A Simple Key For anatomy human heart Unveiled

A Simple Key For anatomy human heart Unveiled

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cone photoreceptor – on the list of two kinds of retinal receptor mobile which is specialised for colour vision throughout the utilization of three photopigments dispersed as a result of three separate populations of cells.

diencephalon – location in the adult brain that retains its name from embryonic advancement and features the thalamus and hypothalamus.

cortical reaction – following fertilisation, the release of cortical granules from the oocyte’s plasma membrane in to the zona pellucida developing a fertilisation membrane that forestalls any further attachment or penetration of sperm; part of the gradual block to polyspermy.

dentin – bone-like tissue immediately deep into the enamel from the crown or cementum of the root of a tooth.

ciliary body – sleek muscle composition on the inside surface area with the iris that controls the shape from the lens from the zonule fibres.

adrenal vein – drains the adrenal or suprarenal glands which might be straight away outstanding to your kidneys; the right adrenal vein enters the inferior vena cava specifically along with the remaining adrenal vein enters check here the left renal vein.

depolarise – to lessen the voltage distinction between The within and out of doors of the cell’s plasma membrane (the sarcolemma to get a muscle mass fibre), making The within less damaging than at rest.

dorsal – describes the again or path towards the again with the body; also called posterior.

atrial natriuretic peptide (ANP) – peptide hormone produced by the walls with the atria in reaction to significant blood pressure level, blood volume, or blood sodium that decreases the reabsorption of sodium and water inside the kidneys and encourages vasodilation.

acetabular labrum – lip of fibrocartilage that surrounds outer margin of your acetabulum within the hip bone.

bone marrow – tissue observed inside bones; the location of all blood mobile differentiation and maturation of B lymphocytes.

corneal reflex – protecting reaction to stimulation in the check here cornea resulting in contraction from the orbicularis oculi muscle leading to blinking of the eye.

anterior – describes the entrance or direction towards the front with the body; also called ventral.

bronchus – tube linked to the trachea that branches into many subsidiaries and supplies a passageway for air to enter and go away the lungs.