The 4 Types of Secretory Cells in the Pancreatic Islets

question 9

Multiple Choice

The 4 types of secretory cells in the pancreatic islets are not present in the equal percentages.  Which of the following represents the correct approximate percentages for the 4 types of islet cells?

• A)80% beta cells, 15% alpha cells, 5% delta cells, <1% F cells
• B)80% delta cells, 15% alpha cells, 5% F cells, <1% beta cells
• C)80% delta cells, 15% F cells, 5% beta cells, <1% alpha cells
• D)80% alpha cells, 15% beta cells, 5% delta cells, <1% F cells
• E)80% F cells, 15% delta cells, 5% beta cells, <1% alpha cells

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Definitions:

Detonation

An uncontrolled, explosive ignition of fuel in an engine's cylinder, causing damage and reducing efficiency.

EGR System

An Exhaust Gas Recirculation System helps reduce nitrogen oxide emissions by recirculating a portion of an engine's exhaust gas back to the engine cylinders.

Air/Fuel Ratio

The ratio of air to fuel in an internal combustion engine, crucial for efficient performance and emissions control.

Scan Tool

A diagnostic tool used to interface with, diagnose, and sometimes reprogram vehicle control modules.