ANA 407 Lecture Notes - Lecture 10: Superficial Palmar Arch, Carpal Tunnel, Thenar Eminence
26 May 2016
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Describe aspects of the surface anatomy and movements of the hand. a. 2) thenar eminence - contains intrinsic mm. of thumb hypothenar eminence - contains intrinsic mm. of little finger b. (digit v, or digiti minimi) In anatomical position, the thumb is at right angles to the fingers, so it flexes, extends, abducts and adducts at right angles to the similar movements of the fingers. Flexion of the thumb moves it across the palm, whereas thumb abduction moves the thumb away from the plane of the palm. 4th and 5th metacarpals move toward the palm. b) c) d) 2. are more mobile than the 2nd and 3rd metacarpals. Describe the flexor retinaculum and carpal tunnel. a. The two rows of carpals form a transverse arch that is closed anteriorly by a strong fibrous band, the flexor retinaculum, which thus creates the carpal tunnel. Structures passing through of the carpal tunnel include:
