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Apr 26, 2024 · circulation, in anatomy and physiology, the continuous movement of blood throughout the body, driven by the pumping action of the heart.The circulation of the blood links the sites of oxygen utilization and uptake in the body; thus, it is critical to ensuring that oxygen-rich blood reaches tissues and that oxygen-poor blood is transported away from tissues and back to the lungs.
- The Editors of Encyclopaedia Britannica
Apr 24, 2024 · valve, in anatomy, any of various membranous structures, especially in the heart, veins, and lymph ducts, that function to close temporarily a passage or orifice, permitting movement of a fluid in one direction only. A valve may consist of a sphincter muscle or two or three membranous flaps or folds. In the heart there are two valves that ...
- The Editors of Encyclopaedia Britannica
Apr 21, 2024 · The oesophagus is a fibromuscular tube, approximately 25cm in length that transports food from the pharynx to the stomach. It originates at the inferior border of the cricoid cartilage, C6, extending to the cardiac orifice of the stomach, T11. Anatomically, the oesophagus can be divided into two parts: thoracic and abdominal.
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Apr 18, 2024 · The epiglottic vallecula is an anatomic depression immediately beyond the base of the tongue that serves as an important landmark for endotracheal intubation. This structure is located between the base of the tongue and the epiglottis, forming a small pocket that acts as a pathway for both food and air to pass through.
May 1, 2024 · physiology, study of the functioning of living organisms, animal or plant, and of the functioning of their constituent tissues or cells. The word physiology was first used by the Greeks around 600 bce to describe a philosophical inquiry into the nature of things. The use of the term with specific reference to vital activities of healthy humans ...
2 days ago · The brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making ...
Apr 27, 2024 · type genus of the family Phalangiidae. DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘Phalangium'.Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors.
