The Single Best Strategy To Use For human anatomy and physiology definition

The Single Best Strategy To Use For human anatomy and physiology definition

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circle of Willis – (also, arterial circle) anastomosis located at the base in the brain that ensures continual blood provide; shaped from branches of The interior carotid and vertebral arteries; provides blood into the Mind.

acclimatisation – strategy of adjustment the respiratory procedure makes as a result of Long-term publicity to higher altitudes.

codon – consecutive sequence of three nucleotides on an mRNA molecule that corresponds to a certain amino acid.

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

cupula – specialised construction inside the base of the semicircular canal that bends the stereocilia of hair cells when The top rotates by way of the relative motion from the enclosed fluid.

central sulcus – area landmark of the cerebral cortex that marks the boundary among the frontal and parietal lobes.

anterior horn – gray make a difference from the spinal wire containing multipolar motor neurons, in some cases known as the ventral horn.

antibodies – (also, immunoglobulins or gamma globulins) antigen-precise proteins made by specialised B lymphocytes that shield the body by binding to foreign objects which include microbes and viruses.

amnion – transparent membranous sac that encloses the building foetus and fills with amniotic fluid.

apical ectodermal ridge – enlarged ridge of ectoderm at the distal finish of the limb bud that stimulates development and elongation of your limb.

anterior cardiac veins – vessels that parallel the small cardiac arteries and drain the anterior surface of the right ventricle; more info bypass the coronary sinus and here drain directly into the appropriate atrium.

cardiac reflexes – series of autonomic reflexes that enable the cardiovascular centres to manage heart function dependent upon sensory info from a number of visceral sensors.

Betz cells – output cells of the main motor cortex that bring about musculature to move by means of synapses on cranial and spinal motor neurons.

axon terminal – conclude of your axon, in which there are generally several branches extending toward the focus on mobile.