Biology
- #83 Question 6
The diagram below shows pressure changes in the left atrium and left ventricle of the heart and the aorta during the cardiac cycle. (a) Calculate how many heart beats there will be in one minute. (2 marks)(b) (i) On the diagram, indicate the point at...
- Atheroma
Term: atheroma Origin: ?????/?????/atheri(=groats, or porridge) + -oma (-noun suffix used usually to form names of tumors or to denote marked growth). The term derived by the sense of the fatty depost in the inner lining of the artery like an encysted...
- Carotid
Term: carotid Origin: Anc Greek ????????/karotida(=carotid artery) from verb ?????/karoo(=plunge into stupor) because it was thought that pressing hard on these arteries made mammals lose consciousness. Another word etymology is derived from the anc...
- Comparison Between Artery And Vein
Artery Vein 1. Direction of blood flow is from heart to other body parts Direction of blood flow is from body parts to heart 2. Carries oxygenated (pure)...
- Heart, Blood & Blood Vessels- Facts
The human body has approximately 37,000 miles of capillaries.The aorta, which is largest artery located in the body, is about the diameter of a garden hose.Women hearts beat faster than men.Three years after a person quits smoking, there chance of having...
Biology
aneurism
Term: aneurism
Origin: Anc Greek ??????????/-aneurunein(=to dilate) >
???/ana(=up, on top) +????????/eurinein(=to widen)
> ?????/euris(=wide)
Coined:
Aneurysms were recognized in very early times especially those seen on superficial inspection of the body mainly due to trauma. Galen is considered the first to define and describe the disease but when Greek surgeon Antyllos was the fisrt who tried to operate an aneurysm by incising and emptying the aneyrismal sac between two ligatures. French phycsian Jean François Fernel (1497?1558) early in 1542 cen described the internal aneurism. In 1595 first French surgeon Jacques Guillemeau (1550?1613) wrote that the ? tumor called aneurism is usually considered to be dilation of the artery (Erichens?s translation in book ?Observations on Aneurism, Sydenham Society, 1844)). Giovanni Maria Lancisi (1654 ? 1720) published in the 18th cen the book ?De Aneurysmatibus? discussing the etymology of the term of aneurism . He was also of the opinion that an artery must be weaked very musch before it dilates. Finally in 1923 Rudolph Matas (1860-1957), performed the first successful aortic ligation on a human.
Definition:
Aneurism is a abnormal localized, blood-filled bulge in the wall of a blood vessel as a result of weakening of the artery wall.
Sources
RT Adair, Aneurism with report of a case J Nat Med Assoc, 1936
R Suy. The Varying Morphology and Atiology of the Arterial Aneurysm. A Historical Review. Acta chir Belg, 2006, 106, 354-360
- #83 Question 6
The diagram below shows pressure changes in the left atrium and left ventricle of the heart and the aorta during the cardiac cycle. (a) Calculate how many heart beats there will be in one minute. (2 marks)(b) (i) On the diagram, indicate the point at...
- Atheroma
Term: atheroma Origin: ?????/?????/atheri(=groats, or porridge) + -oma (-noun suffix used usually to form names of tumors or to denote marked growth). The term derived by the sense of the fatty depost in the inner lining of the artery like an encysted...
- Carotid
Term: carotid Origin: Anc Greek ????????/karotida(=carotid artery) from verb ?????/karoo(=plunge into stupor) because it was thought that pressing hard on these arteries made mammals lose consciousness. Another word etymology is derived from the anc...
- Comparison Between Artery And Vein
Artery Vein 1. Direction of blood flow is from heart to other body parts Direction of blood flow is from body parts to heart 2. Carries oxygenated (pure)...
- Heart, Blood & Blood Vessels- Facts
The human body has approximately 37,000 miles of capillaries.The aorta, which is largest artery located in the body, is about the diameter of a garden hose.Women hearts beat faster than men.Three years after a person quits smoking, there chance of having...