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Anatomy 32 > Human Muscular System > Flashcards

Human Muscular System Flashcards

1
Q

Occipitofrontalis

A

Frontal Belly and Occipital Belly

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2
Q

Temporalis

A

Lateral muscle located on the temporal bone

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3
Q

Orbicularis Oculi

A

A: Closes Eye

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4
Q

Zygomaticus Major and Minor

A

Smile muscles

A: Elevates corner of mouth

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5
Q

Orbicularis Oris

A

A: closes lips

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6
Q

Masseter

A

A: Elevates Jaw

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7
Q

Platysma

A

Located Anterior to the SCM

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8
Q

Sternocleidomastoid (SCM)

A

Located posterior to Platysma

Medial Head
Lateral Head

A: flexes neck

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9
Q

Pectoralis Major

A

O: sternal end of clavicle, sternum, cartilage of ribs 1-6
I: Greater tubercle of humerus
A: Flexes Arm

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10
Q

Pectoralis Minor

A

Located inferior of Pectoralis Major

A: protracts and rotates scapula inferiorly

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11
Q

Serratus Anterior

A

Located Posterior to Pectoralis Minor and lateral to external intercostals

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12
Q

External Intercostals

A

A: elevates ribs

Lateral muscles inbetween ribs

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13
Q

Interal Intercostals

A

A: depresses ribs

Medial muscles inbetween ribs

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14
Q

Rectus Abdominis

A

A: flexion of the trunk

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15
Q

External Oblique

A

Anterior abdominal region

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16
Q

Internal Oblique

A

Located lateral to rectus abdominis

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17
Q

Linea Alba

A

Located medial of Rectus Abdomins

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18
Q

Diaphragm

A

Located below the lungs and behind the ribs

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19
Q

Latissimus Dorsi

A

O: Lower six thoracic vertebrae, lumbar vertebrae, and illac crest
I: intertubercular sulcus of humerus
A: extends arm

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20
Q

Splenius Capitis

A

Located on the posterior neck region

A: extends neck

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21
Q

Teres Major

A

Inferior to Teres Minor

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22
Q

Teres Minor

A

O: Lateral border of scapula
I: Greater tubercle of humerus
A: laterally rotates arm

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23
Q

Erector Spinae

A

Located inferior to the Rhomboids posterior on the back

A: extends vertebral column

24
Q

Supraspinatus

A

O: supraspinous fossa of the scapula
I: greater tubercle of humerus
A: abducts arm

25
Infraspinatus
Located in the infraspinous fossa of scapula A: laterally rotates arm
26
Subscapularis
Located in the subscapular fossa of scapula (Anterior side)
27
Deltoid
O: lateral third of clavicle, acromion, and scapular spine I: deltoid tuberosity of humerus A: abducts the arm
28
Biceps Brachii
(Two origins: same Insertion and Action) Long head O: supraglenoid tubercule of scapula Short head O: coracoid process of scapula I: radial tuberosity A: flexes and supinates forearm
29
Brachialis
Posterior to Biceps Brachii (underneath them) A: flexes forearm
30
Triceps Brachii
(Three origins: same Insertion and Action) Long Head O: infraglenoid tubercle of scapula Lateral Head O: posterior shaft of humerus Medial Head O: posterior shaft of humerus I: Olecranon of Ulna A: Extends forearm
31
Brachioradialis
A: synergist in forearm flexion
32
Extensor Digitorum
Located posterior of forearm A: extends fingers
33
Flexor Carpi Ulnaris
Located most medial side of forearm A: Flexes Wrist
34
Extensior Carpi Ulnaris
Located posterior of forearm In between Extensor Digitorum and Flexor Carpi Ulnaris
35
Flexor Carpi Radialis
Right next to Brachioradialis on medial side
36
Point and locate all 5 forearm muscles rn
Anterior side of forearm: - Brachioradialis - Flexor Carpi Radialis Most medial side of forearm: - Flexor carpi ulnaris Posterior side of forearm: - Extensor carpi ulnaris - Extensor Digitorum
37
Iliopsoas
(2 closely related muscles with same insertions and actions) Iliacus O: Iliac Fossa Psoas Major O: Lumbar vertebrae and T12 Psoas Major is more medial than the Iliacus I: lesser trochanter of femur A: thigh flexion
38
Tensor Fasciae Latae
O: Anterior aspect of illiac crest and anterior superior illiac spine I: Iliotibial tract
39
Pectineus
Superior muscle attached to Pubis bone
40
Adductor Longus
Middle Muscle attached to Pubis bone (Inferior to Pentineus)
41
Gracillis
Medial muscle attached to Pubis bone (inferior to Adductor Longus)
42
Sartorius
O: Anterior Superior Illiac Spine I: Medial Aspect of proximal tibia
43
Rectus Femoris
O: anterior inferior iliac spine I: patella and tibial tuberosity via patellar ligament
44
Vastus Medialis
O: Iinea aspera of femur I: patella and tibial tuberosity via patellar ligament
45
Vastus Lateralis
O: greater trochanter of femur I: patella and tibial tuberosity via patellar ligament
46
Patellar Tendon
Between patella and quadriceps group
47
Gluteus Medius
O: Ilium I: greater trochanter of femur A: abducts the thigh
48
Gluteus Maximus
O: Ilium, sacrum, and coccyx I: Gluteal tuberosity of femur A: extends the thigh
49
Adductor Magnus
Located lateral to the Gracilis Only seen on the posterior of hamstrings
50
Hamstring Group
(Three separate Insertions, same Origin and Action) Biceps Femoris I: Lateral condyle of tibia Semitendinosus I: Medial aspect of tibia Semimembranosus I: Medial condyle of tibia O: ischial tuberosity A: Flexes the knee (curls the leg)
51
Gastrocnemius (calf)
(2 heads with different origin, same Insertion and Action) Lateral head O: lateral condyle of femur Medial head O: medial condyle of femur I: calcaneus via calcaneal tendon (Achille's Tendon) A: plantar flexion
52
Solecus
Found only via lateral view of calf Anterior to gastrocnemius
53
Fibularis Longus
Anterior to Soleus In between Soleus and Extensor Digitorum
54
Extensor Digitorum Longus
In between Soleus and Tibialis Anterior
55
Tibialis Anterior
O: Lateral condyle and tibial shaft I: Medial cuneiform and first metatarsal bone A: Dorsiflexion
56
Ligamentum Nuchae
Medial posterior neck attachment
57
Dorsal Lumbar Fascia
Large aponeurosis on lumbar region

Anatomy 32 (20 decks)

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