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5 lip 2023 · The superficial branch of the ulnar nerve supplies sensory innervation to the anterior aspect of the ulnar 1½ digits (little finger and half of the ring finger) and medial palmar skin. Additionally, it provides motor innervation to the palmaris brevis muscle in the hypothenar region of the hand.
- Hypothenar Muscles
Hypothenar muscles The hypothenar muscles are the three...
- Opponens Digiti MINIMI
Opponens digiti minimi (Musculus opponens digiti minimi)...
- Flexor Pollicis Brevis
Innervation. The two heads of the flexor pollicis brevis...
- Palmaris Brevis Muscle
Palmaris brevis forms the roof of Guyon’s canal, the...
- Brachial Plexus
The brachial plexus is a network of nerves that gives rise...
- Flexor Carpi Ulnaris Muscle
Distally, the ulnar artery and ulnar nerve lie lateral to...
- Wrist
Radiocarpal joint (Articulatio radiocarpalis) The...
- Axillary Artery
Axillary artery (Arteria axillaris) The axillary artery is a...
- Hypothenar Muscles
18 wrz 2024 · The radial, median, and ulnar nerves provide cutaneous innervation to different areas of the hand. The radial nerve supplies the posterior hand, while the median nerve innervates the anterior hand and lateral digits. In contrast, the ulnar nerve innervates the medial hand and pinky finger.
Learn about the innervation by the median and ulnar nerves and the cadaver demonstration of muscle actions. Test your knowledge of hand anatomy with our interactive quiz and flashcards, covering muscles of the hand and nerves.
Explore the functions and origins of specific hand muscles, as well as their innervation by the median and ulnar nerves. Gain insights into the unique actions and features of the thenar, hypothenar, lumbricals, adductor pollicis, and interosseous muscles.
Practice Quiz - Hand. Below are written questions from previous quizzes and exams. Click here for a Practical Quiz - old format or Practical Quiz - new format. The extensor expansion of the ring finger receives tendons from all of the following EXCEPT: Dorsal interosseus. Extensor carpi ulnaris. Extensor digitorum. Lumbrical. Palmar interosseus.
4 paź 2024 · Dorsal cutaneous branch – innervates the dorsal surface of the medial one and a half fingers, and the associated dorsal hand area. At the wrist, the ulnar nerve travels superficially to the flexor retinaculum, and is medial to the ulnar artery. It enters the hand via the ulnar canal (Guyon’s canal).
Test your knowledge on the anatomy of the intrinsic muscles of the hand, including their attachments, actions, and innervation. Learn about the thenar muscles located at the base of the thumb and their role in fine movements, as well as the opponens pollicis muscle.
