Term
| Abductor Pollicis Brevis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Tubercles of scaphoid and trapezium, flexor retinaculum
I: Base of proximal phalanx of thumb
N: Median Nerve
A: Abducts Thumb
B: Superficial Palmar Arch |
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Term
| Flexor pollicis brevis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Tubercles of scaphoid and trapezium, flexor retinaculum
I: Base of proximal phalanx of thumb
N: Median Nerve
A: Flexes Thumb
B: Superficial Palmar Arch |
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Term
| Opponens Pollicis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Tubercles of scaphoid and trapezium, flexor retinaculum
I: 1st Metacarpal
N: Median Nerve
A: Opposes Thumb
B: Superficial Palmar Arch |
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Term
| Adductor Pollicis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Oblique head: bases of 2nd and 3rd metacarpals, capitate, adjacent carpals
Transverse head: shaft of 3rd metacarpal
I: Base of proximal phalanx of thumb
N: Ulnar Nerve
A: Adducts Thumb
B: Deep palmar arch
--
Has two heads, transverse and oblique |
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Term
| Abductor digiti minimi Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Pisiform
I: Base of proximal phalanx of 5th digit
N: Ulnar Nerve
A: Abducts 5th finger
B: Ulnar Artery |
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Term
| Flexor digiti minimi brevis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Hook of hamate, flexor retinaculum
I: Base of proximal phalanx of 5th digit
N: Ulnar Nerve
A: Flexes Proximal Phalanx of 5th finger
B: Ulnar Artery |
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Term
| Opponens digiti minimi Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Hook of hamate, flexor retinaculum
I: 5th metacarpal
N: Ulnar Nerve
A: Draws 5th metacarpal anterior and rotates it, brining 5th finger into opposition with thumb
B: Ulnar Artery |
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Term
| Lumbricals Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: 1st & 2nd: lateral 2 tendons of flexor digitorum profundus 3rd & 4th: medial 3 tendons of flexor digitorum profundus
I: Extensor expansions of 2–5 fingers
N: 1st&2nd: median n.
3rd&4th: ulnar n.
A: Flex metacarpophalangeal joints of 2nd-5th fingers
B: superficial palmar arch, common palmar digital arteries, deep palmar arch, dorsal digital artery (EVERYTHING) |
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Term
| Dorsal Interossei (4) Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Adjacent sides of index, middle, and ring fingers
I: Bases of proximal phalanges, extensor expansions of 2nd-4th fingers
N: Ulnar Nerve
A: Abduct 2nd-4th fingers
B: Dorsal metacarpal artery and palmar metacarpal artery |
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Term
| Palmar Interossei (3) Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: 2nd, 4th, and 5th metacarpals
I: Bases of proximal phalanges, extensor expansions of 2nd, 4th and 5th fingers
N: Ulnar Nerve
A: Adduct 2nd, 4th, and 5th fingers
B: Deep palmar arch |
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Term
| Coracobrachialis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Coracoid process of scapula
I: Middle third of medial surface of humerus
N: Musculocutaneous Nerve
A: Flexes and adducts arm
B: Brachial Artery |
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Term
| Biceps Brachii Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Short head: coracoid process of scapula
Long head: supraglenoid tubercle of scapula
I: Radial tuberosity and bicipital aponeurosis into deep fascia on medial part of forearm
N: Musculocutaneous Nerve
A: Flexes forearm when it is supine and Supinates it as well
B: Brachial Artery |
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Term
| Brachialis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Distal half of anterior surface of humerus
I: Coronoid process and tuberosity of ulna
N: Musculocutaneous nerve
A: Flexes forearm
B: Radial Recurrent Artery |
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Term
| Triceps Brachii Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Long head: infraglenoid tubercle of scapula Lateral head: posterior surface of humerus superior to radial groove Medial head: posterior surface of humerus inferior to radial groove
I: Olecranon of Ulna
N: Radial Nerve
A: Extends Forearm
B: Deep Brachial Artery |
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Term
| Aconeus Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Lateral epicondyle of humerus
I: Lateral olecranon, superior posterior surface of ulna
N: Radial Nerve
A: Assists triceps brachii muscle
B: deep brachial artery, recurrent interosseous artery |
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Term
| What do Opponens Pollicis, Flexor pollicis brevis, and Abductor Pollicis Brevis have in common? |
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Definition
They all have the same origin, innervation, and blood supply
O: Tubercles of scaphoid and trapezium, flexor retinaculum
I: Median Nerve
B: Superficial Palmar Arch |
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Term
| What nerve innervates the anterior compartment of the arm? |
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Definition
Musculocutaneous
Innervates Coracobrachialis, Biceps Brachii, Brachialis |
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Term
| What nerve innervates the posterior compartment of the arm? |
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Definition
Radial nerve
Innervates Triceps Brachii and Anconeus |
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Term
| List the bones of the wrist from medial to lateral |
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Definition
| Triquetrum (proximal) & Pisiform (distal & on top of Triquetrum), Lunate (proximal) & Hamate (distal), Capitate (large & kind of center of wrist), Scaphoid (large & proximal) & Trapezoid (small & distal), Trapezium (just under the thumb/1st metacarpal) |
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Term
| What constitutes the carpal tunnel? |
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Definition
| The flexor retinaculum, 9 flexor tendons, median nerve. |
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Term
| Which hand bone can you not see/palpate from the dorsal side of the hand? |
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Definition
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Term
| Name the thenar muscles from proximal to distal (3) |
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Definition
| Opponens Pollicis, Abductor Pollicis Brevis, Flexor Pollicis Brevis |
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Term
| Name the hypothenar muscles from medial to lateral (3) |
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Definition
| Abductor Digiti Minimi, Opponens Digiti Minimi, Flexor Digiti Minimi Brevis |
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Term
| What tendons make up the anterior and posterior borders of the snuff box? |
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Definition
The posterior border of the snuffbox is the tendon of the extensor pollicis longus.
The anterior border is a pair of parallel and intimate tendons, of the extensor pollicis brevis and the abductor pollicis longus. |
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Term
| What metacarpal bones meet up with what carpal bones? |
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Definition
Metatarsal I (thumb) meets up with the Trapezium
Metatarsal II (index) meets up mostly with the Trapezoid secondarily and Trapezium, and only touches the capitulum
Metatarsal III (middle) meets up almost entirely with the Capitate
Metatarsal IV & Metatarsal V both meet up with the Hamate |
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Term
| The condition “wrist-drop” results from a lesion of which nerve? |
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Definition
Wrist drop is a condition where a person cannot extend their wrist and it hangs flaccidly.
It results from a lesion at the site of either the posterior cord or radial nerve
Can also result from a broken humerus as the radial nerve runs through the radial groove on the lateral border of the humerus |
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Term
| Assuming there is a fracture of the humeral shaft, what structures are most likely to be injured with the bone? (2) |
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Definition
| Radial Nerve and Brachial artery |
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Term
| Define the location and function of the palmar aponeurosis |
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Definition
Continuous with the palmaris longus tendon; Invests the muscles of the palm, and consists of central (thick), medial (thin), and lateral (very thin) portions.
It gives firm attachment to the skin of the palm to improve the grip, and protects the underlying tendons. |
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Term
| What type of joint is the metatarsophalangeal joint? |
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Definition
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Term
| Where is the volar radioulnar ligament located? |
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Definition
| From the head of the ulna to right next to it on the radius |
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Term
| Where does the volar/palmar radiocarpal ligament attach? |
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Definition
| above to the anterior margin of the lower end of the radius, to its styloid process, and to the front of the lower end of the ulna; its fibers pass downward and medialward to be inserted into the volar surfaces of the scaphoid, lunate, and triangular bones, some being continued to the capitate. |
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Term
| What ligaments hold the pisiform? |
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Definition
| The pisohamate ligament, pisometacarpal ligament (attaches to 3, 4, 5), and the articular capsule |
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Term
| Which bones are in the proximal and distal rows of the carpal bones? |
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Definition
Proximal - Scaphoid, Lunate, Triquetrum, Pisiform
Distal - Trapezium, Trapezoid, Captitate, Hamate |
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Term
| What type of joint is the radioulnar joint? |
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Definition
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Term
| What ligaments surround the elbow? |
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Definition
| Anteiror and Posterior Ligaments, Radial Collateral Ligament, Ulnar Collateral Ligament, and Annular Ligament |
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Term
| Where does the inferior transverse scaupular ligament run? |
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Definition
| Aka the glenospinous ligament, runs from the posterior aspect of the glenoid cavity to the spine of the scapula just medial to the acromion |
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Term
| A bone breakage at the surgical neck would result in what two potential injuries? |
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Definition
| Axillary nerve and the posterior humeral circumflex artery |
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Term
| What structure is a supracondylar fracture most likely to damage? |
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Definition
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Term
What structure(s) is a fracture of the scaphoid likely to damage?
What structure(s) is a fracture of the hamate likely to damage? |
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Definition
A fracture of the scaphoid is likely to damage the radial artery and cause avascular necrosis of the bone and degenerative joint disease of the wrist.
A fracture of the hamate is likely to damage the ulnar nerve and artery because they are near the hook of the hamate. |
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Term
| What is a bennet's fracture? Boxers fracture? |
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Definition
| Bennett’s fracture is a fracture of the base of the metacarpal of the thumb. Boxer’s fracture is a fracture of the necks of the second and third metacarpals, seen in professional boxers, and typically of the fifth metacarpal in unskilled boxers. |
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Term
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Definition
an entrapment of the ulnar nerve in the Guyon’s canal,
which causes pain, numbness, and tingling in the ring and little fingers, followed by loss of sensation and motor weakness. |
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Term
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Definition
A progressive thickening, shortening, and fibrosis of
the palmar fascia, especially the palmar aponeurosis, producing a flexion deformity of fingers in which the fingers are pulled toward the palm (inability to fully extend fingers), especially the third and fourth fingers. |
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