Question

The pleural cavity is a part of which cavity?

a. dorsal cavity

b. thoracic cavity

c. abdominal cavity

d. pericardial cavity

Short answer

The correct answer is (b) thoracic cavity

The pleural cavity is a part of thoracic cavity which part from the ventral cavity.

Step-by-step solution

Step1. Introduction

Vertebrate animals have a number of defined body cavities, The dorsal cavity contains the cranial and the vertebral (or spinal) cavities. The ventral cavity contains the thoracic cavity, which in turn contains the pleural cavity around the lungs and the pericardial cavity, which surrounds the heart.

Explanation for correct answer

The pleural cavity is a part of thoracic cavity which part from the ventral cavity. The ventral cavity contains the thoracic cavity, which in turn contains the pleural cavity around the lungs and the pericardial cavity, which surrounds the heart.

Explanation For Incorrect options

Options (a) dorsal cavity

The dorsal cavity contains the cranial and the vertebral (or spinal) cavities.

Options (c) abdominal cavity

The ventral cavity also contains the abdominopelvic cavity, which can be separated into the abdominal and the pelvic cavities.

Options (d) pericardial cavity

Pericardial cavity, the cavity in vertebrates that contains the heart and is bounded by a membrane (the pericardium). It is part of the coelom.