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gross anatomy DPT > bb ch 7, 42, 45 - quiz 3 > Flashcards

bb ch 7, 42, 45 - quiz 3 Flashcards

(102 cards)

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1
Q

What is the origin of trapezius?

A

Posterior skull (occipital bone)
Spinous processes of all c vertebrae via ligament (ligamentum nuchae)
Spinous process of all t vertebrae

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2
Q

What is the insertion of trapezius?

A

lateral 1/3 of clavicle
acromion
crest of spine of scapula, superior lip (origin of deltoid)

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3
Q

What is the action of trapezius?

A

Upward rotation of scapula
Depress/elevate scapula and lateral clavicle

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4
Q

What is the innervation of trapezius?

A

CN XI accessory n
Ventral rami of C3 + C4

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5
Q

What is the origin of latissimus dorsi?

A

lower 3-4 ribs
spinous processes of lower 6 T vertebrae
Spinous processes of L + S vetebrae via aponeurosis
Iliac crest

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6
Q

What is the insertion of latissimus dorsi?

A

Intertubercular groove of humerus

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7
Q

What is the action of latissimus dorsi?

A

Add arm
ext arm
IR arm

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8
Q

What is the innervation of latissimus dorsi?

A

Thoracodorsal n.

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9
Q

What is the origin of levator scapulae?

A

Transverse processes of CV1-CV4

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10
Q

What is the insertion of levator scapulae?

A

Medial border of scapula, superior to scapular spine

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11
Q
A
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12
Q

What is the action of levator scapulae?

A

elevation of scapula

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13
Q

What is the innervation of levator scapulae?

A

Ventral rami of C3 and C4

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14
Q

What is the origin of rhomboid minor?

A

Spinous processes of CV7 and TV1

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15
Q

What is the insertion of rhomboid minor?

A

medial border of scapula at scapular spine

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16
Q

What is the action of rhomboid minor?

A

Adduction of scapula

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17
Q

What is the innervation of rhomboid minor?

A

Dorsal scapular nerve

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18
Q

What is the origin of rhomboid major?

A

Spinous processes of TV2 to TV5

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19
Q

What is the insertion of rhomboid major?

A

medial border of scapula inferior to scapular spine

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20
Q

What is the action of rhomboid major?

A

adduction of scapula

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21
Q

What is the innervation of rhomboid major?

A

dorsal scapular nerve

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22
Q

What is the other name for erector spinae?

A

Sacrospinalis

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23
Q

How many muscles is erector spinae made of? Which ways are they oriented?

A

3 longitudinal muscles

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24
Q

Where does erector spinae split into three muscles? What are the names, specifically medial to lateral? Briefly describe each of the three.

A

Splits above the 12th rib

Spinalis - cm wide muscle along spine
Longissimus - longest, reaches the skull
Iliocostalis - most lateral, ilium to ribs, where it inserts

I LOVE SPAGHETTI

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25
Where does erector spinae originate?
Sacrum and ilium
25
What is the innervation of erector spinae and muscles that split off of it?
Segmental innervation from dorsal rami
25
What is the action of erector spinae?
It is an important postural muscle that holds the spine erect by extending the vertebral column
26
What is the origin of deltoid?
Crest of spine of scapula, inferior lip Acromion Lateral third of clavicle
27
What is the insertion of deltoid?
deltoid tuberosity of humerus
28
What is the action of deltoid?
Clavicular (ant.): flex arm, IR arm Acromial (middle): abd arm Spinous (post.): extend arm, ER arm
29
What is the innervation of deltoid?
axillary n
30
What is the origin of supraspinatus?
supraspinous fossa
31
What is the insertion of supraspinatus?
greater tubercle of humerus, superior third
32
What is the action of supraspinatus?
abd arm 0-30 degrees in scapular plane
33
What is the innervation of supraspinatus?
suprascapular n.
34
Where is the supraspinatus tendon and what is likely in this location?
Between acromion and head of humerus, subject to impingement, degeneration, rupture
35
What is the origin of infraspinatus?
infraspinous fossa
36
What is the insertion of infraspinatus?
greater tubercle of humerus, middle third
37
What is the action of infraspinatus?
ER arm
38
What is the innervation of infraspinatus?
suprascapular n.
39
What is the origin of teres minor?
Lateral margin of infraspinous fossa
40
What is the insertion of teres minor?
greater tubercle of humerus, inferior third
41
What is the action of teres minor?
ER arm
42
What is the innervation of teres minor?
axillary n.
43
What is the origin of teres major?
inferior angle of scapula, dorsal surface
44
What is the insertion of teres major?
crest of lesser tubercle of humerus
45
What is the action of teres major?
Add arm IR arm
46
What is the innervation of teres major?
lower subscapular n.
47
What is the origin of subscapularis?
subscapular fossa
48
What is the insertion of subscapularis?
Lesser tubercle of humerus crest of lesser tubercle of humerus
49
What is the action of subscapularis?
IR arm
50
What is the innervation of subscapularis?
Upper subscapular nerve Lower subscapular nerve
51
What is the job of the rotator cuff?
To keep the humeral head in glenoid fossa
52
What is the triangle of auscultation of the shoulder? What are the borders?
Open space where doctors listen to your lungs Inferior border: latissimus dorsi Medial: trapezius Lateral: medial border of scapula
53
What makes up the floor of the triangle of auscultation?
Rhomboid major Chest wall
54
What are the boundaries for the triangular space of the shoulder?
Superior: teres minor Inferior: teres major Anterior: subscapularis Lateral: long head of triceps brachii
55
What are the contents of the triangular space of the shoulder?
Circumflex scapular artery
56
What are the boundaries of the quadrangular space of the shoulder?
Superior: teres minor Inferior: teres major Anterior: subscapularis Medial: long head of triceps brachii Lateral: surgical neck of humerus
57
What are the contents of the quadrangular space of the shoulder?
Posterior circumflex humeral artery Axillary nerve
58
What are the boundaries of the triangular interval of the shoulder?
Superior: teres major Medial: long head of triceps Lateral: lateral head of triceps
59
What are the contents of the triangular interval of the shoulder?
Profunda brachii artery Radial nerve
60
What is the origin of pronator teres? Which compartment of the forearm is it in?
Superficial: medial supracondylar ridge of humerus, medial epicondyle of humerus Deep: coronoid process of ulna ANTERIOR SUPERFICIAL
61
What is the insertion of pronator teres?
middle lateral radius
62
What is the action of pronator teres?
pronate forearm
63
What is the innervation of pronator teres?
median nerve
64
What is the origin of flexor carpi radialis? Which compartment of the forearm is it in?
medial epicondyle of humerus ANTERIOR SUPERFICIAL
65
What is the insertion of flexor carpi radialis?
Base of 2nd and 3rd metacarpal, anterior surface
66
What is the action of flexor carpi radialis?
Flex and abd hand
67
What is the innervation of flexor carpi radialis?
Median nerve
68
What is the origin of palmaris longus? Which compartment of the forearm is it in?
medial epicondyle of humerus ANTERIOR SUPERFICIAL
69
What is the insertion of palmaris longus?
Palmar aponeurosis Flexor retinaculum
70
What is the action of palmaris longus?
weak hand flexion
71
What is the innervation of palmaris longus?
median n
72
What is the origin of flexor carpi ulnaris? Which compartment of the forearm is it in?
Humeral: medial epicondyle of humerus Ulnar: olecranon process of ulna. posterior shaft of ulna ANTERIOR SUPERFICIAL
73
What is the insertion of flexor carpi ulnaris?
Pisiform Hamate via pisohamate ligament Base of 5th metacarpal via pisometacarpal joint
74
What is the action of flexor carpi ulnaris?
flex and add hand
75
What is the innervation of flexor carpi ulnaris?
ulnar n
76
Muscles originating from the medial epicondyle share the same tendon of origin. What is it called?
Common flexor tendon
77
What is the origin of flexor digitorum superficialis? Which compartment of the forearm is it in?
Humeral: medial epicondyle of humerus Ulnar: coronoid process of ulna Radial: proximal anterior radius ANTERIOR INTERMEDIATE
78
What is the insertion of flexor digitorum superficialis?
Base of middle phalanx of digits 2-5, anterior surface
79
What is the action of flexor digitorum superficialis?
Flexion of middle phalanx onto proximal phalanx at proximal IP joint of digits 2-5
80
What is the innervation of flexor digitorum superficialis?
Median n
81
What lies under the arch of FDS?
Median nerve and ulnar artery
82
Which tendons lie anterior to the others in anterior intermediate muscle area?
Tendons 3, 4 lie anterior to tendons 2, 5
83
What is the origin of flexor pollicis longus? Which compartment of the forearm is it in?
anterior distal radius ANTERIOR DEEP
84
What is the insertion of flexor pollicis longus?
base of distal phalanx of thumb
85
What is the action of flexor pollicis longus?
flexion of distal phalanx of thumb at IP joint
86
What is the innervation of flexor pollicis longus?
AIN
87
What is the origin of flexor digitorum profundus? Which compartment of the forearm is it in?
Proximal 3/4 of anterior, medial, posterior ulna Coronoid process of ulna ANTERIOR DEEP
88
What is the insertion of flexor digitorum profundus?
base of distal phalanx of digits 2-5, anterior surface
89
What is the action of flexor digitorum profundus?
Flexion of distal phalanx onto middle phalanx at distal IP joint of digits 2-5
90
What is the innervation of flexor digitorum profundus?
Lateral: AIN Medial: ulnar n.
91
What is the origin of pronator quadratus? Which compartment of the forearm is it in?
Anterior surface of distal 1/4 of ulna ANTERIOR DEEP
92
What is the insertion of pronator quadratus?
anterior surface of the distal 1/4 of the radius
93
What is the action of pronator quadratus?
pronation of forearm
94
What is the innervation of pronator quadratus?
AIN
95
Follow the path of the median nerve.
Made of lateral and medial roots of the median nerve via the brachial plexus Into medial compartment of arm with no innervation Through the cubital fossa, most medial by brachial artery and within CF, gives off AIN Enters forearm between two heads of origin of pronator teres Courses to proximal forearm, deep to arch of FDS with ulnar artery Goes between FDS and FDP Innervates these muscles of the forearn: PRONATOR TERES FLEXOR CARPI RADIALIS PALMARIS LONGUS FLEXOR DIGITORUM SUPERFICIALIS Proximal to flexor retinaculum, gives off the palmar branch then goes anterior to flexor retinaculum to supply hand cutaneously Goes through carpal canal and enters hand
96
Follow the path of the anterior interosseous nerve.
Comes off as a branch of median nerve within cubital fossa Courses distal along anterior surface of interosseous membrane between FPL and FDP Innervates 2.5 muscles in the forearm: FLEXOR DIGITORUM PROFUNDUS* FLEXOR POLLICIS LONGUS PRONATOR QUADRATUS *: only the lateral half of this muscle
97
Follow the path of the ulnar nerve.
Comes off of the medial cord of the brachial plexus after the medial root is given off Goes through medial compartment of arm with no innervation Pierces posterior lamina of medial intermuscular septum passing from medial to posterior compartment of arm Goes posterior to medial epicondyle with superior ulnar collateral artery Enters forearm by passing between two heads of origin of FCU Goes between FCU and FDP Innervates 1.5 muscles in the forearm: FCU FDP* *: only medial half of this muscle courses with ulnar artery in distal half of forearm Gives off dorsal branch to supply hand cutaneously Proximal to flexor retinaculum, also gives off palmar branch that courses anterior to flexor retinaculum to supply hand cutaneously In wrist, courses with ulnar artery as it enters the hand by passing anteriorly to flexor retinaculum, outside carpal canal and through Guyon's Canal
98
Follow the path of the radial artery.
Begins as terminal branch of brachial artery within cubital fossa Courses distal in forearm with superficial branch of radial nerve deep to brachioradialis Through anatomical snuffbox and enter dorsum of hand
99
Follow the path of the ulnar artery.
Begins as terminal branch of brachial artery within cubital fossa In proximal forearm, gives off common interosseous artery Goes deep to arch of FDS with median nerve Courses the distal half of forearm with ulnar nerve between FCU and FDP In the wrist, courses with ulnar nerve as it enters the hand anteriorly to flexor retinaculum, outside carpal canal and through Guyon's Canal
100
Follow the path of the common interosseous artery.
Begins as branch off of ulnar artery in proximal forearm Courses a short distance before dividing into two terminal branches: ANTERIOR INTEROSSEOUS ARTERY Distal on the anterior surface of interosseous membrane Supplies muscles of anterior forearm and give a branch to the wrist Ends by anastomosing with posterior interosseous artery POSTERIOR INTEROSSEOUS ARTERY Distal on posterior surface of interosseous membrane Supplies muscles of posterior forearm and gives branch of the wrist Ends by anastomosing with anterior interosseous artery

gross anatomy DPT (5 decks)

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