Ask Question
BiologyBiology
25 February, 23:27

A 70-year-old man has a 90% blockage at the origin of the

inferior mesenteric artery. He does not have intestinal angina.

Which of the following arteries is the most likely additional

source of blood to the descending colon?

(A) Left gastroepiploic

(B) Middle colic

(C) Sigmoid

(D) Splenic

(E) Superior rectal

+4
Answers (2)
  1. 25 February, 23:44
    0
    The middle colic artery can supply the descending colon in case the inferior mesenteric artery is blocked.

    Explanation:

    In the intestines, the inferior mesentery artery supplies one-third portion of the transverse, descending and sigmoid colon on the left side.

    The superior mesentery artery is divided into many branches like the middle colic artery. The middle colic artery after supplying the transverse colon divides into the left and right branches.

    The left branch of the middle colic artery anastomoses (of the SMA) with the left colic artery (of the IMA) and supplies the descending colon. Hence, in case the origin of the IMA is blocked, the middle colic artery of the SMA can still supply to the descending colon.

    Moreover, the patient does not have intestinal angina which usually occurs when the SMA is blocked. Since the SMA is not blocked, its branch middle colic artery can supply the descending colon.

    The left gastroepiploic and splenic artery supplies the spleen, superior rectal artery supplies the rectal region.
  2. 26 February, 01:46
    0
    Option B

    Middle colic arteries is the most likely additional source of blood to the descending colon

    Explanation:

    The middle colic artery is a section of the superior mesenteric artery. Middle Colic provides the transverse colon, has a branch that runs to the right colon and branch that persists to the left colon that catches up with the left colic artery and proceeds as the marginal artery to provide the descending colon.

    The left gastroepiploic artery is one of the sections of the splenic artery. Sigmoid - branch off IMA so barred in this case Splenic - proceeds of the celiac trunk, branches accumulation spleen & pancreas Superior Rectal - a sequence of IMA not possible to participate in this case
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A 70-year-old man has a 90% blockage at the origin of the inferior mesenteric artery. He does not have intestinal angina. Which of the ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
What role is played by cholesterol in the plasma membranes of some animals
Answers (1)
After a visit to mt. washington, n. h., some wassail is in order. what is the tradition of the wassail?
Answers (1)
What are the two primary sources of energy for the earth
Answers (2)
Forensic investigators uncover evidence of what
Answers (1)
Which statement best describes the event shown in the diagram? tyrosine + valine + proline - > tyrosine - valine - proline a) Glucose is being sunthrsuized in the chlorplast using nitrogen from plants.
Answers (1)
New Questions in Biology
Which route represents the path taken by the European explorer Christopher Columbus? A) 1 B) 2 C) 3 D) 4
Answers (1)
Which gas is the most abundant of the trace gases? A. nitrogen B. oxygen C. argon D. carbon dioxide
Answers (2)
Describe the central dogma of molecular biology, briefly describe the processes of transcription and translation.
Answers (1)
magine that the animal body produced sperm and eggs with mitosis instead of meiosis. What chromosome number would the autosomes of the third generation have if the first generation had four chromosomes
Answers (1)
A well supported testable explanation of phenomena that have occurred in the natural world is called
Answers (1)
Home » Biology » A 70-year-old man has a 90% blockage at the origin of the inferior mesenteric artery. He does not have intestinal angina.
Sign Up Forgot Password?