Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P 231 > Muscles of the Appendicular Skeleton > Flashcards

Muscles of the Appendicular Skeleton Flashcards

1
Q

Rhomboids minor and major

A

Action: retract scapula; stabilize scapula; rotate glenoid cavity downward

Origin: spinous processes of C7 (minor) and T3-T5 (major)

Insertion: medial border of scapula

Innervation: dorsal scapular n.

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

Pectoralis major

A

Action: flexes, medial rotate, and adducts arm

Origin: clavicle, sternum, ribs 1-6

Insertion: intertubercular groove of humerus

Innervation: pectoral n.

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

Deltoid

A

Action: abduct humerus

Origin: clavicle, acromion, and spine of scapula

Insertion: deltoid tuberosity

Innervation: axillary n.

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

Teres major

A

Action: extend, medially rotate, adduct humerus

Origin: posterior surface of inferior border of scapula

Insertion: intertubercular groove of humerus

Innervation: subscapular n.

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

Teres minor

A

Action: extend and laterally rotate arm at shoulder joint

Origin: lateral border scapula

Insertion: greater tubercle of humerus

Innervation: axillary n.

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

Supraspinatus

A

Action: abduct humerus

Origin: supraspinous fossa

Insertion: greater tubercle of humerus

Innervation: suprascapular n.

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

Infraspinatous

A

Action: lateral rotate humerus

Origin: infraspinous fossa

Insertion: greater tubercle of humerus

Innervation: suprascapular n.

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

Subscapularis

A

Action: medial rotate humerus

Origin: subscapular fossa

Insertion: lesser tubercle of humerus

Innervation: subscapularis n.

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

Triceps brachii

A

Action: forearm extension

Origin:
Long head: glenoid cavity inferior margin
Lateral head: posterior humerus
Medial head: posterior humerus distal radial groove

Insertion: olecranon process of ulna

Innervation: radial n.

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

Biceps brachii

A

Action: flex elbow, flex shoulder, and supinate forearm

Origin:
Short head: coracoid process
Long head: supraglenoid tubercle

Insertion: radial tuberosity

Innervation: musculocutaneous

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

Brachioradialis

A

Action: synergist of elbow flexion

Origin: distal humerus

Insertion: radial styloid process

Innervation: radial nerve

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

Brachialis

A

Action: flexor of elbow

Origin: anterior distal humerus

Insertion: ulna, coronoid process

Innervation: musculocutaneous

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

Coroacobrachialis

A

Action: adduction and flexion at shoulder

Origin: coracoid process

Insertion: medial shaft of humerus

Innervation: musculocutaneous

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

Pronator teres

A

Action: pronate forearm

Origin: medial epicondyle of humerus, coronoid process of ulna

Insertion: mid lateral surface of radius

Innervation: median

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

Flexor carpi radialis

A

Action: flexor of wrist, abduct hand

Origin: medial epicondyle of humerus

Insertion: base of metacarpals 2 and 3

Innervation: median

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

Palmaris longus

A

Action: flexor of wrist

Origin: medial epicondyle of humerus

Insertion: palmar aponeurosis

Innervation: median

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

Flexor carpi ulnaris

A

Action: flex wrist, adduct hand

Origin: medial epicondyle of humerus and olecranon of ulna

Insertion: pisiform, hamate, base of 5th metacarpal

Innervation: ulnar

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

Flexor digitorum superficialis

A

Action: flex hand, flex middle phalanges of fingers 2-5

Origin: medial epicondyle of humerus, ulna coronoid process, radius shaft

Insertion: middle phalanges of fingers 2-5

Innervation: median

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

Flexor digitorum profundus

A

Action: flex distal phalanges of fingers 2-5; hand flexion

Origin: anteriomedial surface of ulna, interosseus membrane, and coronoid process

Insertion: distal phalanges of fingers 2-5

Innervation: median n., ulnar n.

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

Extensor carpi radialis brevis and longus

A

Action: extend and abduct wrist

Origin: lateral epicondyle of humerus

Insertion: base of metacarpals 3 (brevis) and 2 (longus)

Innervation: radial

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

Extensor digitorum

A

Action: finger extension

Origin: lateral epicondyle of humerus

Insertion: distal dorsal surface of phalanges 2-5

Innervation: radial

22
Q

Extensor carpi ulnaris

A

Action: extend and adduct wrist

Origin: lateral epicondyle of humerus

Insertion: base of metacarpal 5

Innervation: radial

23
Q

Supinator

A

Action: supinate arm

Origin: lateral epicondyle of humerus; proximal ulna

Insertion: proximal end of radius

Innervation: radius (deep branch)

24
Q

Anconeus

A

Action: extend elbow

Origin: epicondyle of humerus

Insertion: lateral aspect of olecranon

Innervation: radial

25
Sartorius
Action: flex knee; flex abduct and laterally rotate thigh Origin: anterior superior iliac spine Insertion: medial proximal tibia Innervation: femoral
26
Iliacus
Action: flexion at hip Origin: iliac fossa Insertion: just inferior to lesser trochanter of femur Innervation: femoral
27
Psoas major
Action: flexion at hip; laterally flex vertebrae Origin: transverse processes and bodies of T12-L5 Insertion: lesser trochanter of femur Innervation: branches of L1-L3
28
Adductors- magnus, longus, brevis
Action: adduct, medially rotate, and flex thigh Origin: all from pubis; magnus from ischial tuberosity also Insertion: femur linea aspera and adductor tubercle Innervation: obturator
29
Gracilis
Action: adduct thigh, medially rotate and flex leg Origin: pubis body and inferior ramus Insertion: medial tibia inferior to medial condyle Innervation: obturator
30
Tensor fasciae latae
Action: flex, abduct, and medially rotate thigh Origin: anterior iliac crest and anterior superior iliac spine Insertion: iliotibial tract (IT band) Innervation: superior gluteal nerve
31
Rectus femoris | Quadriceps femoris
Action: extend knee, flex hip Origin: anterior inferior iliac spine and acetabulum Insertion: tibial tuberosity via patellar ligament Innervation: femoral nerve
32
Vastus lateralis | Quadriceps femoris
Action: extend knee Origin: greater trochanter and intertrochanteric line and linea aspera Insertion: tibial tuberosity via patellar ligament Innervation: femoral nerve
33
Vastus medialis | Quadriceps femoris
Action: extend knee Origin: intertrochanteric line of femur and linea aspera Insertion: tibial tuberosity via patellar ligament Innervation: femoral nerve
34
``` Vastus intermedius (Quadriceps femoris) ```
Action: extend knee Origin: anterior and lateral surface of femur Insertion: tibial tuberosity via patellar ligament Innervation: femoral nerve
35
Gluteus maximus
Action: extend, laterally rotate, and abduct thigh Origin: dorsal ilium, sacrum, and coccyx Insertion: gluteal tuberosity of femur and IT tract Innervation: inferior gluteal nerve
36
Gluteus medius
Action: abduct and medially rotate thigh Origin: upper lateral surface of ilium Insertion: greater trochanter of femur Innervation: superior gluteal nerve
37
Gluteus minimus
Action: abduct and medially rotate thigh Origin: external inferior surface of ilium Insertion: greater trochanter of femur Innervation: superior gluteal nerve
38
Piriformis
Action: lateral rotation and abduct thigh Origin: anterolateral surface of sacrum Insertion: greater trochanter of femur Innervation: sacral spinal nerves L5-S2
39
``` Biceps femoris (long and short heads) (Hamstrings) ```
Action: extend thigh, flex knee, laterally rotate leg Origin: ischial tuberosity; biceps short head-linea aspera Insertion: fibula head and tibia lateral condyle Innervation: tibial and common fibular sciatic
40
Semitendinosus | Hamstrings
Action: extend thigh, flex knee, medially rotate leg Origin: ischial tuberosity Insertion: upper medial tibial shaft Innervation: tibia
41
Semimembranous | Hamstrings
Action: extend thigh, flex knee, medial rotate leg Origin: ischial tuberosity Insertion: tibia medial condyle, femur lateral condyle Innervation: tibia
42
Fibularis (peroneus) longus
Action: plantar flexion, evert foot Origin: head and proximal fibula Insertion: metatarsal 1 and medial cuneiform Innervation: peroneal
43
Fibularis (peroneus) brevis
Action: plantar flexion, evert foot Origin: distal fibula Insertion: metatarsal 5 Innervation: peroneal
44
Tibialis anterior
Action: dorsiflexion and foot inversion Origin: lateral condyle and upper 2/3 of tibia, interosseus membrane Insertion: inferior surface of 1st cuneiform and metatarsal 1 Innervation: peroneal
45
Tibialis posterior
Action: inversion, plantar flexion Origin: proximal tibia and fibula, and interosseus membrane Insertion: navicular; all cuneiform; metatarsals 2-4 Innervation: tibial
46
Extensor digitorum longus
Action: toe extension, dorsiflexion Origin: lateral condyle of tibia and proximal fibula Insertion: middle and distal phalanges of toes 2-5 Innervation: deep peroneal
47
Flexor digitorum longus
Action: flex toes (2-5), plantar flexion Origin: middle third of posterior tibia Insertion: distal phalanges of toes Innervation: tibial
48
Gastrocnemius
Action: plantar flexion, flex knee Origin: medial and lateral condyle of femur Insertion: calcaneus Innervation: tibial
49
Soleus
Action: plantar flexion Origin: proximal tibia and fibula Insertion: calcaneus Innervation: tibial
50
Popliteus
Action: flex and medial rotate tibia Origin: lateral condyle of femur and lateral meniscus Insertion: proximal tibia Innervation: tibial

A&P 231 (9 decks)

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