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In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [ 1 ] [ 2 ] It includes the cardiovascular system , or vascular system , that consists of the heart and blood vessels (from Greek kardia meaning heart , and Latin vascula meaning vessels ).
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 ...
AQA Education, [1] trading as AQA (formerly the Assessment and Qualifications Alliance), is an awarding body in England, Wales and Northern Ireland. It compiles specifications and holds examinations in various subjects at GCSE, AS and A Level and offers vocational qualifications. AQA is a registered charity and independent of the government.
Most vessels of the microcirculation are lined by flattened cells of the endothelium and many of them are surrounded by contractile cells called pericytes.The endothelium provides a smooth surface for the flow of blood and regulates the movement of water and dissolved materials in the interstitial plasma between the blood and the tissues.
In one incident concerning the 2016 GCSE biology exam, there were complaints about the apparent lack of biology content in the exam. [65] [66] [67] One of the questions in the biology exam asked students to define an "independent company", which some students perceived to be a business studies question. [68]
The anatomy of arteries can be separated into gross anatomy, at the macroscopic level, and microanatomy, which must be studied with a microscope.The arterial system of the human body is divided into systemic arteries, carrying blood from the heart to the whole body, and pulmonary arteries, carrying deoxygenated blood from the heart to the lungs.
The UK's examination boards sometimes work together. For example, they sometimes offer qualifications jointly or share training materials for common parts of specifications. The JCQ (Joint Council for Qualifications) is a common voice for UK exam boards. The JCQ is made up of AQA, CCEA, City & Guilds, Edexcel, OCR, SQA and WJEC.
Biology (with Coursework) (Singapore) Yes Yes No Singapore only; last exam in 2014 syllabus: CIE 5096 Human and Social Biology: Yes Yes Yes Cannot be combined with syllabuses 0608, 0610, 0653 & 0654 , 5090, 5129 & 5131 (O Level) link: CIE 5100 Biology (Singapore) Yes Yes Exclusive Singapore only; last exam in 2014 syllabus: CIE 5108 Biology ...