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BSCI201 > Muscular System > Flashcards

Muscular System Flashcards

1
Q
A

Frontal Belly
O: Epicranial aponeurosis
I: Skin of eyebrows
A: Raises eyebrows

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2
Q
A

Occipital Belly
O: occipital bone
I: Epicranial aponeurosis
A: Fixes aponeurosis and pulls scalp posteriorly

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3
Q
A

Orbicularis oculi
O: Frontal bone
I: eyelid
A: closes eyelid

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4
Q
A

Zygomaticus major
O: Zygomatic bone
I: Tissue at angle of mouth
A: Raises lateral corners of mouth -> Smiling

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5
Q
A

Zygomaticus minor
O: Zygomatic bone
I: Tissue at angle of mouth
A: Raises lateral corners of mouth -> Smiling

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6
Q
A

Orbicularis oris
O: Maxilla and mandible
I: Lips
A: compresses and purses lips, closes lips -> Kiss

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7
Q
A

Buccinator
O: Maxilla and mandible
I: Orbicularis oris
A: compresses cheek (whistling)

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8
Q
A

Masseter
O: Zygomatic bone
I: mandible
A: Jaw closure (prime mover)

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9
Q
A

Temporalis
O: Temporal bone
I: Mandible
A: closes jae, assists masseter

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10
Q
A

Platysma
O: Chest fascia
I: Mandible
A: tenses skin of neck

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11
Q
A

Sternocleidomastoid
O: Manubrium of Sternum
I: Mastoid
A: Neck Flexion

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12
Q
A

Pectoralis Major
O: clavicle, sternum
I: Humerus
A: arm flexion, prime mover

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13
Q
A

Pectoralis Minor
O: Ribs
I: Coracoid process of scapula
A: Inferior/anterior scapular movement

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14
Q
A

Serratus Anterior
O: ribs
I: scapula
A: protraction (abduction) of scapula

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15
Q
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Deltoid
O: clavicle, acromion of scapula
I: deltoid tuberosity of humerus
A: abduction of arm (prime mover)

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16
Q
A

External intercostals
O: inferior border of above rib
I: superior border of below rib
A: pulls ribs together to elevate (E=elevates)

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17
Q
A

Internal intercostals
O: superior border of rib below
I: inferior border of rib above
A: pulls ribs together to depress (I=inferior movement)

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18
Q
A

Diaphragm
O: rib, lumbar vertebrae, sternum
I: central tendon
A: inspiration (bringing in air)

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19
Q
A

Rectus Abdominis
O: pubic bone (pubis)
I: xiphoid process of sternum
A: flexes & rotates vertebral column

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20
Q
A

External oblique
O: ribs
I: pubic bone (pubis), ilium
A: compresses abdominal wall

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21
Q
A

Internal oblique
O: ilium
I: pubic bone (pubis)
A: compresses abdominal wall

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22
Q
A

Transversus Abdominis
O: ilium
I: pubic bone (pubis)
A: compresses abdominal contents

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23
Q
A

Trapezius
O: C7 and all Thoracic Vertebrae
I: acromion of scapula
A: raises, rotates, and retracts (adducts) scapula

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24
Q
A

Latissimus dorsi
O: spinous processes of thoracic/lumbar vertebrae
I: humerus
A: arm extension

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25
Infraspinatus O: scapula I: greater tubercle of humerus A: lateral arm rotation
26
Teres minor O: scapula I: greater tubercle of humerus A: lateral arm rotation
27
Supraspinatus O: scapula I: greater tubercle of humerus A: initiates arm abduction
28
Teres major O: scapula I: humerus A: extends, adducts arm
29
Rhomboids major O: spinous process T2-T5 I: scapula A: stabilizes scapula
30
Rhomboids minor O: Spinous processes of C7-T1 vertebrae I: medial scapula A: stabilizes scapula
31
Triceps brachii O: glenoid cavity of scapula I: olecranon of ulna A: extension of forearm
32
Biceps brachii O: glenoid cavity of scapula I: radial tuberosity of radius A: flexion of forearm
33
Brachioradialis O: humerus I: radial styloid process of radius A: forearm flexion synergist
34
Pronator teres O: medial epicondyle of humerus I: radius A: pronates forearm ("prone")
35
Flexor Carpi radialis O: medial epicondyle of humerus I: metacarpals A: flexor/abductor of hand
36
Palmaris longus O: medial epicondyle of humerus I: skin of palm (palmar aponeurosis) A: tenses skin/fascia of palm
37
Flexor carpi ulnaris O: medial epicondyle of humerus I: metacarpal and carpals A: flexes and adducts hand
38
Extensor carpi radialis longus O: humerus I: metacarpals A: extends and abducts hand
39
Extensor carpi radialis brevis O: lateral epicondyle of humerus I: metacarpals A: extends and abducts hand
40
Supinator O: lateral epicondyle of humerus I: radius A: supinate ("soup") forearm
41
Extensor digitorum O: lateral epicondyle of humerus I: phalanges A: finger extension
42
Extensor carpi ulnaris O: lateral epicondyle of humerus I: metacarpals A: extends and abducts hand
43
Iliopsoas O: ilium, sacrum I: lesser trochanter of femur A: flex trunk at hip joint, flex thigh
44
Sartorius O: ilium I: tibia A: flexes thigh
45
Adductor Magnus O: ischium, pubis I: linea aspera of femur A: flex thigh
46
Adductor longus O: pubis I: linea aspera of femur A: flex thigh
47
Rectus Femoris O: ilium/coxal bones I: tibial tuberosity of tibia A: flexes thigh
48
Vastus lateralis O: greater trochanter of femur I: tibial tuberosity of tibia A: extends leg
49
Vastus intermedius O: linea aspera of femur I: tibial tuberosity of tibia A: extends leg
50
Vastus medialis O: linea aspera of femur I: tibial tuberosity of tibia A: extends leg
51
Tensor fasciae latae O: ilium I: iliotibial tract (ends at lateral epicondyle of humerus) A: steadies trunk
52
Biceps femoris O: ischium I: lateral condyle of tibia A: extends thigh
53
Semitendinosus O: ischium I: tibia A: extends thigh
54
Semimembranosus O: ischium I: lateral condyle of tibia A: extends thigh
55
Gluteus maximus O: ilium, sacrum and coccyx I: femur A: powerful thigh extensor
56
Gluteus medius O: ilium I: greater trochanter of femur A: abducts thigh
57
Tibialis anterior O: lateral condyle of tibia I: tarsals and metatarsals A: dorsiflexion
58
Extensor digitorum longus O: fibula I: phalanges of foot A: prime mover of toe extension
59
Gastrocnemius O: medial & lateral condyles of femur I: calcaneus via calcaneal tendon (Achilles tendon!) A: plantar flexes foot
60
Soleus O: tibia I: calcaneus via calcaneal tendon (achilles tendon!) A: plantar flexion
61
Popliteus O: lateral condyle of femur I: tibia A: flexes & rotates leg medially
62
Tibialis posterior O: tibia and fibula I: tarsals A: prime mover of foot inversion
63
Flexor digitorum longus O; Tibia I; Phalanges of foot A: flexes toes
64
Gracilis O: Pubis I: Medial condyle of Tibia A: adducts thigh, flexes leg
65
Brachialis O: Humerus I: Coronoid process of ulna A: Flexor of forearm

BSCI201 (11 decks)

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