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30 Cards in this Set
- Front
- Back
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What is the name of the two muscle masses that the palm of the hand divides in to?
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1. Hypothenar eminence: at the base of the little finger side
2. Thenar eminence: at the base of the thumb |
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What is the Central Palm Covered by?
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The palmar aponeurosis
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The Palmar Aponeurosis also serves as an insertion for ?
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Palmaris Longus (when present)
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The Thenar Eminence is made up of what 4 muscles?
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1. Abductor Pollicis Brevis
2. Felxor Pollicis Brevis 3. Adductor Pollicis 4. Opponens Pollicis |
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The Ulnar Nerves supplies what muscles of the Thenar eminence?
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1. Flexor pollicis Brevis (deep)
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The median nerve supplies what 2 muscles of the Thenar Eminence?
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1. Adductor Pollicis
2. Opponens Pollicis |
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Name the muscles of the Hypothenar Eminence (little finger)
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1. Abductor digit minimi
2. Flexor digiti minimi brevis 3. Opponens digiti minimi |
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What is the deepest muscle of the Thenar Eminence?
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Adductor Pollicis (Transverse head)
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What muscle covers the Opponens Pollicis?
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Abductor Pollicis Brevis
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Which two lumbrical muscles are innervated by the Median N.?
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The lateral two ( 1 & 2)
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Which two Lumbrical muscles are innervated by the Ulnar N.?
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The medial two ( 3 & 4)
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What muscles produce flexion of the MP joints?
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Lumbricals & Interossei
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What muscles produce Extension of the DIP and PIP joints
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Lumbricals and interossei
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What muscle produces Extension of the MP joints
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Extensor Digitorum
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What muscle produces Flexion of the DIP joint
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Flexor Digitorum Profundus
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What muscle produces Flexion at the PIP joint
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Flexor Digitorum Superficialis
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The superficial Palmar arch is made up of?
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The Radial and Ulnar Artery
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What is Ulnar Tunnel/ Guyon's Canal/ Guyon's Syndrome?
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Compression of the Ulnar Nerve in Guyon's canal at the base of the palm
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Which two bones are often responsible for compressing the nerve and causing Ulnar Tunne?
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The hamate and pisiform
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What is Hypothenar Hammer Syndrome?
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Occlusion of the palmar arch vessel
-Occurs in athletes and workers whos hands are exposed to repated blunt trauma or gripping activites |
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What is the Allen's test?
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A test used to test how well your Ulnar or Radial nerve supply blood to the hand if the other is blocked off.
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What is Raynaud's Disease?
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A vascular problem
-Spasmodic vasoconstriction at that wrist will cause one or more fingers to become cyanotic/ ischemic |
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Tenosynovitis: Definition
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Irriation and swelling causing inflammation of a tnedon and its enveloping sheath
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What is de Quervain's disease?
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a tenosynovitis of the Ext. compartment (tunnel that transmits the EPL & EPB) due to repetitive wrist deviation or use of the thumb
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Mallet Finger
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Tip of the finger is forcefully bent which tears the ext. Tendon from insertion at the distal phalanx
-Unable to ext. distal end of finger |
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Boutinniere Deformity
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Rupture of Ext. Tendon dorsal to middle phalanx
-Inability to ext PIP joint |
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Swan Neck deformi
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-Distal tear of palmar plate due to finger trauma
-PIP is hyper-extened and DIP is flexed reverse of boutonniere |
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Texting thumb is a tenosynovitis of what tendons
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APL, EPB, EPL
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De Quervains disease is a tenosynovitis of what tendons
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EPL and EPB
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What test is used to test de Quervains
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Finkelstein- make a fist and adduct the wirst
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