Petrosal branch (from middle meningeal artery). Function. The head and neck is covered in skin and its appendages, termed the integumentary system.These include hair, sweat glands, sebaceous glands, and sensory nerves.The skin is made up of three microscopic layers: epidermis, dermis, and hypodermis.The epidermis is composed of stratified squamous epithelium and is divided into the following five sublayers or strata, listed Structure. Parasympathetic nerve supply arises through three primary areas: Certain cranial nerves in the cranium, namely the preganglionic parasympathetic nerves (CN III, CN VII, CN IX and CN X) usually arise from specific nuclei in the central nervous system (CNS) and The pulmonary circulation is the portion of the cardiovascular system in which oxygen-depleted blood is pumped away from the heart, via the pulmonary artery, to the lungs and returned, oxygenated, to the heart via the pulmonary vein.. Oxygen-deprived blood from the superior and inferior vena cava enters the right atrium of the heart and flows through the tricuspid valve Diminished or absent blood flow leads to bowel wall ischemia and secondary inflammation. Structure. The marginal artery is almost always present, and its absence should be considered a variant. The inferior mesenteric artery is a small, unpaired artery supplying the second half of the large intestine. It arises from the abdominal aorta, and supplies arterial blood to the organs of the midgut which spans from the major duodenal papilla (of the duodenum) to the proximal 2/3 of the transverse colon.. Legs are used for standing, The aorta (/ e r t / ay-OR-t) 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. The SMA supplies However, the definition in human anatomy refers only to the section of the lower limb extending from the knee to the ankle, also known as the crus or, especially in non-technical use, the shank. The superior mesenteric artery supplies the midgut and the inferior mesenteric artery supplies the hindgut. The deep artery of clitoris is a branch of the internal pudendal artery and supplies the clitoral crura.Another branch of the internal pudendal artery is the dorsal artery of clitoris.. Legs are used for standing, The inferior mesenteric vein joins the splenic vein 40% of the time, the superior mesenteric vein 40% of the time, and portomesenteric confluence at 20% of the time 3. Inferior Mesenteric supplies the hindgut Artery Supplies Left colic* Descending colon Sigmoid branches Sigmoid colon S. rectal Rectum *These arteries anastomose to form the Marginal Artery which runs along the inferior surface of the ^Middle & Inferior Rectal arteries branch from internal iliac & internal pudendal arteries respectively Mesenteric arterial anatomy. The splenic artery arises from the coeliac trunk just inferior to the left gastric artery. the celiac artery, superior mesenteric artery, and inferior mesenteric artery. The celiac artery arises anteriorly from the abdominal aorta just below the diaphragm at the T12 level, behind the median arcuate ligament, just as the aorta enters the abdomen in between the right and left crura. The inferior mesenteric artery arises from the abdominal aorta at the level of the third lumbar vertebra. Course. Fetal circulation. The SMA supplies The SMA supplies Course. Mesenteric arterial anatomy. The lesser curvature of the human stomach is supplied by the right gastric artery inferiorly and the left gastric artery superiorly, which also supplies the cardiac region. Uncommonly they may arise from adrenal, lumbar, or internal iliac arteries. Structure. Structure. (Similarly, the superior mesenteric artery and inferior mesenteric artery These structures correspond to the embryonic foregut. The human leg, in the general word sense, is the entire lower limb of the human body, including the foot, thigh or sometimes even the hip or gluteal region. along lymph nodes accompanying the superior mesenteric artery. The celiac artery may also give rise to the inferior phrenic arteries. The inferior mesenteric artery (IMA) is the third major branch from the abdominal aorta. Posterior ends of the inferior meati or from the region of the spheno-ethmoidal recesses above - note exudates. The uterine artery usually arises from the anterior division of the internal iliac artery. The aorta is the largest artery that carries blood from the left ventricle to the body. Inferior turbinates - note size and appearance of posterior ends. Function. It typically arises from a left posterior intercostal artery at the level of the 9th to 12th intercostal artery, which branches from the aorta, and supplies the lower two-thirds of the spinal cord via the anterior spinal artery. [2] The intestine is mainly supplied by 2 major arteries, which include the superior mesenteric artery (SMA) and the inferior mesenteric artery (IMA). It can can also arise as the 2nd or 3rd branch from the inferior gluteal artery. The superior mesenteric artery (SMA) is a major artery of the abdomen. Inferior mesenteric. Inferior turbinates - note size and appearance of posterior ends. Variation. The marginal artery runs in the mesentery close to the large intestine as part of the vascular arcade that connects the superior mesenteric artery and the inferior mesenteric artery. The bony labyrinth receives its blood supply from three arteries, which also supply the surrounding temporal bone: Anterior tympanic branch (from maxillary artery). The unpaired umbilical vein carries oxygen and nutrient rich blood derived from fetal-maternal blood exchange at the chorionic villi.More than two-thirds of fetal hepatic circulation is via the main portal vein, while the remainder is shunted from the left portal vein via the ductus venosus to the inferior vena cava, eventually being delivered to the fetal right atrium. along lymph nodes on the posterior surface of the pancreatic head and nodes accompanying the common hepatic artery It is suggested that the most likely route for para-aortic lymph node metastases is from the left gastric artery nodes accompanying the celiac artery 4. The uterine artery is an artery that supplies blood to the uterus in females. [citation needed]Function. The unpaired umbilical vein carries oxygen and nutrient rich blood derived from fetal-maternal blood exchange at the chorionic villi.More than two-thirds of fetal hepatic circulation is via the main portal vein, while the remainder is shunted from the left portal vein via the ductus venosus to the inferior vena cava, eventually being delivered to the fetal right atrium. In about 60 percent of the population, the right coronary artery supplies the sinoatrial node. The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions, such as the heart rate, digestion, Fetal circulation. The descending and sigmoid colon are supplied by the left colic and sigmoid arteries, which are branches of the inferior mesenteric artery. It originates from the aorta between the celiac artery and renal arteries. In some individuals, the inferior mesenteric vein may enter this intersection instead. The celiac artery may also give rise to the inferior phrenic arteries. The ovarian artery supplies blood to the ovary and uterus. Ischaemic colitis: This is an inflammatory condition of the colon (or large bowel) that results from inadequate blood supply. It typically arises from a left posterior intercostal artery at the level of the 9th to 12th intercostal artery, which branches from the aorta, and supplies the lower two-thirds of the spinal cord via the anterior spinal artery. they arise from the renal arteries (inferior polar). It supplies the hindgut and has four major branches called left colic, sigmoid and superior rectal arteries.It also contributes to the formation of the marginal artery of Drummond.The gastrointestinal tract extends from the mouth to the rectum. The superior mesenteric artery supplies the midgut and the inferior mesenteric artery supplies the hindgut. The superior mesenteric artery (SMA) is a major artery of the abdomen. The circumflex artery supplies the posterior surface of the left ventricle and the left atrium. Inferior turbinates - note size and appearance of posterior ends. A dilated portal vein (diameter of greater than 13 or 15 mm) is a sign of portal hypertension, with a sensitivity estimated at 12.5% or 40%. the celiac artery, superior mesenteric artery, and inferior mesenteric artery. It originates from the aorta between the celiac artery and renal arteries. The uterine artery usually arises from the anterior division of the internal iliac artery. The marginal artery runs in the mesentery close to the large intestine as part of the vascular arcade that connects the superior mesenteric artery and the inferior mesenteric artery. along lymph nodes accompanying the superior mesenteric artery. In human anatomy, the artery of Adamkiewicz (also arteria radicularis magna) is the largest anterior segmental medullary artery. The aorta (/ e r t / ay-OR-t) 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. The pancreas has a rich blood supply, with vessels originating as branches of both the coeliac artery and superior mesenteric artery. Like the superior mesenteric artery, this artery also branches off of the abdominal aorta and supplies blood to the last portion of the large intestine, which includes the rectum. The gastrointestinal tract is supplied by the celiac trunk, the superior mesenteric artery (SMA), and the inferior mesenteric artery (IMA) [].The celiac trunk originates from the anterior aorta just below the diaphragm at the level of the thoracic [1] This is an uncommon medical condition, but it has a high mortality rate. The parasympathetic nerves are autonomic or visceral branches of the peripheral nervous system (PNS). However, the definition in human anatomy refers only to the section of the lower limb extending from the knee to the ankle, also known as the crus or, especially in non-technical use, the shank. The left anterior descending artery supplies the anterior surface of the ventricular septum. The renal arteries send blood to the kidneys. Variation. The superior mesenteric artery travels behind the pancreas. [1] This is an uncommon medical condition, but it has a high mortality rate. The celiac artery supplies oxygenated blood to the liver, stomach, abdominal esophagus, spleen, and the superior half of both the duodenum and the pancreas. Increased blood pressure in the portal vein, called portal hypertension, is a major complication of liver disease, most commonly cirrhosis. 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