Question

The two bones of the forearm run __________ (Parallel, Superficially, Cranially)

to each other.


When extended, the thumbs are _______ (Perpendicular, Superficial, Distill)

to each other.

Answer 1

The answer to both fill-in-the-blank statements is:

• The two bones of the forearm run PARALLEL to each other.
• When extended, the thumbs are PERPENDICULAR to each other.

Step-by-step explanation:

The reason is:

The two bones of the forearm - the radius and ulna - lie next to each other along the length of the forearm. They run parallel and generally do not overlap with each other.

When the thumbs are extended from a relaxed position, they form a right angle with each other, rather than lying in the same plane or direction. They become perpendicular.

So the filled-in statements would be:

The two bones of the forearm run PARALLEL to each other.

When extended, the thumbs are PERPENDICULAR to each other.

Hope this explanation helps clarify! Let me know if you have any other questions.