human anatomy definition Secrets

human anatomy definition Secrets

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The adult human skeleton typically contains 206 named bones. These bones is usually grouped in two divisions: axial skeleton and appendicular skeleton.

antithrombin – anticoagulant that inactivates aspect X and opposes the conversion of prothrombin (variable II) into thrombin while in the common pathway.

dense body – sarcoplasmic framework that attaches to the sarcolemma and shortens the muscle as slim filaments slide previous thick filaments.

angiotensinogen – inactive protein while in the circulation produced by the liver; precursor of angiotensin I; should be modified from the enzymes renin and ACE for being activated.

Human Physiology (physio = “character”; -logy = “study”) scientific studies the “nature” from the human body, nature in the feeling of how structures at distinct levels perform. Physiology focuses on function

coronary sinus – significant, slim-walled vein within the posterior area with the heart that lies throughout the atrioventricular sulcus and drains the heart myocardium right into the proper atrium.

bursa – connective tissue sac made up of lubricating fluid that forestalls friction in between adjacent read more constructions, like pores and skin and bone, tendons and bone, or among muscles.

chemical synapse – relationship in between two neurons, or among a neuron and its target, wherever a neurotransmitter check here diffuses across an exceedingly small distance.

antidiuretic hormone (ADH) – hypothalamic hormone that is definitely saved via the posterior pituitary Which alerts the kidneys to reabsorb drinking water.

apical ectodermal ridge – enlarged ridge of ectoderm within the distal conclusion of a limb bud that stimulates advancement and elongation with the limb.

carpometacarpal joint – articulation amongst among the carpal bones from the distal row in addition to a metacarpal bone on the hand.

corneal reflex – protective response to stimulation with the cornea creating contraction from the orbicularis oculi muscle mass leading to blinking of the eye.

coronal suture – joint that unites the frontal bone to the ideal and remaining parietal bones over the top on the skull.

abduction – motion while in the coronal airplane that moves a limb laterally from the body; spreading on the fingers.