The circulation in plants, in the lower animals, and in manLongmans, Green, and Company, 1908 - Biology |
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Common terms and phrases
ants aorta apex arrangement auricle auriculo-ventricular bees bird bladder blood blood-vessels body brain branches capillary cause cavities centre circulation coils connected consists contraction Darwin direction elongating existence external fact figure-of-8 filaments fluid foetal force function ganglia ganglion glands heart higher animals inorganic insectivorous plants insects involuntary irritability larvæ layer leaf leaves left ventricle left-handed spiral living longitudinal lungs mammal matter membrane motor nerves mucous muscles muscular fibres musculi papillares natural selection nerve cells nerve fibres nervous system oblique occur oesophagus opening and closing ovum particles placenta plants and animals Plate portion posterior produced pulmonary artery reflex action regarded resemble reversing right auricle right ventricle roots sarcous elements seen segments semilunar valves sense organs sensitive sensory shorten showing sound species sphincter spinal cord spontaneous stem stomach structures substance sundew surface tendrils tissues transverse tricuspid valves tube twisted uterus veins venous ventricular vessels vibrations vital voluntary