Questions: The foramen magnum is found in the bone.
(A) frontal.
(B) parietal
(C) sphenoid
(D) occipital
(E) temporal
Transcript text: The foramen magnum is found in the $\qquad$ bone.
(A) frontal.
(B) parietal
(C) sphenoid
(D) occipital
(E) temporal
Solution
The answer is (D): occipital.
Explanation for each option:
(A) Frontal: The frontal bone is located at the front of the skull and forms the forehead. It does not contain the foramen magnum.
(B) Parietal: The parietal bones are located on the sides and roof of the skull. They do not contain the foramen magnum.
(C) Sphenoid: The sphenoid bone is a complex bone located at the base of the skull, but it does not contain the foramen magnum.
(D) Occipital: The occipital bone is located at the back and base of the skull. It contains the foramen magnum, which is a large opening that allows the passage of the spinal cord from the brain.
(E) Temporal: The temporal bones are located on the sides of the skull, near the ears. They do not contain the foramen magnum.
Summary: The foramen magnum is found in the occipital bone.