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>> A&P > Muscles - Origin & Insertion > Flashcards

Muscles - Origin & Insertion Flashcards

1
Q

epicranius frontal belly

A

origin: epicranial aponeurosis
insertion: skin of eyebrows and root of nose

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2
Q

epicranius occipital belly

A

origin: occipital and temporal bones
insertion: epicranial aponeurosis

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3
Q

zygomaticus major & minor

A

origin: zygomatic bone
insertion: skin and muscle at corner of mouth

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4
Q

masseter

A

origin: zygomatic arch and zygomatic bone
insertion: angle of ramus and mandible

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5
Q

temporalis

A

origin: temporal fossa
insertion: coronoid process of mandible

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6
Q

sternocleidomastoid

A

origin: manubrium of sternum and medial portion of clavicle
insertion: mastoid process of temporal bone and superior nuchal line of occipital bone

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7
Q

deltoid

A

origin: lateral 1/3 of clavicle; acromion and spine of scapula
insertion: deltoid tuberosity of humerus

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8
Q

pectoralis major

A

origin: clavicle, sternum, cartilage of ribs 1-6 (or 7), and aponeurosis of external oblique muscle
insertion: fibers converge to insert by short tendon into intertubercular sulcus of humerus

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9
Q

pectoralis minor

A

origin: anterior surface of ribs 3-5, near their costal cartilages
insertion: coracoid process of scapula

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10
Q

serratus anterior

A

origin: lateral aspect of ribs 1-8 (or 9)
insertion: vertebral border of anterior surface of scapula

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11
Q

external intercostals

A

origin: inferior border of rib above
insertion: superior border of rib below

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12
Q

internal intercostals

A

origin: superior border of rib below
insertion: inferior border of rib above

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13
Q

rectus abdominis

A

origin: pubic crest and symphysis
insertion: xiphoid process and costal cartilages of ribs 5-7

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14
Q

trapezius

A

origin: occipital bone; ligamentum nuchae; spines of C7 and all thoracic vertebrae
insertion: acromion and spinous process of scapula; lateral third of clavicle

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15
Q

latissimus dorsi

A

origin: indirect attachment to spinous processes of lower six thoracic vertebrae, lumbar vertebrae, last three to four ribs, & iliac crest
insertion: floor of intertubercular sulcus of humerus

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16
Q

teres major

A

origin: posterior surface at inferior angle of scapula
insertion: intertubercular sulcus of humerus

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17
Q

teres minor

A

origin: lateral margin of posterior scapula
insertion: greater tubercle of humerus

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18
Q

supraspinatus

A

origin: supraspinous fossa of scapula
insertion: greater tubercle of humerus

19
Q

infraspinatus

A

origin: infraspinous fossa of scapula
insertion: greater tubercle of humerus

20
Q

subscapularis

A

origin: subscapular fossa
insertion: lesser tubercle of humerus

21
Q

rhomboid minor & major

A

origin: spinous processes of C7 and T1-T5
insertion: medial border of scapula

22
Q

biceps brachii long head

A

origin: supraglenoid tubercle and lip of glenoid cavity; tendon of long head runs in intertubercular sulcus and within capsule of shoulder joint
insertion: radial tuberosity

23
Q

biceps brachii short head

A

origin: coracoid process
insertion: radial tuberosity

24
Q

brachialis

A

origin: distal portion of anterior humerus
insertion: coronoid process of ulna

25
Q

brachioradialis

A

origin: lateral ridge at distal end of humerus
insertion: base of radial styloid process

26
Q

triceps brachii lateral head

A

origin: posterior humerus
insertion: olecranon of ulna

27
Q

triceps brachii medial head

A

origin: distal radial groove on posterior humerus
insertion: olecranon of ulna

28
Q

triceps brachii long head

A

origin: inferior margin of glenoid cavity
insertion: olecranon of ulna

29
Q

iliopsoas - iliacus

A

origin: iliac fossa and crest, lateral sacrum
insertion: on and just below lesser trochanter of femur

30
Q

iliopsoas - psoas major

A

origin: transverse processes, bodies, and discs of T12 and lumbar vertebrae
insertion: on and just below lesser trochanter of femur

31
Q

sartorius

A

origin: anterior superior iliac spine
insertion: by an aponeurosis into medial aspect of proximal tibia

32
Q

gracilis

A

origin: inferior ramus and body of pubis
insertion: medial surface of tibia just inferior to medial condyle

33
Q

gluteus maximus

A

origin: dorsal ilium, sacrum, and coccyx
insertion: gluteal tuberosity of femur and iliotibial tract

34
Q

tensor fasciae latae

A

origin: anterior aspect of iliac crest and anterior superior iliac spine
insertion: iliotibial tract

35
Q

adductor magnus

A

origin: ischial and pubic rami and ischial tuberosity
insertion: linea aspera and adductor tubercle of femur

36
Q

quadriceps group: rectus femoris

A

origin: anterior inferior iliac spine and superior margin of acetabulum
insertion: tibial tuberosity and patella

37
Q

biceps femoris long head

A

origin: ischial tuberosity
insertion: tendon passes laterally to insert into head of fibula and lateral condyle of tibia

38
Q

biceps femoris short head

A

origin: linea aspera and distal femur
insertion: tendon passes laterally to insert into head of fibula and lateral condyle of tibia

39
Q

semitendinosus

A

origin: ischial tuberosity
insertion: medial aspect of upper tibial shaft

40
Q

semimembranosus

A

origin: ischial tuberosity
insertion: medial condyle of tibia; lateral condyle of femur

41
Q

gastrocnemius

A

origin: by two heads from medial and lateral condyles of femur
insertion: calcaneus via calcaneal tendon

42
Q

soleus

A

origin: proximal portion of tibia and fibular; interosseous membrane
insertion: calcaneus via calcaneal tendon

43
Q

tibialis anterior

A

origin: lateral condyle and upper 2/3 of tibia; interosseous membrane
insertion: by tendon into inferior surface of first cuneiform and metatarsal I

44
Q

tibialis posterior

A

origin: superior portion of tibia and fibula and interosseous membrane
insertion: tendon passes obliquely behind medial malleolus and under arch of foot; inserts into several tarsals and metatarsals II-IV

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