D

A

C

B

A

C

B

Appendectomy

To insert a pacemaker.

To remove a cancerous lung mass.

D

A

C

E

B

H

C

B

Surgery to remove a brain tumor.

Surgery to remove a ruptured vertebral disc.

Removal of the gall bladder.

Hysterectomy to remove the uterus.

Surgery to remove a cancerous lung lobe.

G

D

C

Dorsal cavity that contains the spinal cord. 

Dorsal cavity that contains the brain. 

Ventral cavity that is superior to the pelvic cavity but inferior to the thoracic cavity. 

Cavity within the mediastinal cavity that contains the heart. 

Cavity within the thoracic cavity that contains the lungs.

Cavity within the thoracic cavity that is between the two pleural cavities.