Abduction
Thumb abduction and adduction is in the sagittal plane. However, finger abduction and adduction is in the frontal/coronal plane. Do these movements in the anatomical position and that will help you see that the thumb is not abducting or adducting in the frontal plane rather the sagittal plane.
Sagittal
Sagittal plane
This plane is called as 'Median plane'. Also it is called as Sag-ital plane. (Sagita means arrow. It penetrates like arrow.)
There is only one median plane, which divides the left and right sides of the body into two equal halves. The sagittal plane is any vertical plane that is parallel to the median plane, so it can divide the left and right sides but they will be unequalparts.
Frontal Plane about the anterioposterior axis
Thumb abduction and adduction is in the sagittal plane. However, finger abduction and adduction is in the frontal/coronal plane. Do these movements in the anatomical position and that will help you see that the thumb is not abducting or adducting in the frontal plane rather the sagittal plane.
Though flexion and extension can occur in a variety of planes depending on the body's position, if you have a body in anatomical position, then all flexion and extension occurs on the sagittal plane.
does hyperextension occurs in the sagittal plane?
Sagittal. Midsaggittal plane divides the body into equal halves
A sagittal plane is a plane that passes from posterior to anterior. It divides the body into left and right halves.
It is in the Sagittal plane.
sagittal plane
It is any plane parallel to the sagittal plane.
frontal plane
"The dorsal structure was visible through the sagittal plane"
Sagittal