Multiple Choice
Which anatomical term refers to the bony ridge located above the eye sockets on the frontal bone of the skull?
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1. Introduction to Anatomy & Physiology
Anatomical Terms for the Head and Neck
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Ridges of tissue on the surface of the cerebral hemispheres are called ________.
A
gyri
B
sulci
C
fissures
D
lobes
Verified step by step guidance1
Step 1: Begin by understanding the anatomy of the cerebral hemispheres. The surface of the brain is not smooth; it has ridges and grooves that increase its surface area for neural connections.
Step 2: Learn the terminology associated with these structures. The ridges are called 'gyri' (singular: gyrus), while the grooves are called 'sulci' (singular: sulcus). Larger grooves are referred to as 'fissures.'
Step 3: Analyze the question. It specifically asks for the name of the ridges of tissue on the surface of the cerebral hemispheres. This eliminates 'sulci' and 'fissures,' as they refer to grooves, not ridges.
Step 4: Consider the term 'lobes.' Lobes refer to larger divisions of the brain, such as the frontal, parietal, temporal, and occipital lobes, and are not related to the ridges of tissue.
Step 5: Conclude that the correct term for the ridges of tissue on the surface of the cerebral hemispheres is 'gyri.'
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