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MDCAT
Biology
2021

Biology · Gaseous Exchange

Work through this past-paper style MCQ, then read the full explanation. Practice more biology questions on mMCQ with adaptive practice and topic analytics.

Question

What does the plueral membrane cover?

Options
  • A

    Heart

  • B

    Lungs

  • C

    Brain

  • D

    Kidney

Explanation

The pleural membranes cover the lungs and have a pleural fluid in between them to lubricate the lungs and prevent damage due to friction.

The pericardium is a double-layered membrane that surrounds and protects the heart. It provides a lubricated environment, reducing friction as the heart beats and helping anchor it within the chest cavity.

The pleural membrane is a double-layered tissue that surrounds the lungs. It reduces friction during breathing and helps maintain the lungs’ position within the chest cavity.

The brain is protected by three layers of meninges: the dura mater, arachnoid mater, and pia mater. These layers provide cushioning, support, and help contain cerebrospinal fluid to protect the brain from injury.

The renal capsule is a thin, tough membrane that surrounds the outer surface of each kidney. It provides protection against injury and helps maintain the kidney’s shape.

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Tagged under Biology · Gaseous Exchange · 2021