Lab Practical: Muscles Flashcards

1
Q

Occipitofrontalis

A

Action: Move scalp, elevate eyebrows
Location: Frontal bone

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2
Q

Masseter

A

Action: Elevate mandible (mastication/chewing)

Origin: Zygomatic arch
Insertion: Angle of mandible

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3
Q

Temporalis

A

Action: Elevate mandible
Location: Temporal bone

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4
Q

Buccinator

A

Action: Cheek against teeth
Location: Cheek

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5
Q

Levator labii
 superioris

A

Action: Elevate lip
Location: Near the eye to the lip

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6
Q

Orbicularis
 oculi

A

Action: Close eye (circular shape)

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7
Q

Orbicularis
 oris

A

Action: Close mouth (circular shape)

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8
Q

Zygomaticus
 major

A

Action: Elevate angle of mouth
Location: Zygomatic bone to the side of the mouth. Below zygomaticus minor

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9
Q

Zygomaticus
 minor

A

Action: Elevate lip
Location: Zygomatic bone to the side of the mouth, above zygomaticus major

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10
Q

Digastric

A

Action: Depress mandible
Location: Under the jaw

Origin: Mastoid process
Insertion: Mandible

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11
Q

Sternocleidomastoid

A

Action: Flex neck
Location: Side of the neck

Origin: Sternum and clavicle
Insertion: Mastoid process

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12
Q

Latissimus dorsi

A

Action: Extend, adduct shoulder
Nickname and Workout: Lats, rows

Origin: Spinous process (T7-L5); Sacrum; Iliac crest
Insertion: Intertubercular groove

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13
Q

External intercostals

A

Action: Elevate ribs
Location: Between ribs

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14
Q

Internal intercostals

A

Action: Depress ribs
Location: Between ribs

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15
Q

Diaphragm

A

Action: Inspiration
Location: Between the lungs and the abdominal cavity

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16
Q

Deltoid

A

Action: Abduct arm
Location: Shoulder

Nickname and Workout: Shoulders, military press
Origin: Clavicle, Scapula (spine)
Insertion: Deltoid tuberosity

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17
Q

Risorus

A

Action: Abducts the mouth
Location: Side of the mouth

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18
Q

Depressor labii inferioris

A

Action: Depresses lip
Location: Below the mouth

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19
Q

Gluteus Maximus

A

Action: Extend hip, laterally rotate thigh

Origin: Ilium, sacrum, coccyx
Insertion: Gluteal tuberosity

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20
Q

Gluteus medius

A

Action: Abduct, medially rotate thigh
Location: Side of the leg, below the tensor faciae latae

Origin: Ilium
Insertion: Greater trochanter

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21
Q

Tensor fasciae latae

A

Action: Abduct thigh
Location: Side of the leg, above the gluteus medius

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22
Q

Sartorius

A

Action: Flex hip and knee, laterally rotate thigh
Location: From the hip to the inside of the thigh

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23
Q

Biceps brachii

A

Action: Flex elbow

Origins: Supraglenoid tubercle, coracoid process
Insertion: Radial tuberosity

24
Q

Brachialis

A

Action: Flex elbow
Location: Below the biceps brachii

Insertion: Ulna

25
Triceps brachii
Action: Extend elbow Origin: Scapula, posterior humerus, Insertion: Olecranon process
26
Brachioradialis
Action: Flex elbow Location: On top of the radius Origin: Humerus Insertion: Radius, styloid process
27
Pronator teres
Action: Pronate forearm Location: Across the radius and ulna
28
Extensor digitorum
Action: Extend fingers Location: Follow to the tendons...
29
Extensor digiti minimi
Action: Extend little finger Location: Follow the tendon from the pinky to this tiny muscle
30
Extensor carpi radialis longus
Action: Extend wrist Location: Along the radius, goes above the extensor carpi radialus brevis
31
Extensor carpi radialis brevis
Action: Extend wrist Location: Along the radius, goes below the Extensor carpi radialis longus
32
Extensor carpi ulnaris
Action: Extends wrist Location: Right next to the extensor digiti minimi Origin: Lateral epicondyle, humerus Insertion: 5th metacarpal
33
Palmeris longus
Action: Flex wrist Location: Follow the main superficial tendon from the wrist back to this muscle
34
Flexor carpi radialis
Action: Flex wrist Location: On the radial side of the palmeris longus
35
Flexor carpi ulnaris
Action: Flex wrist Location: Ulner side of the palmeris longus Origin: Medial epicondyle Insertion: Pisiform, hamate
36
Flexor digitorum superficialis
Action: Flex fingers Location: Deep to the palmeris longus
37
Flexor digitorum profundus
Action: Flex fingers Location: Deep to the flexor digitorum superficialis
38
Abductor pollicis longus
Action: Abducts thumb Location: Side of the thumb, to abduct, the longer one, more toward the palm
39
Extensor pollicis brevis
Action: Extend thumb Location: Side of the thumb, the shorter one, more to the back of the hand
40
Gracilis
Action: Adduct thigh Location: Right next to the sartorius Origin: Inferior pubic ramus Insertion: Medial surface tibia
41
Pectineus
Action: Adduct thigh Location: Superior/lateral to the adductor longs (looks tiny on the model)
42
Adductor longus
Action: Adduct thigh Location: Superior/lateral to the gracilis (looks pretty big on the model)
43
Rectus femoris
Action: Extend knee Location: Goes through the patella, right in the middle of the thigh (anterior angle) Origin: Anterior inferior iliac spine Insertion: Tibial tuberisity
44
Vastus lateralis
Action: Extend knee Location: Lateral to the rectus femoris
45
Vastus medialis
Action: Extend knee Location: Medial to the rectus femoris
46
Biceps femoris
Action: Flex knee Location: Hamstrings, lateral to semitendinosus (One of two major muscles) Origin: Ischial tuberosity, femur Insertion: Head of fibula
47
Semimembranosus
Action: Flex knee Location: Deep (?) to semitendinosus. Medial side of the leg Origin: Ischial tuberosity Insertion: Medial condyle, tibia
48
Semitendinosus
Action: Flex knee Location: Hamstring area, medial to biceps femurs (One of two major muscles)
49
Gastrocnemius
Action: Plantarflex foot Location: The big calf muscle, looks like two muscles Origin: Both condyles, femur Insertion: Calcaneus
50
Soleus
Action: Plantarflex foot Location: Deep to the gastrocnemius and achilles tendon
51
Tibialis anterior
Action: Dorsiflex, invert foot Location: Lateral to the tibia, big muscle on the front Origin: Lateral tibia Insertion: Medial cuneiform
52
Fibularis brevis
Action: Plantarflex, evert foot Location: Tendon loops around the lateral malleolus. The shorter muscle. Side of the lower leg
53
Fibularis longus
Action: Plantarflex, evert foot Location: Tendon loops around the lateral malleolus. The longer muscle. Side of the lower leg
54
Extensor digitorum longus
Action: Extend toes, dorsiflex foot Location: Large muscle lateral to the tibialis anterior (follow the tendons from the toes to the muscle)
55
Extensor hallucis longus
Action: Extend big toe, dorsiflex foot Location: Muscle intermediate to tibialis anterior and extensor digitorum longus (Follow the tendon from the big toe to the muscle)