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A&P 1 > Muscles > Flashcards

Muscles Flashcards

(55 cards)

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1
Q

Buccinator

A

Origin: Maxilla and Mandible

Insertion: orbicularis Oris

Action: compresses cheeks

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2
Q

Orbicularis Oris

A

Origin: maxilla and mandible

Insertion: lips

Action: compresses lips

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3
Q

Orbicularis oculi

A

Origin: orbit

Insertion: eyelids

Action: closes eye

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4
Q

Epicranius frontal belly

A

Origin: epicranial aponeurosis

Insertion: eyebrows and bridge of nose

Action: wrinkles forehead and raises eyebrows

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5
Q

Epicranius occipital belly

A

Origin: occipital bone

Insertion: epicranial aponeurosis

Action: tenses scalp

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6
Q

Masseter

A

Origin: zygomatic arch

Insertion: mandible

Action: elevates mandible

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7
Q

Temporalis

A

Origin: temporal line

Insertion: mandible

Action: elevates mandible

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8
Q

External intercostals

A

Origin: inferior border of each rib

Insertion: superior border of each rib

Action: elevates ribs

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9
Q

Internal intercostals

A

Origin: superior border of each rib

Insertion: inferior border of superior rib

Action: depresses ribs

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10
Q

External oblique

A

Origin: ribs 5-12

Insertion: Linea alba and iliac crest

Action: compressed abdomen, flexes vertebral
Column

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11
Q

Internal oblique

A

Origin: thoracolumbar fascia and iliac crest

Insertion: inferior ribs, lines alba, xiphoid process

Action: compresses abdomen, trunk flexion, rotate same side

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12
Q

Transversus abdominis

A

Origin: ribs 6-12, iliac crest, thoracolumbar fascia

Insertion: linea alba, pubis

Action: compresses abdomen and helps force breathing.

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13
Q

Rectus abdominis

A

Origin: superior pubis

Insertion: ribs 5-7, xiphoid process

Action: depresses ribs, flexes vertebral column, and compresses abdomen

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14
Q

Sternocleidomastoid

A

Origin: sternal end of clavicle, manubrium

Insertion: mastoid of skull

Action: flexes neck, bends head to shoulder

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15
Q

Lavatory scalpulae

A

Origin: first 4 cervical vertebrae

Insertion: vertebral border

Action: elevates scapula

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16
Q

Pectoralis minor

A

Origin: ribs 3-5

Insertion: coracoid process of scapula

Action: tilts scapula anteriorly

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17
Q

Rhomboid major

A

Origin: superior thoracic vertebrae

Insertion: vertebral border of scapula

Action: adduct scapula and downward rotation

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18
Q

Rhomboid minor

A

Origin: C7-T1

Insertion: vertebral border of scapula

Action: adduct scapula and downward rotation

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19
Q

Serratus anterior

A

Origin: anterior, superior ribs 1-8

Insertion: vertebral border of scapula

Action: protracts shoulder and rotates scapula

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20
Q

Trapezius

A

Origin: occipital bone, spinous processes of the thoracic vertebrae, and ligamentum nuchae

Insertion: clavicle, scapula

Action: elevates, retracts, depresses, rotates scapula, elevates clavicle, extends neck

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21
Q

Deltoid

A

Origin: clavicle and scapula

Insertion: humerus

Action: abduct shoulder, anterior & posterior flexion extension and rotation

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22
Q

Supraspinatus

A

Origin: supraspinous fossa of scapula

Insertion: greater tubercle of humerus

Action: abduct shoulder

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23
Q

Subscapularis

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A

Origin: subscapular fossa of the scapula

Insertion: lesser tubercle of the humerus

Action: medial rotation at the shoulder

24
Q

Teres major

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A

Origin: inferior angle of scapula

Insertion: intertubercular groove of humerus

Action: extension, medial rotation, addiction

25
Infraspinatus
Origin: infraspinous fossa of scapula Insertion: greater tubercle of humerus Action: lateral rotation at shoulder
26
Teres minor
Origin: lateral border of scapula Insertion: greater tubercle of humerus Action: lateral rotation at shoulder
27
Pectoralis major
Origin: ribs 2-6, sternum and medial clavicle Insertion: greater tubercle and intertubercular groove of humerus Action: flexion, addiction, medial rotation of shoulder
28
Latissimus dorsi
Origin: inferior thoracic and lumbar vertebrae, ribs 8-12, thoracolumbar fascia Insertion: intertubercular groove of humerus Action: extend, adduct, medial rotation of shoulder
29
Biceps brachii
Origin: coracoid process; Supraglenoid tubercle Insertion: tuberosity of radius Action: flexion of elbow
30
Brachialis
Origin: Distal surface of humerus Insertion: ulna Action: elbow flexion
31
Brachioradialis
Origin: lateral epicondyl of humerus Insertion: radius Action: elbow flexion
32
Triceps brachii
Origin: lateral head/ later humerus long head/ infraglenoid tubercle scapula. Medial head: posterior of humerus Insertion: olecranon Action: extension of elbow
33
Pronator
Origin: distal ulna Insertion: distal radius Action: pronation
34
Pronator teres
Origin: coranoid process of ulna and humerus Insertion: midlateral radius Action: pronation
35
Supinator
Origin: lateral epicondyle of humerus, radial notch of ulna Insertion: radial tuberosity Action: supination
36
Gluteus Maximus
Origin: Iliac crest, lateral ilium, sacrum coccyx, thoracolumbar fascia Insertion: femur Action: extension and lateral hip rotation
37
Gluteus medius
Origin: anterior Illiac crest Insertion: greater trochanter of femur Action: abduction and medial rotation of hip
38
Gluteus minimus
Origin: lateral Ilium Insertion: greater trochanter of femur Action: abduction and medial rotation of hip
39
Periformus
Origin: sacrum Insertion: greater trochanter of femur Action: lateral rotation and abduction of hip
40
Adductor longus
Origin: inferior ramus of pubis Insertion: Linea aspira of femur Action: adduct thigh and downward rotation
41
Adductor magnus
Origin: inferior ramus of pubis Insertion: Linea aspera and adductor tubercle of femur Action: adduct scapula and downward rotation
42
Iliposas Psoas Major
Origin: Vertebrae T12-L5 Insertion: Iliacus Action: flex hip
43
Iliacus
Origin: Ilium Insertion: femur (tendon fused with psoas major) Action: flexion of hip
44
Biceps femoris
Origin: Linea aspera of femur and ischial tuberosity Insertion: Lateral condyle of tibia and head of fibula Action: flexion of knee
45
Semimembranous
Origin: Ischial Tuberosity Insertion: medial condyle of tibia Action: flexion of the knee
46
Semitendonosus
Origin: ischial tuberosity Insertion: proximal, medial surface of tibia near gracialis Action: flexion of knee
47
Popliteus
Origin: lateral condyle of femur Insertion: tibial shaft Action: medial rotation of tibia and flexion of knee
48
Rectus femoris
Origin: Iliac spine; superior Ilium Insertion: tibial tuberosity by the patellar ligament (tibiopatellar ligament) Action: flexion at hip and extension at knee
49
Vastus intermedius
Origin: anterolateral femur and Linea aspera Insertion: tibiopatellar ligament Action: extension of knee
50
Vastus lateralis
Origin: femur and Linea aspera Insertion: tibiopatellar ligament Action: extension of knee
51
Vastus medialis
Origin: entire length of Linea aspera of femur Insertion: tibiopatellar ligament Action: extension of knee
52
Tibialis Anterior
Origin: lateral condyle Insertion: 1st metatarsal Action: flexion at ankle.
53
Gastronemicus
Origin: femoral condyles Insertion: calcaneus Action: flex at knee and plantar flexion
54
Fibularis longus
Origin: lateral tibia and proximal fibula Insertion: 1st metatarsal and medial cuneiform Action: reversion of foot and plantar flexion
55
Soleus
Origin: proximal fibula, posterior medial tibia gastroc. Insertion: calcaneus/tendon Action: plantar flexion of ankle

A&P 1 (2 decks)

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