Question

a ______ section is accomplished by making a straight cut through something at a right angle to the axis (e.g., the spinal cord).
○ middle
○ lateral
○ dorsal
○ cross

Explanation:

To solve this, we analyze each option:

• "middle" doesn't describe a sectioning plane related to cutting at a right angle to an axis.
• "lateral" refers to the side, not a cross - sectional cut at a right angle to the axis.
• "dorsal" refers to the back - side, not a cross - sectional cut.
• "cross" section (also called transverse section) is defined as a cut made at a right angle to the long axis of a structure (like the spinal cord), which matches the description.

Answer:

D. cross