Match the letter of the digestive organ shown in the figure with its function.
___ produces both endocrine and exocrine secretions

Verified step by step guidance

Step 1: Identify the organ that produces both endocrine and exocrine secretions. In the digestive system, this organ is the pancreas.

Step 2: Locate the pancreas in the image. It is labeled as 'd' and is situated behind the stomach (labeled 'c').

Step 3: Understand the functions of the pancreas: it produces digestive enzymes (exocrine function) that are secreted into the small intestine, and it also produces hormones like insulin and glucagon (endocrine function) that regulate blood sugar levels.

Step 4: Confirm that the label 'd' corresponds to the pancreas, which matches the description of producing both endocrine and exocrine secretions.

Step 5: Conclude that the correct answer to the question is the organ labeled 'd' in the figure.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Endocrine and Exocrine Functions of the Pancreas

The pancreas is unique in the digestive system because it has both endocrine and exocrine functions. Endocrine secretion involves releasing hormones like insulin and glucagon into the bloodstream to regulate blood sugar. Exocrine secretion involves producing digestive enzymes that are released into the small intestine to aid in digestion.

Anatomy of the Digestive Organs

Understanding the location and structure of digestive organs is essential. The pancreas (labeled d in the image) is situated behind the stomach and connected to the small intestine. Recognizing these anatomical relationships helps identify the organ responsible for specific functions like hormone and enzyme production.

Functions of Digestive Organs

Each digestive organ has specialized roles: the liver (e) produces bile, the stomach (c) breaks down food mechanically and chemically, and the pancreas (d) produces both digestive enzymes and hormones. Knowing these functions allows for matching organs to their physiological roles accurately.

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Organs of the Digestive System

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Textbook Question

More than one choice may apply. Which of the following hormones is (are) secreted by neurons?

a. Oxytocin

b. Insulin

c. ADH

d. Cortisol

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