A Simple Key For anatomy human heart Unveiled
A Simple Key For anatomy human heart Unveiled
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cone photoreceptor – among the two varieties of retinal receptor cell which is specialised for colour vision with the utilization of three photopigments distributed via three separate populations of cells.
antithrombin – anticoagulant that inactivates aspect X and opposes the conversion of prothrombin (variable II) into thrombin inside the widespread pathway.
atrioventricular bundle branches – (also, left or suitable bundle branches) specialised myocardial conductile cells that occur in the bifurcation in the atrioventricular bundle and pass through the interventricular septum; cause the Purkinje fibres as well as to the correct papillary muscle via the moderator band.
frequent iliac vein – among a set of veins that flows in to the inferior vena cava at the extent of L5; the still left typical iliac vein drains the sacral location; divides into external and interior iliac veins near the inferior part of the sacroiliac joint
Consequently, the motions with the body and its parts, every one of the way from your lunge with the football participant to the delicate manipulations of the handicraft artist or of the usage of difficult devices by a scientist, are created feasible by separate and particular person engineering arrangements among muscle and bone.
anterior cavity – much larger body cavity Found anterior into the posterior (dorsal) body cavity; involves the serous membrane-lined pleural cavities with the lungs, pericardial cavity for the heart, and peritoneal cavity for that abdominal and check here pelvic organs; also known as ventral cavity.
Mind – the massive organ of the central nervous program made up of white and grey matter, contained throughout the cranium and ongoing Along with the spinal twine.
cytoskeleton – “skeleton” of a mobile; fashioned by rod-like proteins that assist the mobile’s shape and provide, among other features, locomotive qualities.
aortic arch – arc that connects the ascending aorta on the descending aorta; finishes at the intervertebral disk between the fourth and fifth thoracic vertebrae.
apical ectodermal ridge – enlarged ridge of ectoderm at the distal stop of the limb bud that stimulates advancement and elongation in the limb.
basilar artery – formed from your fusion of the two vertebral arteries; sends branches into the cerebellum, Mind stem, plus the posterior cerebral arteries; the principle blood offer towards the brain stem.
astrocyte – star-shaped cell in the central nervous procedure that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes to your formation on the blood-brain barrier.
Broca’s area – area of the frontal lobe check here connected to the motor commands needed for speech production and Situated only from the cerebral hemisphere answerable for language production, that's the left side in somewhere around ninety five percent on the inhabitants.
allantois – finger-like outpocketing of yolk sac types the primitive excretory duct on the embryo; precursor on the urinary bladder.