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21 Cards in this Set
- Front
- Back
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How many carpal bones?
metal carpal? phalanges? |
8
5 14 |
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What are the Carpal metacarpal joints?
Where are they? |
Saddle joint: Trapezium and metacarpal 1
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Palmer ligament
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Thickened anterior portion of joint capsules of metacarpal phalanx and interphalanx joints
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Deep Transverse ligaments
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Interconnect the Metacarpal phalanx joint...except thumb.
Allows for greater mobility of thumb |
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Collateral ligaments
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CT bands on each side of joint
Support all MCP &IP joints |
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Collateral ligamnets on MCP joints: effect on movement?
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Flexion tautens collateral ligaments; limits add/abduction
Extension relaxes ligaments; permits ab/addduction |
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Palmar aponeurosis
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protective covering over tendons
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Superficial transverse ligament
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Across palmar side of MCP joints
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Fibrous flexor sheaths
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Encolse flexor tendons in fingers
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synovial shealths
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around tendons (@joints?)
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Flexor retinaculum
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transverse carpal ligament
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Metacarpal phalangeal joint
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Condyloid
Allows Flex/extend and add/ab |
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Interphalangeal joint
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Synovial joint
PIP and DIP Bi condyloid facets: allow flex/extend and very little ab/ad |
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Lumbricals: attachments and innervations
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Tendons of flexor digitorum profundus and dorsal expansion
1,2: innervated by median nerve 3,4: ulnar nerve Flexor pollicis longus doesn't have lumbrica |
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actions of lumbrical;
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flex MC-P joints; extend IP joints
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Dorsal ad Palmer interossei
attachments; innervatios |
Metacarpals, proximal phalages via dorsal expansions
Ulnar erve |
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Siovial sheaths:
What are 2 types of syoviocytes. where are they? What are functions? |
Lining of synovial membrane
1. type A macrophage like 2. Type B secrete hyaluronic acid increasing viscosity |
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What does synovial fluid consist of ?
what kind of characteristics does it have? |
hyluronic acid, lubricin, proteinases, collagenases
thixotropic characteristics (less viscous when warmed) |
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What else does synovial fluid do besides lubrication?
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transports nutrients, oxy, CO2, waste products
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Thenar muscles: anterior
innervation and attachments |
Abductor pollicis brevis: proximal phalanx
flexor pollicis brevis: proximal phalanx opponens pollicis: 1st metacarpal All: flexor reticulum, scaphoid, trapezium Median nerve |
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Hypothenar
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abductor digiti minimi: Pisiform
flexor digiti minimi: flexor reticulum & hook of hamate opponens digiti minimi: f;exor reticulum & hook of hamate |
