Inferior Suprarenal Artery
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Inferior Suprarenal Artery
The inferior suprarenal artery is a paired artery that supplies the adrenal gland. It usually originates at the trunk of the renal artery before its terminal division, but with many common variations. It supplies the adrenal gland parenchyma, the ureter, and the surrounding cellular tissue and muscles. Structure The inferior suprarenal artery usually originates at the trunk of the renal artery. This is usually on its superior surface before its terminal division. It enters the parenchyma of the adrenal gland. Variations Variations in the interior suprarenal artery are common. It usually originates from the renal artery before its final divisions, but may also originate as a final division or after the final divisions. More rarely, it may originate directly from the aorta. It may give off a small branch to the kidney. There may be two or three inferior suprarenal arteries in some people. Its diameter changes significantly with age. Function The inferior suprarenal artery ...
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Posterior (anatomy)
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek language, Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axis, anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabular ...
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Aorta
The aorta ( ) is the main and largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries). The aorta distributes oxygenated blood to all parts of the body through the systemic circulation. Structure Sections In anatomical sources, the aorta is usually divided into sections. One way of classifying a part of the aorta is by anatomical compartment, where the thoracic aorta (or thoracic portion of the aorta) runs from the heart to the diaphragm. The aorta then continues downward as the abdominal aorta (or abdominal portion of the aorta) from the diaphragm to the aortic bifurcation. Another system divides the aorta with respect to its course and the direction of blood flow. In this system, the aorta starts as the ascending aorta, travels superiorly from the heart, and then makes a hairpin turn known as the aortic arch. Following the aortic arch ...
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Waynesburg College
Waynesburg University is a private university in Waynesburg, Pennsylvania. It was established in 1850 and offers undergraduate and graduate programs in more than 70 academic concentrations. The university enrolls over 2,500 students, including approximately 1,800 undergraduates. History In honor of General Anthony Wayne, the university was founded in 1849 as Waynesburg College by the Cumberland Presbyterian Church — now affiliated with the Presbyterian Church (USA) — and was officially established with a charter by the Commonwealth of Pennsylvania in 1850. Waynesburg University is located on a contemporary campus on the hills of southwestern Pennsylvania, and has also facilities in the Greater Pittsburgh Region. Miller Hall and Hanna Hall are listed on the National Register of Historic Places. Academics Curriculum Waynesburg University offers Bachelor's and Master's degrees in up to 70 majors and minors. Accreditation The university is accredited by the Middle States ...
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Middle Suprarenal Arteries
The middle suprarenal artery (middle capsular artery) is a paired artery in the abdomen. It is a branch of the aorta. It supplies the adrenal gland. Structure Origin The middle suprarenal artery (usually) arises from lateral aspect of the abdominal aorta. Its origin occurs at roughly the same level as that of the superior mesenteric artery. Course The vessel passes laterally and slightly superior-ward, passing over the crura of the diaphragm to reach the surface of the ipsilateral suprarenal gland, whereupon it forms anastomoses with the other suprarenal arteries. Relations The anatomical relations of the left and right middle superior artery differ. The right vessel crosses the inferior vena cava posteriorly near the right celiac ganglion. The left vessel passes near the right celiac ganglion, superior margin of the spleen, and splenic artery. Variation There is usually a single middle suprarenal artery (on either side of the body), but in some individuals, th ...
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Superior Suprarenal Artery
The superior suprarenal artery is an artery in the abdomen. It is a branch of the inferior phrenic artery, itself a branch of the aorta. It supplies the adrenal gland. Structure The superior suprarenal artery is a branch of the inferior phrenic artery. There may be multiple branches, each of which is fairly small. The inferior phrenic artery is itself is a branch of the aorta. The phrenic artery supplies the diaphragm. Function The superior suprarenal artery supplies the adrenal gland. It may be more important during prenatal development. Clinical significance The superior suprarenal artery may be assessed using Doppler ultrasound. History The superior suprarenal artery may also be known as the superior adrenal artery. See also * Middle suprarenal arteries * Inferior suprarenal artery The inferior suprarenal artery is a paired artery that supplies the adrenal gland. It usually originates at the trunk of the renal artery before its terminal division, but with man ...
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Aorta
The aorta ( ) is the main and largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it splits into two smaller arteries (the common iliac arteries). The aorta distributes oxygenated blood to all parts of the body through the systemic circulation. Structure Sections In anatomical sources, the aorta is usually divided into sections. One way of classifying a part of the aorta is by anatomical compartment, where the thoracic aorta (or thoracic portion of the aorta) runs from the heart to the diaphragm. The aorta then continues downward as the abdominal aorta (or abdominal portion of the aorta) from the diaphragm to the aortic bifurcation. Another system divides the aorta with respect to its course and the direction of blood flow. In this system, the aorta starts as the ascending aorta, travels superiorly from the heart, and then makes a hairpin turn known as the aortic arch. Following the aortic arch ...
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Adrenal Gland
The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys. Each gland has an outer cortex which produces steroid hormones and an inner medulla. The adrenal cortex itself is divided into three main zones: the zona glomerulosa, the zona fasciculata and the zona reticularis. The adrenal cortex produces three main types of steroid hormones: mineralocorticoids, glucocorticoids, and androgens. Mineralocorticoids (such as aldosterone) produced in the zona glomerulosa help in the regulation of blood pressure and electrolyte balance. The glucocorticoids cortisol and cortisone are synthesized in the zona fasciculata; their functions include the regulation of metabolism and immune system suppression. The innermost layer of the cortex, the zona reticularis, produces androgens that are converted to fully functional sex hormones in the gonads ...
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Doppler Ultrasonography
Doppler ultrasonography is medical ultrasonography that employs the Doppler effect to perform imaging of the movement of tissues and body fluids (usually blood), and their relative velocity to the probe. By calculating the frequency shift of a particular sample volume, for example, flow in an artery or a jet of blood flow over a heart valve, its speed and direction can be determined and visualized. Duplex ultrasonography sometimes refers to Doppler ultrasonography or spectral Doppler ultrasonography. Doppler ultrasonography consists of two components: brightness mode (B-mode) showing anatomy of the organs, and Doppler mode (showing blood flow) superimposed on the B-mode. Meanwhile, spectral Doppler ultrasonography consists of three components: B-mode, Doppler mode, and spectral waveform displayed at the lower half of the image. Therefore, "duplex ultrasonography" is a misnomer for spectral Doppler ultrasonography, and more exact name should be "triplex ultrasonography". This ...
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Nature Reviews Urology
''Nature Reviews Urology'' is a monthly peer-reviewed medical journal published by Nature Portfolio. It covers all aspects of urology. The journal was established in 2004 as ''Nature Clinical Practice Urology'' and obtained its current title in April 2009. The editor-in-chief is Annette Fenner. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ... of 16.430, ranking it 4th out of 90 journals in the category "Urology & Nephrology". References External links * {{Georg von Holtzbrinck Publishing Group Nature Research academic journals Publications established in 2004 Urology journals Monthly journals English-language journals Review journals ...
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Aneurysm
An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. Aneurysms may be a result of a hereditary condition or an acquired disease. Aneurysms can also be a nidus (starting point) for clot formation (thrombosis) and embolization. As an aneurysm increases in size, the risk of rupture, which leads to uncontrolled bleeding, increases. Although they may occur in any blood vessel, particularly lethal examples include aneurysms of the Circle of Willis in the brain, aortic aneurysms affecting the thoracic aorta, and abdominal aortic aneurysms. Aneurysms can arise in the heart itself following a heart attack, including both ventricular and atrial septal aneurysms. There are congenital atrial septal aneurysms, a rare heart defect. Etymology The word is from Greek: ἀνεύρυσμα, aneurysma, "dilation", from ἀνευρύνειν, aneurynein, "to dilate". Classification Aneurysms are classified by type, ...
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Skeletal Muscle
Skeletal muscles (commonly referred to as muscles) are organs of the vertebrate muscular system and typically are attached by tendons to bones of a skeleton. The muscle cells of skeletal muscles are much longer than in the other types of muscle tissue, and are often known as muscle fibers. The muscle tissue of a skeletal muscle is striated – having a striped appearance due to the arrangement of the sarcomeres. Skeletal muscles are voluntary muscles under the control of the somatic nervous system. The other types of muscle are cardiac muscle which is also striated and smooth muscle which is non-striated; both of these types of muscle tissue are classified as involuntary, or, under the control of the autonomic nervous system. A skeletal muscle contains multiple muscle fascicle, fascicles – bundles of muscle fibers. Each individual fiber, and each muscle is surrounded by a type of connective tissue layer of fascia. Muscle fibers are formed from the cell fusion, fusion of ...
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Elsevier
Elsevier () is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell'', the ScienceDirect collection of electronic journals, '' Trends'', the '' Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services also include digital tools for data management, instruction, research analytics and assessment. Elsevier is part of the RELX Group (known until 2015 as Reed Elsevier), a publicly traded company. According to RELX reports, in 2021 Elsevier published more than 600,000 articles annually in over 2,700 journals; as of 2018 its archives contained over 17 million documents and 40,000 e-books, with over one billion annual downloads. Researchers have criticized Elsevier for its high profit marg ...
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