Studies in Physiology, Anatomy and HygieneMacmillan Company, 1903 - 332 páginas |
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Página 112
... dorsal surface Gullet --- Aortic arches Reproductive organs Crop- Dorsal --- blood vessel Crop- Gizzard-- Stomach intestine - Gizzard - --Dorsal blood vessel -Stomach .. intestine Ganglia of ventral nerve chains Body wall of ventral ...
... dorsal surface Gullet --- Aortic arches Reproductive organs Crop- Dorsal --- blood vessel Crop- Gizzard-- Stomach intestine - Gizzard - --Dorsal blood vessel -Stomach .. intestine Ganglia of ventral nerve chains Body wall of ventral ...
Página 142
... through the dorsal part of the chest cavity and , piercing the diaphragm , it enters the abdomen . Three regions of the aorta , therefore , can be distinguished : first the arch of the aorta , second 142 STUDIES IN PHYSIOLOGY.
... through the dorsal part of the chest cavity and , piercing the diaphragm , it enters the abdomen . Three regions of the aorta , therefore , can be distinguished : first the arch of the aorta , second 142 STUDIES IN PHYSIOLOGY.
Página 154
... dorsal surface of a living earthworm , we see through the skin a tube through which the blood is driven in pulses . This is called the dorsal blood vessel . Near the anterior end of the body , five pairs of large blood vessels ( a - or ...
... dorsal surface of a living earthworm , we see through the skin a tube through which the blood is driven in pulses . This is called the dorsal blood vessel . Near the anterior end of the body , five pairs of large blood vessels ( a - or ...
Página 155
... dorsal blood vessel and of the five aortic arches described above . It has been proved that the blood flows through the dorsal vessel from the tail toward the head end of the worm , whence it is driven down to the ventral vessel by the ...
... dorsal blood vessel and of the five aortic arches described above . It has been proved that the blood flows through the dorsal vessel from the tail toward the head end of the worm , whence it is driven down to the ventral vessel by the ...
Página 156
... Dorsal aorta -Arteries to kidneys Kidneys --Arteries to legs FIG . 61. Arteries in the Circulation of the Frog . - left auricle , as is the case in the human heart , receives the blood that has taken up oxygen in the lungs , while to ...
... Dorsal aorta -Arteries to kidneys Kidneys --Arteries to legs FIG . 61. Arteries in the Circulation of the Frog . - left auricle , as is the case in the human heart , receives the blood that has taken up oxygen in the lungs , while to ...
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Términos y frases comunes
acid alcohol alimentary canal amoeba amount animal aorta arteries auricle bacteria becomes blood vessels bones bottle brain branches burning called capillaries carbohydrates carbon dioxid carried cartilage cell body chemical color composed compounds connective tissue dermis digestion dorsal duct epidermis experiments finger food materials frog functions gastric juice glands grape sugar hand heart heat Hence inclosed ingredients kidneys kind Laboratory Exercises Latin layer legs less liquid liver lungs lymph meat membrane microscope milk mineral matters mouth cavity mucous muscles muscular nerve fibers nervous system nitrogen nucleus nutrients opening organs outer oxidation oxygen pancreatic pancreatic juice papillæ passes phosphorus proteids protoplasm pulmonary red corpuscles region respiration ribs side skeleton skin small intestine spinal column spinal cord spinal nerves starch stomach structure substance sulphur supply surface teeth throat tion tongue tube upper valves veins ventral ventricle vertebrates walls waste windpipe yeast
Pasajes populares
Página 285 - My mind seems to have become a kind of machine for grinding general laws out of large collections of facts ; but why this should have caused the atrophy of that part of the brain alone on which the higher tastes depend, I cannot conceive.
Página 285 - I suppose, have thus suffered; and if I had to live my life again, I would have made a rule to read some poetry and listen to some music at least once every week; for perhaps the parts of my brain now atrophied would thus have been kept active through use.
Página 282 - Could the young but realize how soon they will become mere walking bundles of habits, they would give more heed to their conduct while in the plastic state.
Página 283 - As we become permanent drunkards by so many separate drinks, so we become saints in the moral, and authorities and experts in the practical and scientific spheres, by so many separate acts and hours of work.
Página 283 - I won't count this time." Well ! he may not count it, and a kind Heaven may not count it ; but it is being counted none the less. Down among his nerve cells and fibers the molecules are counting it, registering and storing it up to be used against him when the next temptation comes.
Página 283 - Let no youth have any anxiety about the upshot of his education, whatever the line of it may be. If he keep faithfully busy each hour of the working day, he may safely leave the final result to itself. He can with perfect certainty count on waking up some fine morning to find himself one of the competent ones of his generation, in whatever pursuit he may have singled out..
Página 62 - The use of intoxicants by employes while on duty is prohibited. Their habitual use, or the frequenting of places where they are sold, is sufficient cause for dismissal.
Página 56 - First, extremely little of the alcohol was given off from the body unconsumed ; indeed, it was oxidized, ie, burned as completely as bread, meat, or any other food. Second, in the oxidation all of the potential energy of the alcohol was transformed into heat or muscular power. In other words, the body transformed the energy of the alcohol as it did that of sugar, starch, and other ordinary food materials.
Página 243 - A party of engineers were surveying in the Sierra Nevadas. They camped at a great height above the sea level, where the air was very cold and they were chilled and uncomfortable. Some of them drank a little whisky and felt less uncomfortable ; some of them drank a lot of whisky and went to bed feeling very jolly and comfortable indeed. But in the morning the men who had not taken any whisky got up in good condition ; those who had taken a little whisky got up feeling very miserable ; the men who...