What does the superior mesenteric plexus innervate?
sympathetic nervous system
…of the small intestine; the superior mesenteric ganglion innervates the small intestine; and the inferior mesenteric ganglion innervates the descending colon, sigmoid colon, rectum, urinary bladder, and sexual organs.
What does the SMA innervate?
The SMA typically runs to the left of the similarly named vein, the superior mesenteric vein.
…
SMA branches.
| Branch | Supplies |
|---|---|
| ileocolic artery | supplies last part of ileum, cecum, and appendix (distal loop) |
| right colic artery | to ascending colon (distal loop) |
| middle colic artery | to the transverse colon (distal loop) |
Which of the nerve plexuses serves the shoulder and arm?
Brachial plexus
Brachial plexus: The brachial plexus originates from cervical levels five through eight and thoracic level one. This plexus of nerves innervates your chest, shoulder, and arms.
What is supplied by the SMA?
The superior mesenteric artery provides blood to the pancreas and parts of the small intestine and large intestine. As a peripheral artery in the body’s circulatory system, it has several branches that send blood to various parts of the GI tract.
What is superior mesenteric plexus?
The superior mesenteric plexus is a continuation of the lower part of the celiac plexus, receiving a branch from the junction of the right vagus nerve with the plexus. Superior mesenteric plexus. The celiac ganglia with the sympathetic plexuses of the abdominal viscera radiating from the ganglia.
What does the inferior mesenteric plexus innervate?
The inferior mesenteric plexus belongs to the aortic plexus, which is located in front of the abdominal aorta and is responsible for the sympathetic innervation of mesenteric, pelvic, and urogenital organs. It is supplied directly by the left L2 lumbar splanchnic nerve.
What does the superior mesenteric vein supply?
The main function of the superior mesenteric vein is to drain the blood from the distal portion of the gastrointestinal tract. Specifically, it drains the small intestine, caecum, ascending and transverse parts of the colon, and distal parts of the stomach and greater omentum.
How do I remember SMA branches?
Superior Mesenteric Artery Anatomy Mnemonic – YouTube
What plexus is responsible for the arm?
The brachial plexus
The brachial plexus is a major network of nerves transmitting signals responsible for motor and sensory innervation of the upper extremities, including the shoulder, arm, and hand.
What nerve Innervates the arm?
The axillary nerve innervates the deltoid and teres minor. The musculocutaneous nerve is responsible for innervating the flexors of the arm, including the biceps brachii, coracobrachialis, and the medial aspect of the brachialis.
What is nutcracker syndrome?
Nutcracker syndrome is a rare vein compression disorder. It occurs when arteries, most often the abdomen’s aorta and superior mesenteric artery, squeeze the left renal (kidney) vein. It can cause many symptoms in both children and adults, such as flank pain and blood in the urine.
Where is the superior mesenteric plexus located?
The celiac and superior mesenteric plexuses lie on the front and sides of the aorta at the origins of the celiac trunk and the superior mesenteric and renal arteries. They contain the celiac, aorticorenal, and superior mesenteric ganglia and many smaller unnamed masses.
Where does the superior mesenteric vein supply blood to?
the liver
The superior mesenteric artery, which carries blood into the digestive system, is on the left side of the abdomen. The SMV joins with the splenic vein and becomes the hepatic portal vein. It is the hepatic portal vein that carries the blood to the liver.
Where does SMV drain?
The first jejunal branch of the superior mesenteric vein, which drains the duodenojejunal flexure and first jejunal loop, has been observed to drain into either the main trunk of the superior mesenteric vein or into the left intestinal branch.
What are the 3 mesenteric arteries?
The three major mesenteric arteries that perfuse the small and the large intestines are: (1) the celiac trunk, which supplies the hepatobiliary system, spleen, and proximal small bowel; (2) the SMA, which supplies the small intestine and proximal middle colon; and (3) the inferior mesenteric artery (IMA), which …
At which level does the SMA typically originate?
The SMA arises from the anterior surface of the aorta at the level of the first lumbar vertebral body and passes posterior to the neck of the pancreas and SV and follows a course medial and anterior to the uncinate process of the pancreas and the third part of the duodenum.
What are the 5 major nerve Innervations of shoulder arm?
The fifth and final level of the brachial plexus are the five nerves that feed the shoulder and arm called “branches.” These five branches are named the musculocutaneous, axillary, radial, median, and ulnar nerves.
What nerves control arms and hands?
The radial nerve is one of five terminal nerve branches that make up the brachial plexus. The brachial plexus is a complex bundle of nerves that control movements and sensations in your shoulders, arms, hands and fingers.
What are the 3 nerves in the arm?
Three main nerves run past the elbow and wrist to the hand.
Nerves of the Arm
- Median nerve. This nerve passes down the inside of the arm and crosses the front of the elbow.
- Ulnar nerve. This nerve passes down the inside of the arm.
- Radial nerve. This nerve passes down the back and outside of the upper arm.
What is Wilkie’s syndrome?
Superior mesenteric artery (SMA) syndrome or Wilkie’s syndrome is a rare but potentially life threatening gastrointestinal condition. This syndrome is a clinical phenomenon believed to be caused by compression of the third part of the duodenum between the SMA and the aorta, leading to obstruction.
What is renal entrapment syndrome?
It occurs when arteries, most often the abdomen’s aorta and superior mesenteric artery, squeeze the left renal (kidney) vein. It can cause many symptoms in both children and adults, such as flank pain and blood in the urine.
What does the superior mesenteric artery supply?
The superior mesenteric artery supplies the midgut from the ampullary region of the second part of the duodenum to the splenic flexure of the large intestine. The inferior pancreaticoduodenal artery arises from the SMA and, along with the superior pancreaticoduodenal artery, supplies the head of the pancreas.
What does the superior mesenteric drain?
What does the SMV feed?
The superior mesenteric vein (SMV) is a large blood vessel in the abdomen. Its function is to drain blood from the small intestine as well as the first sections of the large intestine and other digestive organs. This large vein receives blood from several other veins (tributaries) in the digestive tract.
What happens if superior mesenteric artery is blocked?
In mesenteric ischemia, a blockage in an artery cuts off blood flow to a portion of the intestine. Mesenteric ischemia (mez-un-TER-ik is-KEE-me-uh) occurs when narrowed or blocked arteries restrict blood flow to your small intestine. Decreased blood flow can permanently damage the small intestine.