- Bones
-
Also available as a Poster size image. See printing instructions and image restrictions.
-
Also available as a Poster size image. See printing instructions and image restrictions.
-
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
-
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
-
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
-
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
- Muscles and Tendons
- Palm
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
- Dorsum
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
- Intrinsic (Originate in hand)
- General
- Delicate finger movements
- Thenar and Hypothenar Muscles
- Position thumb and small finger for pinching
- Interossei and Lumbricals
- Insert into proximal phalanges and extensor hoods
- Metacarpal phalangeal joint flexion
- Interphalangeal joint extension
- General
- Extrinsic (Originate in Forearm)
- Wrist flexors and extensors
- Stabilize wrist in slight dorsiflexion
- Finger Flexors
- Deep Flexors (5)
- Flex distal phalanges of fingers and thumb
- Superficial Flexors (4)
- Flex middle phalanges of fingers
- Course
- Under Annular ligaments (Pulleys)
- Between distal palmar crease and IP joint
- Conditions
- Deep Flexors (5)
- Finger Extensors
- Course dorsally over fingers and thumb
- Extend proximal phalanges
- Conditions
- Wrist flexors and extensors
- Blood Supply
- Neurovascular bundles
- Contain digital artery, vein, and nerve
- Two bundles: one radial and the other ulnar
- Radial and Ulnar arteries join in 2 arches
- Superficial Palmar Arch: superficial to flexor tendon
- Located at base of first web space
- Deep Palmar Arch (deep to flexor tendons)
- Proximal to superficial arch by 1 cm
- Superficial Palmar Arch: superficial to flexor tendon
- Nerve
- Ulnar Nerve
- Median Nerve
- Motor
- Allows for fine control of pincer grasp
- Innervates thenar Muscles and two radial lumbricals
- Sensation
- Course
- Passes via Carpal Tunnel through volar wrist
- Test function
- Opposition of thumb to each finger
- Observe thenar Muscles for contractions
- Conditions
- Motor
- Radial Nerve
- Motor
- Innervates extrinsic wrist and finger extensors
- Does not innervate any intrinsic Muscles
- Sensation
- Test function
- Wrist and hand extension against resistance
- Conditions
- Radial Tunnel (elbow)
- Handcuff Neuropathy (wrist)
- Motor