The brachial plexus at the interscalene level is seen lateral to the carotid artery, between the anterior and middle scalene muscles (Figures 2, 3, and 4). Prevertebral fascia, superficial cervical plexus and sternocleidomastoid muscle are seen superficial to the plexus.he goal of the continuous interscalene block is similar to the non-ultrasound-based techniques: to place the catheter in the vicinity of the trunks of the brachial plexus between the scalene muscles.
A colonoscopy is similar to a sigmoidoscopy, but a longer flexible viewing tube called a colonoscope is used to examine the entire colon and (if necessary) the lower portion of the small intestine. It is typically performed to detect colorectal cancer and to determine the causes of rectal bleeding, chronic diarrhea, chronic constipation, or abdominal pain.
What is a colonoscopy? Colonoscopy is a procedure, which enables the direct visualization of the lining of your colon (large intestine). A flexible tube, as thick as your finger, is inserted into the anus and slowly advanced from the rectum to the cecum (the anatomic beginning of the colon).Lesions such as polyps, colon cancer and inflammation can be found during a colonoscopy. flexible tube, as thick as your finger, is inserted into the anus and slowly advanced from the rectum to the cecum (the anatomic beginning of the colon). Lesions such as polyps, colon cancer and inflammation can be found during a colonoscopy.