What Does human anatomy and physiology notes Mean?

blastocyst – term with the conceptus in the developmental stage that is made of about a hundred cells formed into an interior mobile mass that may be fated to be the embryo and an outer trophoblast that is definitely fated to become the related foetal membranes and placenta.

diffusion – movement of a compound from an area of higher concentration to 1 of reduced focus.

coronary arteries – branches with the ascending aorta that provide blood to the heart; the left coronary artery feeds the remaining side with the heart, the still left atrium and ventricle, as well as the interventricular septum; the appropriate coronary artery feeds the ideal atrium, parts of each ventricles, and also the heart conduction method.

central canal – longitudinal channel in the centre of every osteon; incorporates blood vessels, nerves, and lymphatic vessels; also referred to as the Haversian canal.

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DNA polymerase – enzyme that features in introducing new nucleotides to the developing strand of DNA throughout DNA replication.

calcitonin – peptide hormone manufactured and secreted by the parafollicular cells (C cells) of the thyroid gland that capabilities to get more info lower blood calcium amounts.

anterior interventricular sulcus – sulcus located concerning the left and suitable ventricles over the anterior floor in the heart.

atrial natriuretic peptide (ANP) – peptide hormone made by the partitions of your atria in response to check here high hypertension, blood volume, or blood sodium that reduces the reabsorption of sodium and h2o during the kidneys and encourages vasodilation.

acrosomal response – release of digestive enzymes by sperm that allows them to burrow from the corona radiata and penetrate the zona pellucida of the oocyte prior to fertilisation.

central nervous method (CNS) – anatomical division from the anxious system Found within the cranial and vertebral cavities, particularly the brain and spinal wire.

astrocyte – star-shaped mobile within the central anxious procedure that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes for the development from the blood-brain barrier.

connective tissue – style of tissue that serves to hold in place, join, and combine the body’s organs and devices.

basement membrane – in epithelial tissue, a thin layer of fibrous substance that anchors the epithelial tissue into the underlying connective tissue; built up with the basal lamina and reticular lamina.

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