All blood vessels follow the same histological makeup. The inner lining is the endothelium, followed by subendothelial connective tissue. Then follows a muscular layer of vascular smooth muscle, which is highly developed in arteries. Finally, there is a further layer of connective tissue termed the adventitia, which contains nerves that supply the muscular layer, as well as nutrient capillaries in the larger blood vessel. Capillaries consist of little more than a layer of endot ...

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Blood vessel, Blood vessel - Types, Blood vessel - Anatomy, Blood vessel - Physiology, Blood vessel - Role in disease

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Blood is composed of several kinds of corpuscles; these formed elements of the blood constitute about 45% of whole blood. The other 55% is blood plasma, a yellowish fluid that is the blood's liquid medium. The normal pH of human arterial blood is approximately 7.40. Blood is about 7% of the human body weight [1], so the average adult has a blood volume of about 5 liters, of which 2.7-3 liters is plasma. The combined surface area of all the erythrocytes in the human anatomy would be roughly 2,000 time ...

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Blood, Blood - Anatomy of blood, Blood - Physiology of blood, Blood - Production and degradation, Blood - Transport of oxygen, Blood - Transport of carbon dioxide, Blood - Transport of hydrogen ions, Blood - Color, Blood - Health and disease, Blood - Ancient medicine, Blood - Diagnosis, Blood - Pathology, Blood - Treatment, Blood - Mythology and religion, Blood - Indo-European paganism, Blood - Judaism, Blood - Christianity, Blood - Jehovah's Witnesses, Blood - Vampire legends, Blood - Chinese and Japanese culture

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Due to its importance to life, blood is associated with a large number of beliefs. One of the most basic is the use of blood as a symbol for family relationships; to be "related by blood" is to be related by ancestry or descendance, rather than marriage. This bears closely to bloodlines, and sayings such as "blood is thicker than water" and "bad blood", as well as "Blood brother". Blood - Indo-European paganism. Among the Germanic tribes (such as the Anglo-Saxons and the Vikings), blood was used during the ...

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Blood, Blood - Anatomy of blood, Blood - Physiology of blood, Blood - Production and degradation, Blood - Transport of oxygen, Blood - Transport of carbon dioxide, Blood - Transport of hydrogen ions, Blood - Color, Blood - Health and disease, Blood - Ancient medicine, Blood - Diagnosis, Blood - Pathology, Blood - Treatment, Blood - Mythology and religion, Blood - Indo-European paganism, Blood - Judaism, Blood - Christianity, Blood - Jehovah's Witnesses, Blood - Vampire legends, Blood - Chinese and Japanese culture

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Physical examination - Height. Height is the anthropometric longitudinal growth of an individual. A statiometer is the device used to measure height although often a height stick is more frequently used for vertical measurement of adults or children older than 2. The patient is asked to stand barefoot. Height declines during the day because of compression of the intervertebral discs. Children under age 2 are measured lying horizontally.

Physical examination, Physical examination - Vital Signs, Physical examination - Temperature, Physical examination - Blood pressure, Physical examination - Pulse, Physical examination - Basic biometrics, Physical examination - Height, Physical examination - Weight, Physical examination - Pain, Physical examination - Structure of the written examination record, Physical examination - General appearance, Physical examination - Organ systems, Physical examination - Special examinations

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The papillary muscles tether the mitral valve (the valve between the left atrium and the left ventricle) and the tricuspid valve (the valve between the right atrium and the right ventricle) to the wall of the heart. If the papillary muscles are not functioning properly, the mitral valve leaks during contraction of the left ventricule. This causes some of the blood to travel "in reverse", from the left ventricle to the left atrium, instead of forward to the aorta and the rest of the bo ...

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Coronary circulation, Coronary circulation - Coronary anatomy, Coronary circulation - Left coronary artery, Coronary circulation - Right coronary artery, Coronary circulation - Coronary artery dominance, Coronary circulation - Blood supply of the papillary muscles, Coronary circulation - Coronary flow

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Physical examination - General appearance. Obvious apparent features as the patient enters the consulting room and in the course of taking the history (e.g. mobility problem or deafness) JACCOL, a mnemonic for Jaundice, suggestion of Anaemia (pale colour of skin or conjunctiva), Cyanosis (blue coloration of lips or extremities), Clubbing of fingernails, Oedema of ankles, Lymph nodes of neck, armpits, groins. Physical examination - Organ systems. Card ...

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Physical examination, Physical examination - Vital Signs, Physical examination - Temperature, Physical examination - Blood pressure, Physical examination - Pulse, Physical examination - Basic biometrics, Physical examination - Height, Physical examination - Weight, Physical examination - Pain, Physical examination - Structure of the written examination record, Physical examination - General appearance, Physical examination - Organ systems, Physical examination - Special examinations

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