| 单词 | hilum |
| 例句 | The medial surface of each lung contains an area known as the hilum where vessels enter and exit. Fundamentals of Biology 2015-01-01T00:00:00Z Internally, the kidney has three regions—an outer cortex, a medulla in the middle, and the renal pelvis in the region called the hilum of the kidney. Biology for AP Courses 2022-06-09T00:00:00Z The medial-facing hila are tucked into the sweeping convex outline of the cortex. Anatomy and Physiology 2013-06-19T00:00:00Z An appendage growing at or about the hilum of a seed. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z At the extremity most remote from the hilum, as the embryo, or inverted with respect to the seed, as the radicle. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z The form of the hilum is constant throughout a genus, and sometimes also in whole tribes. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The hilum is the concave part of the bean-shape where blood vessels and nerves enter and exit the kidney; it is also the point of exit for the ureters. Biology for AP Courses 2022-06-09T00:00:00Z Emerging from the hilum is the renal pelvis, which is formed from the major and minor calyxes in the kidney. Anatomy and Physiology 2013-06-19T00:00:00Z Seeds several, with a strophiole at the hilum.—Shrubs, with stiff green branches, leaves mostly digitately 3-foliolate, and large bright yellow flowers. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The hilum or base of the seed, and the chalaza or base of the nucellus are united by means of the raphe r. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z In the Cetacea this transverse opening is kidney-shaped, the hilum of the kidney being above. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The arteries, veins, and nerves that supply the kidney enter and exit at the renal hilum. Biology for AP Courses 2022-06-09T00:00:00Z Name the structures found in the renal hilum. Anatomy and Physiology 2013-06-19T00:00:00Z Pod splitting wholly or part-way down into 3 or at length into 6 valves; seeds many, naked at the hilum. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z In an orthotropal seed the embryo is inverted or antitropal, the radicle pointing to the apex of the seed, or to the part opposite the hilum. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z The part by which the ovule is attached to the placenta or cord is its base or hilum, the opposite extremity being its apex. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z Internally, the kidney has three layers: an outer cortex, the middle hilum, and the inner renal pelvis. Biology for AP Courses 2022-06-09T00:00:00Z Ureters, blood vessels, lymph vessels, and nerves enter and leave at the renal hilum. Anatomy and Physiology 2013-06-19T00:00:00Z Pod splitting to the base into 3 entire valves; seeds many, usually rough, naked at the hilum; flowers solitary and terminal or cymose; root in our species perennial, except in n. 4. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z On the anterior surface there is a transverse sulcus or hilum from which a large vein emerges. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z In such an ovule a straight line drawn from the hilum to the micropyle passes along the axis of the ovule. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z Blood enters and exits the kidney at the renal hilum, and the renal blood supply starts with the branching of the aorta into the renal arteries. Biology for AP Courses 2022-06-09T00:00:00Z The primary bronchi enter the lungs at the hilum, a concave region where blood vessels, lymphatic vessels, and nerves also enter the lungs. Anatomy and Physiology 2013-06-19T00:00:00Z Inverted and straight, with the micropyle next the hilum and the radicle consequently inferior. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z It will be found to be composed of minute grains or granules, the largest of which are made up of coats or layers, like an onion, arranged around a central spot called the hilum. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers The adnate portion of the funiculus, which appears as a ridge or cord extending from the hilum to the chalaza, and which distinguishes this kind of ovule, is called the Rhaphe. The Elements of Botany For Beginners and For Schools Blood enters and exits the kidney at the renal hilum, and the renal blood supply starts with the branching of the aorta into the renal arteries. Biology for AP Courses 2022-06-09T00:00:00Z The pulmonary plexus is a region on the lung root formed by the entrance of the nerves at the hilum. Anatomy and Physiology 2013-06-19T00:00:00Z An excrescence or appendage at or about the hilum of a seed. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Cassava starch has a stellate hilum, which readily distinguishes it under the microscope from other starches. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4 "Carnegie Andrew" to "Casus Belli" Rhaphe, the line or ridge which runs from the hilum to the chalaza in anatropous and amphitropous seeds. The Elements of Botany For Beginners and For Schools Blood enters and exits the kidney at the renal hilum, and the renal blood supply starts with the branching of the aorta into the renal arteries. Biology for AP Courses 2022-06-09T00:00:00Z Once the blood is oxygenated, it drains from the alveoli by way of multiple pulmonary veins, which exit the lungs through the hilum. Anatomy and Physiology 2013-06-19T00:00:00Z All the Coprini have the spores oval, ovoid, more or less elongated or attenuated from the hilum, which is more translucent than the rest of the spore. Fungi: Their Nature and Uses The line or ridge which runs from the hilum to the chalaza. Manual of American Grape-Growing The same, cut through lengthwise: a, the hilum; c, chalaza; d, outer seed coat; e, inner seed-coat; f, the albumen; g, the minute embryo. The Elements of Botany For Beginners and For Schools Blood enters and exits the kidney at the renal hilum, and the renal blood supply starts with the branching of the aorta into the renal arteries. Biology for AP Courses 2022-06-09T00:00:00Z The visceral and parietal pleurae connect to each other at the hilum. Anatomy and Physiology 2013-06-19T00:00:00Z The germ filament which they produce springs habitually from the side, at a short distance from the hilum, which indicates the point of attachment to the original spicule. Fungi: Their Nature and Uses Ovary very large, downy, ovoid, 5-angled, with 5 compartments, each containing many kidney-shaped seeds with numerous grooves concentric at the hilum. The Medicinal Plants of the Philippines Orthotropous ovule of Buckwheat: c, hilum and chalaza; f, orifice. The Elements of Botany For Beginners and For Schools On the other face of the grain which is towards the palea, the hilum is seen at the base. A Handbook of Some South Indian Grasses As urine is formed, it drains into the calyces of the kidney, which merge to form the funnel-shaped renal pelvis in the hilum of each kidney. Anatomy and Physiology 2013-06-19T00:00:00Z At the time of harvesting, the seeds are deep indigo-blue, the hilum being white. The Field and Garden Vegetables of America Containing Full Descriptions of Nearly Eleven Hundred Species and Varietes; With Directions for Propagation, Culture and Use. This scar, also called hilum, is where the seed was attached to the seed vessel. The First Book of Farming Campylotropous ovule of a Chickweed: c, hilum and chalaza; f, orifice. The Elements of Botany For Beginners and For Schools It corresponds, however, with a straight subclavated line running from the hilum to the elevation whence the curved line originates, although this correspondence is not always well marked. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries He considers the centre of the hilum as the base, and the chalaza, where it exists, as the natural apex of the seed. Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 Class II.—The concentric rings are all but invisible, the hilum is stellate. Scientific American Supplement, No. 799, April 25, 1891 Note that each starch granule shows an eccentric hilum with concentric markings. A Practical Physiology Amphitropous ovule of Mallow: f, orifice; h, hilum; r, rhaphe; c, chalaza. The Elements of Botany For Beginners and For Schools From this instance it may be assumed that the hilum may only be defined correctly as the spot of union between the body of the seed and the funiculus. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries The position of the hypocotyls was observed during four successive days, and they continued to bend towards the hilum and lower surface of the seed. The Power of Movement in Plants Class III.—The concentric rings are all but invisible, also the hilum in the majority of granules. Scientific American Supplement, No. 799, April 25, 1891 Resembles C. grahami, but with fewer and more slender pubescent spines, longer and less rigid central, more exserted fruit, and much larger reddish and strongly pitted seeds with subventral hilum. North American Species of Cactus Seed of a Linden or Basswood cut through lengthwise, and magnified, the parts lettered: a, the hilum or scar; b, the outer coat; c, the inner; d, the albumen; e, the embryo. The Elements of Botany For Beginners and For Schools |
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