The Ultimate Guide To human anatomy & physiology
The Ultimate Guide To human anatomy & physiology
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atrioventricular valves – 1-way valves Positioned involving the atria and ventricles; the valve on the proper is called the tricuspid valve, plus the a single within the left could be the mitral or bicuspid valve.
cuticle – in hair, the outermost layer of keratinocytes originating through the hair matrix, as noticed in a cross-area from the hair bulb.
basilic vein – superficial vein in the arm that occurs through the palmar venous arches, intersects While using the median cubital vein, parallels the ulnar vein, and proceeds in to the upper arm; along with the brachial vein, it results in the axillary vein.
costal cartilage – hyaline cartilage composition hooked up to your anterior conclude of each rib that gives for either immediate or indirect attachment of most ribs to the sternum.
anterior cranial fossa – shallowest and most anterior cranial fossa of the cranial base that extends in the frontal bone to your lesser wing of the sphenoid bone.
coeliac trunk – (also, coeliac artery) major branch in the abdominal aorta; presents increase towards the remaining gastric artery, the splenic artery, plus the widespread hepatic artery that forms the hepatic artery towards the liver, the proper gastric artery towards the tummy, plus the cystic artery into the gall bladder.
depolarise – to lessen the voltage distinction between The within and out of doors of a mobile’s plasma membrane (the sarcolemma for just a muscle fibre), earning The within less destructive than at relaxation.
defensins – antimicrobial proteins introduced from neutrophils and macrophages that make openings from the plasma membranes to get rid of cells.
atrioventricular bundle – (also, bundle of His) group of specialised myocardial conductile cells that transmit the impulse through the AV node in the interventricular septum; human anatomy meaning sort the remaining and suitable atrioventricular bundle branches.
autonomic tone – contractile point out for the duration of resting cardiac exercise made by mild sympathetic and parasympathetic stimulation.
colloid – viscous more info fluid in the central cavity of thyroid follicles, made up of the glycoprotein thyroglobulin.
cardiac reflexes – number of autonomic reflexes that enable the cardiovascular centres to manage heart functionality primarily based on sensory facts from a range of visceral sensors.
electronic arteries – shaped with the superficial and deep palmar arches; supply blood into the digits.
absolute refractory time period – time during an motion interval when A different motion probable can not be created since the voltage-gated Na+ channel is inactivated.