The slender S-shaped clavicle (derived from latin word clāvis meaning key) is the only direct skeletal attachment between trunk and the upper limb. Other names for Clavicle are: Collar bone Beauty bone Peculiarities of Clavicle: It has no medullary cavity It is the first bone to ossify in the fetus (5th-6th week) It is the […]
Read MoreDefinition: A network of spinal nerves that originates in the back of the neck, extends through the axilla (armpit), and gives rise to nerves to the upper limb. The brachial plexus is formed by the union of portions of the 5th through 8th cervical nerves (C5-C8) and the first thoracic nerve (T1), all of which […]
Read MoreArteries,veins,nerves,plexus, muscles- origin,insertion,function, landmarks, surface anatomy,histology and so on are what makes anatomy a vast subject and most difficult for human brain to remember. Anatomy is like mathematics, if you are right you score and if you are wrong its a nil. Anatomy may be fun to study but when it comes to memorizing things, […]
Read MoreUpper Motor Neurones (UMN), Lower Motor Neurone (LMN) and their Lesions All the neurons contributing to the pyramidal and extrapyramidal systems should be called upper motor neurons (UMN). The anterior horn cells and the related neurons in the motor nuclei of some cranial nerves are called lower motor neurons (LMN). Axons of these cells give […]
Read MoreThe arterial tree begins from the aorta. After the aorta leaves the heart, it divides into the ascending aorta, the aortic arch, and the descending aorta. The branches of the arch of aorta can be remembered as ABCS: A = Arch of Aorta B = Brachiocephalic artery C = Left common carotid artery S = […]
Read MoreAnterior abdominal wall consists of following layers outside to in- Skin: Superficial fascia: Superficial fatty layer of Camper Deep fibrous layer of Scarpa Muscles of Anterior Abdominal wall: External oblique: Outer surface of lower 8 ribs → Xiphoid, linea alba, Pubic crest, Pubic tubercle, Anterior ½ pubic crest Internal oblique: Lumbar fascia, Anterior 2/3 iliac crest, […]
Read MoreAll are about 45 cms or 18 inches: Length of Vas deferens or ductus deferens Length of thoracic duct Length of Spinal cord Femur (for 6 feet person) Length of transverse colon Distance from the incisor teeth to the cardiac end of the stomach Umbilical cord at birth Length of sartorius muscle All are about […]
Read MoreDefinition: The ureters are a pair of muscular tubes which convey the urine from kidneys (renal pelvis) to the urinary bladder. Size and Extent: Length: About 25 cm (10 inches) Diameter: About 3 mm Extent: Pelviureteric junction to urinary bladder Location: Retroperitoneal structure in the posterior abdominal wall (upper part) and lateral pelvic wall (lower […]
Read MoreTranspyloric plane of Addison is an imaginary transverse plane lying halfway between the suprasternal notch or jugular notch (superior margins of the manubrium sterni) and the upper border of symphysis pubis, or approximately a hand’s breadth below the xiphoid. The pylorus of stomach may be located on this plane in the supine or prone positions, […]
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