5 Simple Techniques For human anatomy and physiology definition
5 Simple Techniques For human anatomy and physiology definition
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ascending tract – central nervous method fibres carrying sensory details in the spinal wire or periphery on the Mind.
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Adjustments within an organism’s interior natural environment, such as enhanced body temperature, can result in the responses of sweating as well as the dilation of blood vessels inside the pores and skin so that you can lower body temperature, as proven by the runners in Figure one.seven.
adrenaline – Most important and most strong catecholamine hormone secreted through the adrenal medulla in reaction to quick-phrase stress.
articular tubercle – smooth ridge located to the inferior skull, immediately anterior to the mandibular fossa.
adrenal vein – drains the adrenal or suprarenal glands which are quickly superior to the kidneys; the right adrenal vein enters the inferior vena cava instantly as well as the still left adrenal vein enters the left renal vein.
brain – the large organ on the central nervous program made up of white and grey make a difference, contained inside the cranium and ongoing Along with the spinal wire.
basal nuclei – nuclei from the cerebrum (that has a number of factors from the upper brain stem and diencephalon) which are responsible for examining cortical motion instructions and evaluating them with the general condition of the individual by means of broad modulatory activity of dopamine neurons; largely linked to motor features, as evidenced through the symptoms of Parkinson’s and Huntington’s diseases.
axoplasm – cytoplasm of the axon, which is different in composition compared to the cytoplasm of the neuronal cell body.
ascending pathway – fibre structure that relays sensory information in the periphery in the spinal cord and brain stem to other buildings from the brain.
blood colloidal osmotic stress (BCOP) – strain exerted by colloids suspended in blood in just a vessel; a Most important determinant may click here be the presence of plasma proteins.
bedsore – sore about the skin that develops when areas here on the body start out necrotising as a consequence of constant pressure and not enough blood source; also known as decubitis ulcers.
blood-brain barrier (BBB) – physiological barrier concerning the circulatory technique and also the central anxious method that establishes a privileged blood offer, proscribing the movement of substances in the CNS.
corona radiata – in an oocyte, a layer of granulosa cells that surrounds the oocyte Which need to be penetrated by sperm ahead of fertilisation can take place.