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MSK Anatomy > Forarm (own notes - raw anatomy) > Flashcards

Forarm (own notes - raw anatomy) Flashcards

1
Q

List the muscles of the superficial anterior compartment of the forearm

A
  • flexor carpi ulnaris
  • palmaris longus
  • flexor digitorum superficialis
  • flexor carpi radialis
  • pronator teres

moving from medial to lateral

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2
Q

Describe the function, attachments and innervation of flexor carpi ulnaris

A
  • o: CFO and olecranon
  • i: via tunnel to pisiform, hook, base of 5th MT
  • a: flexion and adduction
  • n: ulnar nerve (exception to median nerve rule)
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3
Q

Describe the function, attachments and innervation of palmaris longus

A

o: CFO
i: flexor retinaculum
a: flexor of wrist
inn: median nerve

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4
Q

Describe the function, attachments and innervation of flexor digitorum superficialis

A
  • o: CFO and radius
  • i: 4 tendons that pass through tunnel and attaches to base of middle phalanges
  • a: flexion of MCP and PIP, over wrist
  • inn: median n

MEDIAN nerve slips through its heads with ulnar artery

Independent movement bc 4 muscles, 4 tendons

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5
Q

Describe the function, attachments and innervation of flexor carpi radialis

A
  • o: CFO
  • i: base of 2, 3 MCs (c.f. ECRL, ECRB)
  • a: flexion and abduction
  • inn:median nerve
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6
Q

Describe the function, attachments and innervation of pronator teres

A
  • o: CFO and coronoid process
  • i: midshaft and lateral radius
  • a: pronation over flexion
  • inn: median n.
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7
Q

List the components of the deep anterior compartment

A
  • FDP
  • FPL
  • PQ
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8
Q

Describe the funciton, attachments and innervation of FDP

A
  • o: proximal ulna and intosseous
  • i: tendons via tunnel attaching to distal phalanges
  • a:DIPs over MCP, PIP, wrist
  • inn: It is the hybrid muscle supplied by two different nerves:Medial half (associated with ring and little fingers) is innervated by ulnar nerve
    Lateral half (associated with middle and index fingers) by anterior interosseous nerve ( C8, T1)- motor branch of median nerve.
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9
Q

Describe the function, attachments and innervation of FPL

A
  • o: anterior radius and interosseous
  • i: base of distal phalamx
  • a: IP and MCP
  • inn:median
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10
Q

Describe the function, attachments and innervation of pronator quadratus

A
  • o: anterior ulna
  • i: anterior radius
  • a: pronates
  • inn: median
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11
Q

List the components of the superficial posterior compartment of the forearm

A
  • brachioradialis
  • ecrl
  • ecrb
  • edc
  • edm
  • ecu
  • anconeus
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12
Q

List the components of the deep posterior compartment of the forearm

A
  • supinator
  • APL
  • EPB
  • EPL
  • EIP
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13
Q

Describe the function, attachments and innervation of the brachioradialis

A
  • o: proximal aspect of lateral supracondylar ridge
  • i: distal radius, proximal to styloid
  • a: weak flexor (mainly due to pronation)

all posterior = radial n.

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14
Q

Describe the function, attachments and innervation of the ECRL

A
  • o: lateral supracondylar ridge
  • i: base and tendon of 2MC
  • a: extension and abduction
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15
Q

Describe the function, attachments and innervation of the ECRB

A
  • CEO
  • base and tendon of 3MC
  • extension and abduction
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16
Q

Describe the function, attachments and innervation of the EDC

A
  • CEO
  • dista forearm, 4 tendons inserting into extensor hood
  • extension IPs, MCPs
17
Q

Describe the function, attachments and innervation of the EDM

A
  • ceo
  • distal forearm, inserts into extensor hood with ED
  • extension of minimus and wrist
18
Q

Describe the function, attachments and innervation of the ECU

A
  • CEO
  • base of 5MC
  • extension and adduction
19
Q

Describe the function, attachments and innervation of the APL

A
  • posterior ulna, radius, interosseous membrane
  • base and lateral MC1
  • abduction at CMC
20
Q

Describe the function, attachments and innervation of the EPB

A
  • posterior radius and interosseous
  • base of proximal phalanx
  • ## extension of MCPP and CMC

lateral border of anatomical snuffbox

21
Q

Describe the function, attachments and innervation of the EPL

A
  • posterior ulna and interosseous membrane
  • base of distal phalanx
  • all joints extended mainly hyper-/extends the interphalangeal joint of the distal phalanx of the thumb.[6]
    It also serves as accessory extensors and adductors of the metacarpophalangeal of the proximal phalanx and carpometacarpal joints of the first metacarpal.[3]
    It may also assist in wrist joint extension.[4]

medial border of snuffbox

22
Q

Describe the function, attachments and innervation of the EIP

A
  • posterior ulna and interosseous
  • extensor hood of index finger
  • extension of index
23
Q

What is significant about the supinator?

A

Radial nerve passes through the two heads

MSK Anatomy (16 decks)

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