Elbow joint - Articulation - Type - Movements

Articulations: - Humeroulnar - Humeroradial - Proximal radioulnar Type - Synovial hinge joint (Humeroulnar) - Synovial pivot (PRU) Movement - Hinge: Flexion, extension - PRU: pronation and supination of hand.

Pronator teres - Origin+ insertion - Innervation - Action - Related structures

Origin - Medial epicondyle [common flexor tendon] - Medial supra-epicondyle ridge Insertion - Lateral mid-shaft of radius Innervation - Median nerve Action - Pronation of forearm - Flexion at elbow Related structures - Medial border of the cubital fossa - Median nerve enters the forearm between its two heads - Inserts distally to supinator

Common flexor tendon - Origin - Muscles that attach [5]

Tendon from the medial epicondyle that serves as origin of attachment for: - Flexor carpi ulnaris - Palmaris longus - Flexor carpi radialis - Pronator teres - Flexor digitorum superficialis

Flexor carpi radialis - Origin+ insertion - Innervation - Artery - Action - Related structures

Origin - Common flexor tendon Insertion - Base of metacarpal 2,3. Innervation - Median nerve Artery - ulnar Action - Flexion at wrist - Abduction at wrist Related structures - Originates lateral and superficial to FDS

Flexor carpi ulnaris - Origin+ insertion - Innervation - Artery - Action

Origin - Common flexor tendon Insertion - Pisiform - Hook of hamate - Base of 5th metacarpal Innervation - Ulnar nerve Artery - ulnar Action - Flexion at wrist - Adduction at wrist

Palmaris longus - Origin+ insertion - Innervation - Artery - Action

Origin - Common flexor tendon Insertion - Palmar aponeurosis into distal phalanges 2-5 - Flexor retinaculum Innervation - Median nerve Artery - ulnar Action - Flexion at wrist

Flexor digitorium Superficialis - Origin+ insertion - Innervation - Artery - Action - Related structures

Origin - Common flexor tendon - Oblique line of radius Insertion - Middle phalanges 2-5 Innervation - Median nerve Artery - Ulnar Action - Flexion of MCP and PIP for d2-5 - Flexion of wrist Related structures: - Tendons travel in carpal tunnel - Tendon creates chimes to allow FDF tendons to pass

Forearm Flashcards by aderonke adesanoye

Captiulum

Lateral condyle of the humerus

- Articulates with radial head

How well did you know this?

Not at all

Perfectly

Trochlea

Medial condyle of humerus

Articulates with ulnar head

How well did you know this?

Not at all

Perfectly

Olecranon

Proximal, posterior section of the ulna
- Articulates with the posterior depression in the distal humerus

Forms bony prominence when elbow is bent

How well did you know this?

Not at all

Perfectly

Elbow joint

Articulation
Type
Movements

Articulations:

Humeroulnar
Humeroradial
Proximal radioulnar

Type

Synovial hinge joint (Humeroulnar)
Synovial pivot (PRU)

Movement

Hinge: Flexion, extension
PRU: pronation and supination of hand.

How well did you know this?

Not at all

Perfectly

Radial collateral ligament of elbow

From the lateral epicondyle to annular ligament

Stabilises joint

How well did you know this?

Not at all

Perfectly

Annular ligament of elbow

From radial notch of the ulnar
- Encircles head of radius

Stabilises radius against radial notch of ulna
- Permits supination and pronation

How well did you know this?

Not at all

Perfectly

Ulnar collateral ligament of elbow

From lateral epicondyle to supinator crest on ulna

How well did you know this?

Not at all

Perfectly

Cubital fossa

- Borders

Triangular region over anterior elbow

Boundaries:
Base of triangle: Line between medial and lateral epicondyle
- Medially= pronator teres
- Laterally= brachioradialis
- Bed= brachial

Content

Brachial artery
Biceps tendon, Bicipital aponeurosis
Median nerve
median cubital vein

Related structures

Ulnar nerve passes medially
Radial nerve passes laterally

How well did you know this?

Not at all

Perfectly

Origin of superficial forearm flexors

Common flexor origin

- Medial epicondyle

How well did you know this?

Not at all

Perfectly

Pronator teres

Origin+ insertion
Innervation
Action
Related structures

Origin

Medial epicondyle [common flexor tendon]
Medial supra-epicondyle ridge

Insertion
- Lateral mid-shaft of radius

Innervation
- Median nerve

Action

Pronation of forearm
Flexion at elbow

Related structures

Medial border of the cubital fossa
Median nerve enters the forearm between its two heads
Inserts distally to supinator

How well did you know this?

Not at all

Perfectly

Common flexor tendon

Origin
Muscles that attach [5]

Tendon from the medial epicondyle that serves as origin of attachment for:

Flexor carpi ulnaris
Palmaris longus
Flexor carpi radialis
Pronator teres
Flexor digitorum superficialis

How well did you know this?

Not at all

Perfectly

Flexor carpi radialis

Origin+ insertion
Innervation
Artery
Action
Related structures

Origin
- Common flexor tendon

Insertion
- Base of metacarpal 2,3.

Innervation
- Median nerve

Artery
- ulnar

Action

Flexion at wrist
Abduction at wrist

Related structures
- Originates lateral and superficial to FDS

How well did you know this?

Not at all

Perfectly

Flexor carpi ulnaris

Origin+ insertion
Innervation
Artery
Action

Origin
- Common flexor tendon

Insertion

Pisiform
Hook of hamate
Base of 5th metacarpal

Innervation
- Ulnar nerve

Artery
- ulnar

Action

Flexion at wrist
Adduction at wrist

How well did you know this?

Not at all

Perfectly

Palmaris longus

Origin+ insertion
Innervation
Artery
Action

Origin
- Common flexor tendon

Insertion

Palmar aponeurosis into distal phalanges 2-5
Flexor retinaculum

Innervation
- Median nerve

Artery
- ulnar

Action
- Flexion at wrist

How well did you know this?

Not at all

Perfectly

Flexor digitorium Superficialis

Origin+ insertion
Innervation
Artery
Action
Related structures

Origin

Common flexor tendon
Oblique line of radius

Insertion
- Middle phalanges 2-5

Innervation
- Median nerve

Artery
- Ulnar

Action

Flexion of MCP and PIP for d2-5
Flexion of wrist

Related structures:

Tendons travel in carpal tunnel
Tendon creates chimes to allow FDF tendons to pass

How well did you know this?

Not at all

Perfectly

Flexor digitorium profundus

Origin+ insertion
Innervation
Artery
Action
Related structures

Study These Flashcards

Deep muscle

Origin

Anteromedial surface of ulna
Adjacent interosseous membrane

Insertion
- Distal phalanx d2-5

Action
- Flexion of DIP, Wrist, MCP, PIP

Innervation

Anterior interosseous (median)
Ulnar

Artery
- Anterior interosseous (Ulnar)

Related structures

Tendons run through carpal tunnel, deep to FDS
Origin of lumbrical muscles (radial side)

Flexor Pollicus longus

Origin+ insertion
Innervation
Artery
Action
Related structures

Study These Flashcards

Origin

Anterior radial surface
Radial half of interosseous membrane

Insertion
- Base of distal phalanx of D1

Action
- Flexion of IP, MCP joint of thumb

Innervation
- Anterior interosseous (median)

Artery
- Anterior interosseous (Ulnar)

Related structures

Tendons run through carpal tunnel, lateral to other tendons
Anterior interosseous artery and vein passes between it and FDP

Pronator Quadratus

Origin+ insertion
Innervation
Artery
Action

Study These Flashcards

Origin
- Medial, anterior, distal ulnar

Insertion
- Lateral, anterior, distal radius

Innervation
- Anterior interosseous (median)

Artery
- Anterior interosseous (Ulnar)

Action
- Pronation of forearm

Supinator

Origin+ insertion
Innervation
Artery
Action

Study These Flashcards

Origin

Lateral epicondyle of humerus
Supinator crest of ulnar

Insertion
- Lateral, proximal radial surface

Innervation
- Radial

Artery
- Radial

Action
- Supination

Brachioradialis

Origin+ insertion
Innervation
Artery
Action
Related structures

Study These Flashcards

Origin
- Lateral, supraepicondylar ridge of humerus

Insertion
- Styloid process of radius

Innervation
- Radial

Artery
- Radial

Action

Flexion then half pronated
Supination when extended

Related structures

Radial nerve runs deep
Forms lateral border of cubital fossa

Anconeus

Origin+ insertion
Innervation
Action

Study These Flashcards

Origin
- Lateral epicondyle of humerus

Insertion
- Olecranon of ulnar

Action
- Stabilises elbow during pronation and supination

Innervation
- Radial

Extensor carpi radialis

Origin+ insertion
Innervation
Action

Study These Flashcards

Two parts: Brevis and longus

Origins:
Longus- Supraepicondylar ridge of humerus
Brevis- Common extensor tendon

Insertion

Dorsal base of 2nd metacarpal (longus)
Base of 3rd MC (brevis)

Action

Extension of wrist
Abduction of wrist

Innervation
- Radial

Extensor carpi ulnaris

Origin+ insertion
Innervation
Artery
Action

Study These Flashcards

Origin
- Common extensor tendon

Insertion
- Base of 5th metacarpal

Innervation
- Radial

Artery
- Ulnar

Action

Extension of wrist
Adduction of wrist

Extensor digitorium

Origin+ insertion
Innervation
Artery
Action

Study These Flashcards

Origin
- Common extensor tendon

Insertion
- Extensor hoods into middle and distal phalanges of D2-5

Innervation
- Posterior interosseous (Radial)

Action
- Extension of wrist and digits

Extensor digit minimi - Origin+ insertion - Innervation - Artery - Action

Origin - Common extensor tendon Insertion - Extensor hood into of d5 Action - Extension of D5, wrist Innervation - Radial

Extensor pollicus brevis - Origin+ insertion - Innervation - Action

Origin - Radius, interosseous membrane Insertion - Dorsal base of proximal phalanx of thumb. Innervation - Radial Action - Extension of thumb at MCP, CM

Extensor pollicus longus - Origin+ insertion - Innervation - Action

Origin - Ulnar, interosseous membrane Insertion - Dorsal base of distal phalanx of thumb. Innervation - Radial Action - Extension of thumb at MCP, IP joints

Abductor pollicus longus - Origin+ insertion - Innervation - Action

Origin - Posterior ulnar and radial surface - interosseous membrane Insertion - Base of 1st metacarpal Action - Abduction of thumb - Extension of thumb Innervation - Radial

Extensor indicis - Origin+ insertion - Innervation - Action

Origin - Distal ulna - Interosseous membrane Insertion - Extensor hood of D2 Action - Extension of D2 - Extensor of wrist Innervation - Radial

Radial nerve

From posterior cord Enters forearm laterally, under brachioradialis Branch - Superficial= sensory - Deep= motor Sensory - Posterior arm - Dorsum of hand - Posterior forearm - Inferior lateral arm Motor - Posterior interosseous= extensors of forearm - Supinator - Triceps - Brachioradialis - Anconeus

Ulnar nerve

From medial cord - Enters the cubital tunnel Motor - Flexor carpi ulnaris - Medial half of flexor digitorium profundus - Intrinsic hand muscles (lat. 2 lumbricals) Sensory - Medial hand, digits 1/2(4), 5

median nerve

Travels between FDS, FDP Motor - Flexors of forearm( XC Flexor carpi ulnaris) - Anterior interosseous = deep flexors, including Radial half of FDP Sensory - Lateral palm - Later 3.5 digits

Forearm Flashcards

(32 cards)