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Gross Anatomy Lab 5
Sieg and Adams Info
105
Anatomy
Undergraduate 2
05/27/2009

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Term
Origin of Brachioradialis
Definition
Lateral supracondylar ridge of humerus
Term
Insertion of Brachioradialis
Definition
Styloid process of radius
Term
Action of Brachioradialis
Definition
Flexion of elbow with forearm in neutral position
Term
Nerve of Brachioradialis
Definition
Radial Nerve
Term
Blood Supply of Brachioradialis
Definition
Radial Artery
Term
Origin of Supinator
Definition

Lateral epicondyle of humerus;

Annular and radial collateral ligaments;

Proximal ulna at supinator crest

Term
Insertion of Supinator
Definition
Lateral surface of proximal 1/3 of radius between anterior and posterior oblique lines
Term
Action of Supinator
Definition
Supination of forearm
Term
Nerve of Supinator
Definition
Deep Radial Nerve
Term
Blood Supply of Supinator
Definition
Posterior Interosseous Artery
Term
Origin of Extensor Carpi Radialis Longus
Definition

Lateral supracondylar ridge;

Lateral epicondyle of humerus

Term
Insertion of Extensor Carpi Radialis Longus
Definition
Base of 2nd metacarpal
Term
Action of Extensor Carpi Radialis Longus
Definition
Extension; Abduction of wrist
Term
Nerve of Extensor Carpi Radialis Longus
Definition
Radial Nerve Proper
Term
Blood Supply of Extensor Carpi Radialis Longus
Definition
Brachial Artery
Term
Origin of Extensor Carpi Radialis Brevis
Definition
Lateral epicondyle of humerus
Term
Insertion of Extensor Carpi Radialis Brevis
Definition
Base of 3rd metacarpal
Term
Action of Extensor Carpi Radialis Brevis
Definition
Extension of wrist
Term
Nerve of Extensor Carpi Radialis Brevis
Definition
Deep Radial Nerve
Term
Blood Supply of Extensor Carpi Radialis Brevis
Definition
Radial Artery
Term
Origin of Extensor Carpi Ulnaris
Definition

Lateral epicondyle of humerus;

Posterior Proximal Ulna

Term
Insertion of Extensor Carpi Ulnaris
Definition
Base of 5th metacarpal
Term
Action of Extensor Carpi Ulnaris
Definition
Extension; Adduction of wrist
Term
Nerve of Extensor Carpi Ulnaris
Definition
Deep Radial Nerve
Term
Blood Supply of Extensor Carpi Ulnaris
Definition
Radial Artery
Term
Origin of Extensor Digirotum
Definition
Lateral epicondyle of humerus
Term
Insertion of Extensor Digirotum
Definition
Extensor expansion of 4 fingers
Term
Action of Extensor Digirotum
Definition
Extension of proximal phalanges of 4 fingers at MP joints;
Assists extension of wrist
Term
Nerve of Extensor Digirotum
Definition
Deep Radial Nerve
Term
Blood Supply of Extensor Digirotum
Definition
Radial Artery
Term
Origin of Extensor Digiti Minimi
Definition
Lateral Epicondyle of humerus
Term
Insertion of Extensor Digiti Minimi
Definition
Extensor expansion of little finger
Term
Action of Extensor Digiti Minimi
Definition
Extension of proximal ohalanx of little finger at MP joint; Assist extension of wrist
Term
Nerve of Extensor Digiti Minimi
Definition
Deep Radial Nerve
Term
Blood Supply of Extensor Digiti Minimi
Definition
Radial Artery
Term
Origin of Extensor Indicis
Definition
Posterior Ulna and Interosseous membrane
Term
Insertion of Extensor Indicis
Definition
Extensor expansion of index finger
Term
Action of Extensor Indicis
Definition
Extension of proximal ohalanx of index finger at MP joint; Assists extension of wrist
Term
Nerve of Extensor Indicis
Definition
Deep Radial Nerve
Term
Blood Supply of Extensor Indicis
Definition
Posterior Interosseous Artery
Term
Origin of Extensor Pollicis Longus
Definition
Poserior Ulna and Interosseous membrane -- middle 1/3
Term
Insertion of Extensor Pollicis Longus
Definition
Base of distal phalanx of thumb
Term
Action of Extensor Pollicis Longus
Definition
Extension of distal phalanx of thumb at IP joint; assists wrist abduction
Term
Nerve of Extensor Pollicis Longus
Definition
Deep Radial Nerve
Term
Blood supply of Extensor Pollicis Longus
Definition
Posterior Interosseous Artery
Term
Origin of Extensor Pollicis Brevis
Definition
Posterior Radius; Interosseous Membrane
Term
Insertion of Extensor Pollicis Brevis
Definition
Base of proximal phalanx of thumb
Term
Action of Extensor Pollicis Brevis
Definition
Extension of proximal phalanx of thumb at MP joint; assists wrist Abduction
Term
Nerve of Extensor Pollicis Brevis
Definition
Deep Radial Nerve
Term
Blood supply of Extensor Pollicis Brevis
Definition
Posterior Interosseous Artery
Term
Origin of Abductor Pollicis Longus
Definition
Posterior Radius; Posterior Ulna; Interosseous Membrane
Term
Insertion of Abductor Pollicis Longus
Definition
Base of 1st Metacarpal
Term
Action of Abductor Pollicis Longus
Definition
Abduction of 1st Metacarpal of thumb at CM Joint; Assists wrist Abduction
Term
Nerve of Abductor Pollicis Longus
Definition
Deep Radial Nerve
Term
Blood supply of Abductor Pollicis Longus
Definition
Posterior Interosseous Artery
Term
Origin of Abductor Pollicis Brevis
Definition
Flexor retinaculum; Trapezium; Scaphoid
Term
Insertion of Abductor Pollicis Brevis
Definition
Base of proximal phalanx of thumb -- radial side
Term
Action of Abductor Pollicis Brevis
Definition
Abduction of 1st metacarpal of thumb at CM joint
Term
Nerve of Abductor Pollicis Brevis
Definition
Median Nerve
Term
Blood supply of Abductor Pollicis Brevis
Definition
Superficial Branch of the Radial Artery
Term
Origin of Adductor Pollicus
Definition
Transverse head: Anterior shaft of 3rd metacarpal
Oblique head: base if 2nd and 3rd metacarpals; capitate, trapezoid, and trapezium
Term
Insertion of Adductor Pollicus
Definition
Base of proximal phalanx of thumb -- medial side
Term
Action of Adductor Pollicus
Definition
Adduction of 2st metacarpal of thumb at Cm joint
Term
Nerve of Adductor Pollicus
Definition
Ulnar Nerve
Term
Blood supply of Adductor Pollicus
Definition
Superficial branch of radial artery
Term
Origin of Flexor Pollicis Brevis
Definition
Superficial head: flexor retinaculum and trapezium
Deep Head: trapezoid and capitate
Term
Insertion of Flexor Pollicis Brevis
Definition
Base of proximal phalanx of thumb -- radial side
Term
Action of Flexor Pollicis Brevis
Definition
Flexion of proximal phalanx of thumb at MP joint
Term
Nerve of Flexor Pollicis Brevis
Definition
Superficial Head: Median Nerve
Deep Head: Ulnar Nerve
Term
Blood Supply of Flexor Pollicis Brevis
Definition
Superficial Branch of Radial Artery
Term
Origin of Opponens Pollicis
Definition
Flexor retinaculum; Trapezium
Term
Insertion of Opponens Pollicis
Definition
Lateral shaft of 1st metacarpal
Term
Action of Opponens Pollicis
Definition
Opposition of thumb at CM joint
Term
Nerve of Opponens Pollicis
Definition
Median Nerve
Term
Blood Supply of Opponens Pollicis
Definition
Superficial Branch of Radial Artery
Term
Origin of Flexor Digiti Minimi
Definition
Flexor Retinaculum; Hook of hamate
Term
Insertion of Flexor Digiti Minimi
Definition
Nase of proximal phalanx of little finger
Term
Action of Flexor Digiti Minimi
Definition
Flexion of proximal phalanx of little finger at MP joint
Term
Nerve of Flexor Digiti Minimi
Definition
Ulnar Nerve
Term
Blood Supply of Flexor Digiti Minimi
Definition
Ulnar Artery
Term
Origin of Opponens Digiti Minimi
Definition
Flexor retinaculum; hook of Hamate
Term
Insertion of Opponens Digiti Minimi
Definition
Ulnar border of 5th metacarpal
Term
Action of Opponens Digiti Minimi
Definition
Opposition of little finger at Cm joint
Term
Nerve of Opponens Digiti Minimi
Definition
Ulnar nerve
Term
Blood Supply of Opponens Digiti Minimi
Definition
Ulnar artery
Term
Origin of Abductor Digiti Minimi
Definition
Pisiform
Term
Insertion of Abductor Digiti Minimi
Definition
Base of proximal phalanx of little finger -- ulnar side
Term
Action of Abductor Digiti Minimi
Definition
Abduction of proximal phalanx of little finger at MP joint
Term
Nerve of Abductor Digiti Minimi
Definition
Ulnar Nerve
Term
Blood Supply of Abductor Digiti Minimi
Definition
Ulnar Artery
Term
Origin of Dorsal Interossei
Definition
Each interossei has 2 heads arising from adjacent dorsal surfaces of metacarpals
Term
Insertion of Dorsal Interossei
Definition
Base of proximal phalanges to extensor expansion of 2nd, 3rd, and 4th fingers
Term
Action of Dorsal Interossei
Definition
Abduction of 2nd and 4th finger at MP joints; Abduction and adduction of 3rd finger at MP joints; Assists lumbricals in MP flexion and PIP and DIP extension of fingers 2, 3, and 4
Term
Nerve of Dorsal Interossei
Definition
Ulnar Nerve
Term
Blood Supply of Dorsal Interossei
Definition
Deep Palmar Arch
Term
Origin of Lumbricals
Definition
Flexor Digitorum Profundus Tendons
Term
Insertion of Lumbricals
Definition
Extensor Expansion of 2nd, 3rd, 4th, and 5th fingers at proximal phalanges
Term
Action of Lumbricals
Definition
Flexion of fingers at MP joints; Extension of fingers at PIP and DIP joints
Term
Nerve of Lumbricals
Definition
Radial 2 fingers: median nerve
Ulnar 2 fingers: ulnar nerve
Term
Blood Supply of Lumbricals
Definition
Deep Palmar Arch
Term
Origin of Palmar Interossei
Definition
Shaft of 2nd, 4th, and 5th metacarpals -- palmar surface
Term
Insertion of Palmar Interossei
Definition
Base of proximal phalanges to extensor expansion of 2nd, 4th, and 5th fingers
Term
Action of Palmar Interossei
Definition
Adduction of the 2nd, 4th, and 5th fingers at MP joints; Assists lumbricals in MP flexion and PIP and DIP extension of fingers 2, 3, and 4
Term
Nerve of Palmar Interossei
Definition
Ulnar Nerve
Term
Blood Supply of Palmar Interossei
Definition
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