The structure at the arrow is Howship's lacunae.

The structure at the arrow is Howship's lacunae.

• A. Not Applicable
• B. False
• C. True
• D. Not Sure

Answer: (C)

Howship's lacunae are resorption bays on the bone surface created when osteoclasts attach and dissolve the mineralized matrix during remodeling. If the arrow points to a pit on the bone surface that is closely associated with an osteoclast, that’s exactly what Howship's lacunae look like under the microscope. This makes the statement true, since the feature shown is a bone resorption pit rather than a structure from cartilage or a non-resorbing area.

Howship's lacunae are resorption bays on the bone surface created when osteoclasts attach and dissolve the mineralized matrix during remodeling. If the arrow points to a pit on the bone surface that is closely associated with an osteoclast, that’s exactly what Howship's lacunae look like under the microscope. This makes the statement true, since the feature shown is a bone resorption pit rather than a structure from cartilage or a non-resorbing area.