46 sectionsContents
- Functions
- Constituents
- In mammals
- Cells
- Plasma
- Acidity
- In non-mammals
- Physiology
- Circulatory system
- Cell production and degradation
- {{anchor|Oxygen transport}}Oxygen transport
- Carbon dioxide transport
- Transport of hydrogen ions
- Lymphatic system
- Thermoregulation
- Rate of flow
- Hydraulic functions
- Color
- Disorders
- General medical
- Hematological
- Carbon monoxide poisoning
- Treatments
- Transfusion
- Intravenous administration
- Letting
- Etymology
- History
- Classical Greek medicine
- Types
- Culture and religion
- Indigenous Australians
- European paganism
- Christianity
- Judaism
- Islam
- Jehovah's Witnesses
- Vampirism
- Invertebrates
- Other uses
- Forensic and archaeological
- Artistic
- Genealogical
- See also
- References
- External links
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 of the body, and transports metabolic waste products away from those same cells.
Blood is composed of blood cells suspended in plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, and hormones. The blood cells are mainly red blood cells (erythrocytes), white blood cells (leukocytes), and (in mammals) platelets (thrombocytes). The most abundant cells are red blood cells. These contain hemoglobin, which facilitates oxygen transport by reversibly binding to it, increasing its solubility. Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood.