About human anatomy & physiology
About human anatomy & physiology
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cone photoreceptor – one of the two different types of retinal receptor cell that is definitely specialised for colour vision through the usage of a few photopigments distributed as a result of three independent populations of cells.
diffusion – movement of the substance from a region of larger concentration to at least one of decreased focus.
cortical reaction – following fertilisation, the release of cortical granules from the oocyte’s plasma membrane in the zona pellucida developing a fertilisation membrane that stops any even more attachment or penetration of sperm; Portion of the gradual block to polyspermy.
anticodon – consecutive sequence of three nucleotides on a tRNA molecule that is complementary to a certain codon on an mRNA molecule.
ciliary body – clean muscle mass framework on the interior surface from the iris that controls The form on the lens from the zonule fibres.
atrial reflex – (also, identified as Bainbridge reflex) autonomic reflex that responds to extend receptors within the atria that mail impulses towards the cardioaccelerator region to boost HR when venous circulation into your atria increases.
The 1st law of thermodynamics holds that Strength can neither be created nor destroyed—it may only alter type. Your basic function as an organism is usually to eat (ingest) Vitality and molecules during the foods you try to eat, convert a few of it into gas for movement, sustain your body functions, and Develop and preserve your body structures. There's two varieties of reactions that attain this: anabolism and catabolism.
chemical synapse – link among two neurons, or in between a neuron and its focus on, exactly where a neurotransmitter diffuses across an exceedingly limited distance.
Lively transportation – sort of transportation throughout the cell membrane that needs enter of mobile Power.
bronchial artery – systemic branch from your aorta that provides oxygenated blood for the lungs In combination get more info with the pulmonary circuit.
bone marrow – tissue identified inside of bones; the site of all blood mobile differentiation and maturation of B lymphocytes.
capillary – smallest of blood vessels the place physical Trade occurs between the blood and tissue cells surrounded by interstitial fluid.
abducens nerve – sixth cranial nerve; responsible get more info for contraction of on the list of extraocular muscles.
brush border – fashioned by microvilli over the area of specific cuboidal cells; in the kidney it truly is found in the PCT; increases area space for absorption inside the kidney.