110 Flashcards
What deepens when the metacarpophalangeal joints are flexed?
The transverse palmar creases.
What is the “life line” in palmistry, and what forms it?
The radial longitudinal crease, formed by the short muscles of the thumb.
Where does the proximal (transverse) palmar crease start and extend?
It starts on the lateral border of the palm, extending medially and slightly proximally across the palm.
Where does the distal (transverse) palmar crease begin?
Near the cleft between the index and middle fingers, crossing the palm with a slight convexity.
What spinal nerves provide sensory fibers to the hand, and which dermatomes do they correspond to?
Spinal nerves C6-C8 provide sensory fibers to the hand, which correspond to the C6-C8 dermatomes