Multiple Choice
In the context of the birth process, what does 'occiput posterior' refer to?
1. Introduction to Anatomy & Physiology
Introduction to Directional Terms
Multiple Choice
Which term refers to the shallow grooves found on each of the cerebral hemispheres?
A
Sulci
B
Gyri
C
Fissures
D
Lobes
Verified step by step guidance1
Understand the anatomy of the cerebral hemispheres: The surface of the brain is characterized by folds and grooves that increase its surface area, allowing for more neurons and greater processing power.
Learn the terminology: The folds of the brain are called 'gyri' (singular: gyrus), while the grooves are referred to as 'sulci' (singular: sulcus). Deeper grooves are called 'fissures.'
Differentiate between the terms: Sulci are shallow grooves, gyri are raised ridges, fissures are deep grooves, and lobes are larger regions of the brain divided by fissures.
Apply the definition: Since the question asks for the term referring to shallow grooves, the correct term is 'sulci.'
Review the options provided: Confirm that 'sulci' matches the description of shallow grooves, while 'gyri,' 'fissures,' and 'lobes' refer to other structures of the brain.
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