a. spinal tap dorsal cavity, vertebral cavity
b. removal of appendix _________________________________________________
c. removal of gallbladder ________________________________________________
d. coronary bypass surgery ________________________________________________
The Correct Answer and Explanation is:
:
a. Spinal tap → Dorsal cavity, Vertebral cavity
b. Removal of appendix → Abdominopelvic cavity, Pelvic cavity
c. Removal of gallbladder → Abdominopelvic cavity, Abdominal cavity
d. Coronary bypass surgery → Thoracic cavity, Pericardial cavity
Explanation
The human body is organized into several cavities that house and protect internal organs. These cavities are divided into dorsal and ventral body cavities.
a. Spinal tap is a procedure used to collect cerebrospinal fluid from the spinal canal for diagnostic purposes. This procedure is performed within the vertebral cavity, which is a part of the dorsal cavity. The vertebral cavity encases the spinal cord and is protected by the vertebrae.
b. Removal of the appendix, known as an appendectomy, occurs in the abdominopelvic cavity, specifically in the pelvic cavity, where the appendix is located at the lower right quadrant of the abdomen. The appendix is attached to the cecum, the first part of the large intestine.
c. Removal of the gallbladder, or cholecystectomy, takes place in the abdominal cavity, a subregion of the abdominopelvic cavity. The gallbladder is situated beneath the liver, primarily in the upper right portion of the abdomen.
d. Coronary bypass surgery, which is performed to improve blood flow to the heart, involves operating on the heart within the thoracic cavity, more precisely the pericardial cavity. The pericardial cavity is a fluid-filled space that surrounds the heart and is within the mediastinum of the thoracic cavity.
Understanding which cavity is involved in different medical procedures is crucial in anatomy and clinical practice. It helps medical professionals localize organs, understand disease processes, and plan surgeries. Each cavity serves to protect organs from mechanical damage and allows movement and expansion (e.g., lungs inflating or the heart beating). Recognizing these compartments enhances diagnostic accuracy and improves patient care.
