1. Flexor carpi ulnaris
a. The flexor carpi ulnaris originates on the humeral medial epicondyle/ the ulnar olecranon process, and inserts onto the pisiform, hamate, and 5th metacarpal (Starkey, Brown, Ryan, 2011).
a. Its main functions are wrist flexion and ulnar deviation (Starkey, et al., 2011).
2. Flexor digitorum profundus
a. The flexor digitorum profundus originates on the proximal portion of the ulna near the interosseous membrane, and inserts onto the base of the phalanges (II-V) (Starkey, et al., 2011).
b. Its main functions are DIP, PIP, and wrist flexion (Starkey, et al., 2011).
3. Flexor digitorum superficialis
a. The flexor digitorum superficialis originates on the humeral medial epicondyle, coronoid process of the ulna, and the radial head. It inserts onto …show more content…
Flexor pollicis brevis
i. The flexor pollicis brevis originates on the trapezoid/capitates, and inserts onto the lateral surface of the proximal phalanx of the thumb (Starkey, et al., 2011). ii. Its main functions are flexion of the 1st CMC and MCP (Starkey, et al., 2011).
18. Thenar webspace (The section between the thumb and II MCP)
a. Adductor pollicis
i. The adductor pollicis originates on the capitate/ the base of the II & III base of the metacarpal, and inserts onto medial surface of the proximal phalanx of the thumb (Starkey, et al., 2011). ii. Its main functions are adduction of the 1st CMC and MCP (Starkey, et al., 2011).
19. Central compartment (The section between the II & III MCP)
a. The flexor tendons leave the carpal tunnel and enter a central compartment in the palm. This compartment contains the flexor tendons and their synovial sheaths, the lumbrical muscles, and the digital nerves and vessels (AnatomyExpert, 2014).
20. Hypothenar compartment/eminence (The section on the outside of the 5th MCP)
a. This compartment contains the muscles of the hypothenar eminence which include the abductor digiti minimi, flexor digiti minimi, and the opponens digiti minimi (AnatomyExpert,
a. The flexor carpi ulnaris originates on the humeral medial epicondyle/ the ulnar olecranon process, and inserts onto the pisiform, hamate, and 5th metacarpal (Starkey, Brown, Ryan, 2011).
a. Its main functions are wrist flexion and ulnar deviation (Starkey, et al., 2011).
2. Flexor digitorum profundus
a. The flexor digitorum profundus originates on the proximal portion of the ulna near the interosseous membrane, and inserts onto the base of the phalanges (II-V) (Starkey, et al., 2011).
b. Its main functions are DIP, PIP, and wrist flexion (Starkey, et al., 2011).
3. Flexor digitorum superficialis
a. The flexor digitorum superficialis originates on the humeral medial epicondyle, coronoid process of the ulna, and the radial head. It inserts onto …show more content…
Flexor pollicis brevis
i. The flexor pollicis brevis originates on the trapezoid/capitates, and inserts onto the lateral surface of the proximal phalanx of the thumb (Starkey, et al., 2011). ii. Its main functions are flexion of the 1st CMC and MCP (Starkey, et al., 2011).
18. Thenar webspace (The section between the thumb and II MCP)
a. Adductor pollicis
i. The adductor pollicis originates on the capitate/ the base of the II & III base of the metacarpal, and inserts onto medial surface of the proximal phalanx of the thumb (Starkey, et al., 2011). ii. Its main functions are adduction of the 1st CMC and MCP (Starkey, et al., 2011).
19. Central compartment (The section between the II & III MCP)
a. The flexor tendons leave the carpal tunnel and enter a central compartment in the palm. This compartment contains the flexor tendons and their synovial sheaths, the lumbrical muscles, and the digital nerves and vessels (AnatomyExpert, 2014).
20. Hypothenar compartment/eminence (The section on the outside of the 5th MCP)
a. This compartment contains the muscles of the hypothenar eminence which include the abductor digiti minimi, flexor digiti minimi, and the opponens digiti minimi (AnatomyExpert,