Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AN10 > AN10 Midterm > Flashcards

AN10 Midterm Flashcards

Lecture 1 - 18

1
Q

Opponens Pollici

A

O: Flexor retinaculum and tubercles of scaphoid and trapezium
I: Lateral side of 1st metacarpal
A: Oppose thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Abductor Pollicis Brevis

A

O: Flexor retinaculum and tubercles of scaphoid and trapezium
I: Lateral side of base of proximal phalanx of thumb
A: Abducts thumb; helps oppose it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Flexor Pollicis Brevis

A

O: Flexor Aretinanculum and tubercles of scaphoid and trapezium
I: Lateral side of base of proximal phalanx of thumb
A: Superficial head - Flexes thumb
Deep head - ABducts thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Adductor Pollicis

A

O: Oblique head - base of 2nd and 3rd metacarpals, capitate and adjacent carpals
Transverse head- anterior surface of shaft of 3rd metacarpal
I: Medial side of base of proximal phalanx of thumb
A: Adducts thumb towards lateral border of palm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

abductor Digiti Minimi

A

O: Pisiform
I: Medial side of base of proximal phalanx of 5th digit
A: ABducts 5th digit, assists in flexion of its Proximal phalanx at the MCP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Flexor Digiti Minimi Brevis

A

O: Hook of hazmat and flexor retinaculum
I: Meidal side of base of proximal phalanx of 5th digit
A: Flexes proximal phalanx of 5th digit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Opponens Digiti Minimi

A

O: Hook of hamate and flexor retinaculum
I: Medial border of 5th metacarpal
A: Draws 5th metacarpal anterior and rotates it, bringing 5th digit onto opposition to the thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Palmer’s Brevis

A

O: Medial border of the palmar aponeurosis
I: Skin on medial border of hand
A: Wrinkles the skin of the hypothear eminence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Deep Palm Muscle - Lumbricals (1st and 2nd)

A

O: Lateral two tendons of flexor digitorum profundus (as unipennate muscles)
I: Lateral side of extensor expansions of digits 2-5
A: Flex’s MCP joints; extend IP of digits 2-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Deep Palm Muscle - Lumbricals (3rd and 4th)

A

O: Medial three tendons of flexor digitorum profundus (as bipennate msucles)
I: Lateral side of extensor expansion of digit 2-5
A: Flex MCP joints; extend IP joints of 2-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Palmar Interossei, 1-3

A

O: Palmar surfaces of 2nd, 4th and 5th metacarpals (as unipennate muscles)
I: Bases of proximal phalanges; extensor expansions of 2nd 4th and 5th digits
A: Adducts 2nd 4th and 5th digits toward axial line, assists lumbricials in flexing MCP joints and extending IP joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Dorsal interossei , 1-4

A

O: Adjacent sides of two metacarpals (as bipennate muscles)
I: Bases of proximal phalanges; extensor expansions of 2nd -4th digits
A: Abducts digits 2,3,4 from axial line; act with lumbricals in flexing MCP joints and extending IP joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Latissimus Dorsi

A

O: Illiac Crest, Thoroaco- Lumbas fascia, spinous process of last 6 thoracic vertebrae and last 3-4 ribs
I: Floor of intertubercular groove
A: Extension, rotation & medial rotation of the humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Trapezius (Upper Fibres)

A

O: External opipital Protuberance, middle 1/3 of superior nuchal line, nuchal ligament
I: Lateral 1/3 of the clavicle
A: Elevates the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Trapezius (Middle Fibres)

A

O: Spinous process of C7 to T4
I: Acromion
A: Retraction of the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Trapezius (Lower Fibres)

A

O: Spinous Process of T5 - T12
I: Spine of Scapula
A: Depress the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Rhomboid Minor / Rhomboid Major

A

Minor:
O: Nuchal ligament & spinous process C7-T1
I: Medial border of scapula at the spine of scapula
Major:
O: Spinous process T2 - T5
I: Medial border of scapula between spine and inferior angle
Both have the same action
A: Adducts (retracts scapula), does downward rotation and fixes scapula to thoracic wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Levator Scapulae

A

O: Posterior Tubercle of transverse process of C1-C4 I: Medial border of scapula superior to the root of the spine of the scapula
A: Elevates scapula and performs downward rotation of the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Pectoralis Major

A

O: Clavicular Head; Anterior surface of the medial 1/2 of the clavicle
Sternal Head; Anterior sternum, superior 6 costal cartilages and aponeurosis of the external oblique abdominal muscles
I: Lateral lip of the inter-tubercular groove of the humerus
A: Adduct, internal rotation of the humerus and extends the arm from 90 degrees of flexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Pectoralis Minor

A

O: Ribs 3-5 close to their costal cartilage
I: Coracoid process of the scapula
A: Stabilize the scapula by drawing it inferiorly and anteriorly against the thoracic wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Subclavius

A

O: Junction of first rib and it’s cartilage
I: Inferior aspect of clavicle (middle third)
A: Draws clavicle medially and anteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Serratus Anterior

A

O: External surfaces of the lateral part of the ribs 1-8
I: Anterior surface of the medial border of scapula
A: Protracts the scapula and holds it against the thoracic wall, upward rotation of scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Supraspinatus

A

O: Supraspinous fossa of scapula
I: Greater tubercle of humerus (superior facet)
A: 1st 15 degrees of arm abduction + stabilize the humerus

24
Q

Infraspinatus

A

O: Infraspinous fossa of scapula
I: Greater tubercle of humerus (middle facet)
A: Lateral rotation + stabilize humerus

25
Teres Minor
O: Middle part of lateral border of scapula I: Greater tubercle of humerus (inferior facet) A: Medial rotation of humerus + stabilize shoulder
26
Teres Major
O: Inferior angle of scapula I: Crest of the lesser tubercle (medial lip of the inter tubercular groove) A: Extension, adduction and internal rotation of the humerus "Lats little helper"
27
Subscapularis
O: Subscapular fossa of scapula I: Lesser tubercle of humerus ( middle facet) A: Medial rotation of humerus + stabilize shoulder
28
Deltoid
O: Inferior surface of the lateral 1/3 of clavicle, acromion and spine of scapula I: Deltoid Tuberosity A: All fibres abduct the shoulder, past 15 degrees Threee groups Anterior Fibers: Flex and medially rotate humerus Middler Fibers: abduct humerus Posterior Fibers: Extend and laterally rotate humerus
29
Biceps Brachii
O: Short head; Tip of coracoid process Long head: Supraglenoid tubercle of scapula I: Tuberosity of radius and bicipital aponeurosis A: Supinates forearm, flexes forearm, flexes arm, resists dislocation of shoulder
30
Brachialis
O: Distal half of anterior surface of humerus I: Coronoid process and tuberosity of ulna A: Flexes forearm in all positions , Located deep to Biceps Brachii
31
Coracobrachialis
O: Tip of coracoid process of scapula I: Middle 1/3rd of medial surface of humerus A: Helps flex and adduct the arm; resists should dislocation
32
Triceps Brachii
O: Long Head; Infra-glenoid tubercle Lateral Head: Posterior surface of humerus, superior to radial groove Medial Head; Posterior surface humerus, inferior to radial groove I: Proximal end of olecranon and facia of forearm A: Chief extensor of the forearm, long head resists dislocation, especially durning adduction
33
Anconeus
O: Lateral epicondyle of humerus I: Lateral surface of olecranon and superior part of post surface of ulna A: Assists triceps in extending forearm; stabilizes elbow
34
Pronator Teres
O: Ulnar head; Coronoid process Humeral head; Medial epicondyle of humerus I: Middle third of lateral surface of radius A: Pronates and flexes forearm at elbow
35
Flexor Carpi Radialis (FCR)
O: Medial epicondyle of humerus I: Base of 2nd metacarpal A: Flexes and abducts hand (At wrist)
36
Palmer's Longus
O: Medial epicondyle of humerus I: Distal half of flexor retinacumlum and Palmar aponeurosis A: Flexes hand at wrist, tightens palmar aponeurosis
37
Flexor Carpi Ulnaris (FCU)
O: Humeral head; Medial epicondyle of humerus Ulnar head; Oleranon and posterior border of ulna I: Pisiform, hook of hamate , 5th metacarpal A: Flexes and adducts hands
38
Flexor Digitorum Supeficialis (FDS)
O: Humeroulnar head; Medial epicondyle and coronoid process of the ulna Rasial Head; Superior half of anterior radius I: Shafts of middle phalanges of digits 2-5 A: Flexes middle phalanges of PIP joints of digits 2-5, also flexes MCP joints with stronger action
39
Flexor Digitorum Profundus (FDP)
O: Proximal 3/4 of medial and anterior surface of ulna and interosseous membrane I: Bases of distal phalanges of digits 2-5 A: Flexes distal phalanges 2-5 at DIP joint
40
Flexor Pollicis Longus
O: Anterior surface of radius and interosseous membrane I: Base of distal phalanx of thumb A: Flexes phalanges of 1st digits
41
Pronator Quadratus
O: Distal 1/4 of anterior surface of ulna I: Distal 1/4 of anterior surface of radius A: Pronates the arm found in layer 3
42
Abductor Pollicis Longus
O: Posterior surface of proximal 1/ of ulna, radius and interosseous membrane I: Base of 1st metacarpal A: ABducts thumb and extends it at CMC joint
43
Extensor Pollicis Longus
O: Posterior surface of middle 1/3 of ulna and interosseous membrane I: Dorsal aspect of base of distal phalanx of thumb A: Extends distal phalanx of thumb at IP joint; extends MCP and CMC joints
44
Extensor Pollicis Brevis
O: Posterior surface of distal 1/3 of radius and interosseous membrane I: Dorsal aspect of base of proximal phalanx of thumb A: Extends proximal phalanx of thumb at MCP joints; extends CMC joints
45
Extensor Indicis
O: Posterior surface of distal 1/3 of ulna and interosseous membrane I: Extensor expansion of 2nd digit A: Extends 2nd digit, helps extend hand at wrist
46
Supinator
O: Lateral epicondyle of humerus; radial collateral and annular ligament, supinator fossa on the ulna and crest of ulna I: Lateral, posterior and anterior surfaces of proximal 1/3 radius A: Supinates forearm; rotates radius to turn palm anterior or superior
47
Extensor Digiti Minimi
O: Lateral epicondyle of humerus I: Extensor expansions of 5th digit A: Extend 5th digit at MCO joints; secondarily at IP joints
48
Extensor Carpi Ulnaris
O: Lateral epicondyle of humerus; posterior border of ulna via a shared aponeurosis I: Dorsal aspect of base 5th metacarpal A: Extends and adducts hand at wrist
49
Extensor Digitorum
O: Lateral epicondyle of humerus I: Extensor expansion of medial 4 digits A: Extends medial 4 digits primarily at MCP joints; secondarily at IP joints
50
Extensor Carpi Radialis Longus
O: Lateral supracondylar ridge of humerus I: Dorsal aspect of base of 2nd metacarpal A: Extend and abduct hand at wrist joint; ECRL active durning fist clenching
51
Extensor Carpi Radialis Brevis
O: Lateral epicondyle of humerus I: Dorsal aspect of base of 3rd metacarpal A: Extend and abduct hand at wrist joint
52
Brachioradialis
O: Proximal 2/3 of supracondylar ridge of humerus I: Lateral surface of distal end of radius a: Weak flexion of the elbow, maximal in mid-pronation
53
Roles of Muscles
Agonist: Principle msucle producing a joint motion Antagonist: Opposite anatomic action of the agonist Synergist: Contracts the same time as the agonist Stabilizer: Muscle that is active to keep limb from moving when agonist muscle attracts
54
What is in the proximal row for the bones of the hand - laterally to medially
Scaphoid- Largest bone in the proximal row . most commonly fractured bone Lunate - moon shape , articulates proximally with the radius Triquetrum - Articulates proximally with articular disc of the distal radio-ulnar joint Pisiform- small, pea shaped bone
55
What is in the distal row for the bones of the hand - laterally to medially
Trapezium - Articulates with the 1st metacarpal, scaphoid and trapezoid Trapezoid - Articulates with the 2nd metacarpal, trapezium, capitate and scaphoid Capitate - largest bone over all in the carpals , articulates with the 3rd metacarpal, trapezoid, scaphoid lunate and hamate Hamate: articulates with the 4th and 5th metacarpals, capital and triquetral bones
56
What word is used to describing the movement of the hand
Prehension
57

AN10 (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions