Anatomy ch. 11 and 12

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Anatomy ch. 11 and 12
2013-10-24 19:21:39
anatomy skeletal muscles

exam 2 chapter 11 and 12
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  1. Origin: Maxilla and mandible.

    Insertion: lips

    Action: Compress (purse) lips
    Name: Orbicularis oris
  2. Origin: Medial orbit

    Insertion: Skin around eyelids

    Action: Close eye, -blink, wink, squint
    Name: Orbicularis Oculi
  3. Origin: Temporal fossa

    Insertion: Coronoid process of mandible

    Action: Elevate mandible
    Name: Temporalis
  4. Origin: zygomatic arch 

    Insertion: Lateral ramus of mandible 

    Action: elevate mandible
    Name: masseter
  5. Origin: Sternal head: manubrium
    clavicular Head: Medial clavicle 

    Insertion: Mastoid process and superior nuchal line 

    Action: unilateral: Turn head
    Bilatera: flex neck and Head
    Name: Sternocliedomastoid
  6. Origin: xiphoid process, costal cartilages 7- 12, lumbar vertebrae (anterior)

    Insertion: central tendon

    Action : expands thoracic cavity/ inhale
    Name: Diaphragm
  7. Origin: inferior border of superior rib

    Insertion: superior border of inferior rib 

    action: Interchondral: elevate ribs/ active inspiration
    Name: external intercostals
  8. origin: spuperior border of inferior rib

    Insertion: inferior border of superior rib 

    Action: interosseous: depress ribs/ active expiration
    Name: internal intercostals
  9. Origin: ribs 5-12

    insertion: linea alba, iliac crest

    action: compress abdominal wall, flex vertebral column and rotate trunk. (opposite side)
    Name: External abdominal oblique
  10. Origin: thoracolumbar fascia, inguinal ligament, iliac crest

    insertion: linea alba, pubic crest, ribs/ costal cartilages 8-12 

    Action: compress abdominal wall flex vertebral column and rotate trunk. (same side)
    Internal abdominal oblique
  11. origin: thoracolumbar fascia, inguinal ligament, iliac crest, ribs/costal cartilages 6-12 

    insertion: linea alba, pubic crest 

    action: compress abdominal wall - tense thoracolumbar fascia.
    Trnasversus abdominis
  12. Origin: superior pubis

    insertion: xiphoid process, costal cartilages 5-7

    action: flex vertebral column, - compress abdominal wall
    name: rectus abdominis
  13. what is the name of the fibrous sleeve (arising from the aponeuroses of the external oblique, internal oblique, and transvesus abdominis) that enclosesthe rectus abdominis muscle?
    rectus sheath
  14. what is the name of the longitudinal collagenous line between the left and right rectus abdominis muscles where the above fibrous sleeve connects along the midline?
    Linea alba
  15. Origin: iliac crest, iliolumbar ligament

    insertion: 12th rib, transverse processes of lumbar vertebrae

    action: unilateral: laterally flex spine 
    bilateral: extend vertebaral column - fix floating ribs during forced exhalation
    name: quadratus lumborum
  16. origin: anterior part of ribs 1- 8/9

    insertion: anterior vertebral border of scapula 

    Action: protraction of scapula
    name: serratus anterior
  17. origin: anteror part of ribs 2/3-5

    insertion: coracoid process of scapula 

    action: protracts and depress scapula
    name: pectoralis minor
  18. Origin: external occipital protuberance to T 12 (nuchal ligament and all spinous processes from C7-T12)

    insertion: acromion, acromial end of clavicle, spine of scapula. 

    action: superior fibers: elevate scapula
    middle fibers: retract scapula 
    inferior fibers: depress scapula
    Name: trapezius
  19. Origin: transverse processes of cervical vertebrae (C1-C4)

    Insertion: superior vertebral border of scapula

    action: elevates scapula
    Levator Scapulae
  20. Origin: Spinous processes of C7- T1

    Insertion: vertebral border of scapula

    Action: adducts scapula -rotates glenoid inferiorly.
    Name: Rhomboid minor
  21. Origin: spinous processes of T2- T5

    Insertion: Vertebral border of scapula 

    Action: adducts scapula rotates glenoid inferiorly
    Rhomboid Major
  22. Origin: Clavicular head: medial clavicle 
    Sternocostal head: Body of sternum, costal cartilages 2-6, aponeurosis of external oblique. 

    insertion: crest of greater tubercle

    Action: Flex, adduct, and medially rotate humerus
    -Draw shoulder anteriorly and inferiorly (protract and depress)
    Name: Pectoralis Major
  23. Origin: coracoid process of scapula 

    insertion: medial humerus (middle 1/3)

    Action: Flex and adduct humerus
    Name Coraco brachialis
  24. Origin: Thoracolumbar fascia (spinous processes of lumbar and lower thoracic vertebrae, iliac crest, ribs 8-12)

    insertion: intertubercular groove of humerus

    action: extend, adduct and medially rotate humerus. 
    -retracts shoulder
    Name: latissimus dorsi
  25. origin: inferior angle of scapula 

    insertion: crest of lesser tubercle 

    action: extend and medially rotate humerus. -adduct humerus
    name: teres major
  26. origin: subscapular fossa of scapula 

    insertion: lesser tubercle of humerus 

    action: medially rotate humerus
    Name: Subscapularis
  27. Origin: infraspinous fossa of scapula 

    insertion: greater tubercle of humerus 

    action: laterally rotate humerus
    Name: infraspinatus
  28. origin: lateral border of scapula 

    insertion: greater tubercle of humerus

    action: laterally rotate humerus - adduct humerus
    Teres Minor
  29. Origin: supraspinous fossa of scapula 

    insertion: greater tubercle of humerus

    action: abduction humerus laterally rotate humerus
    Name: supraspinatus
  30. What 4 muscles form the rotator cuff (merging tendons with the glenohumeral joing capsule)?
    • -Subscapularis
    • -Teres minor
    • -Infraspnatus 
    • -Deltoid
  31. Origin: Acromion, acrominal end of clavicle, spine of scapula 

    Insertion: Deltoid tuberosity (named for muscle)

    action: whole abduct humerus
    anterior: flex and medially rotate humerus 
    posterior: extend and laterally rotate humerus
    Name: Deltoid
  32. Origin: short head: coracoid process of sapula
    long head: supraglenoid tubercle of scapula

    insertion: radial tuberosity, bicipital aponeurosis 

    action: Flex and supinate antebrachium
    Name: Biceps brachii
  33. Origin: Distal, anterior humerus 

    Insertion: Ulnar tuberosity (coronoid process)

    action: Flex antebrachium
    Name: Brachialis
  34. origin: lateral supracondylar ridege of humerus

    insertion: distolateral radius (styloid process)

    action: flex antebrachium
    Name: brachio radialis
  35. Origin: long head: infraglenoid tubercle of scapula
    lateral head: posterior humerus, superior to radial groove. 
    medial head: posterior humerus, inferior to radial groove

    insertion: olecranon process of ulna

    action: extend atebrachium
    long head: stedies abducted humerus
    Name: Triceps brachii
  36. origin: lateral epicondyle of humerus, crest of ulna. 

    insertion: anterolateral radius (distal to radial tuberosity)

    action: supinate antebrachium
    -lateral rotation of radius at radioulnar joint
    Name: Supinator
  37. Origin: Medial epicondyle of humerus, coronoid process of ulna.

    insertion: Mid- lateral radius 

    action: Pronate antebracium
    -medial rotation of radius at radio/ulnar 
    -weakly flex antebrachium at elbow joint
    Name: Pronator Teres
  38. Origin: Distal shaft of ulna

    insertion: Distal shaft of radius 

    Action: pronate antebrachium medial rotation of radius at radioulnar joing.
    Name: pronator quadratus
  39. Origin: Medial epicondyle of humerus, interosseous membrane, anterior surfaces of proximal radius and ulna. 

    insertion: carpals, metacarpals, phalanges

    action: flex wrist and digits
    Name: Flexor group
  40. Origin: lateral epicondyle of humerus, interosseous membrane, posterior surfaces of proximal radius and ulna. 

    Insertion: carpals, metacarpals, phalanges

    action: extend wrist and digits
    Extensor group
  41. What do we call the wide bands of thickened fascia on the anterior and posterior aspects of the wrist and ankle which retain tendons (preventing bow- stringing)?
    • -Flexor retinaculum
    • -Extensor retinaculum
  42. What condition results from the compression of the median nerve under the flexor retinacula of the wrist, potentially resulting in pain, numbness, tingling, and weakness of the thumb muscles?
    Name: Carpal Tunnel Syndrome
  43. Origin: iliac fossa

    insertion: lesser trochanter of femur

    action: flex hip (femur)
    Name: iliacus
  44. Origin: trnasverse processes of L1-L5

    Insertion: Lesser trochanter of femur

    action: flex hip (femur)
    Psoas Major
  45. The iliacus and psoas major muscles unite as they pass under the inguinal ligament. What name is used to refer to this single muscle (hip flexor) found at the superior aspect of the anterior thigh?
  46. origin: anterior superior iliac spine 

    insertion: medial to tibial tuberosity

    action: flex hip (femur) Flex knee (tibia)
  47. Origin: Anterior iliac crest 

    insertion: Lateral tibial epicondyle via iliotibial tract 

    action: abduct femur
    Tensor fasciae latae
  48. Origin: iliac crest , dorsal sacrum and coccyx, thoracolumbar fascia, lateral ilium 

    insertion: gluteal tuberosity (named for muscle) iliotibial tract 

    action: extend and laterally rotate femur
    Gluteus Maximus
  49. Origin: superolateral ilium 

    insertion: greater trochanter (lateral)

    Action: abduct and medially rotate femur
    gluteus medius
  50. Origin: inferolateral ilium 

    insertion: greater trochanter (lateral)

    action: abduct and medially rotate femur
    Gluteus minimus
  51. Origin: superior ramus of pubis 

    insertion: pectineal line (named for muscle) of femur

    action: abduct, flex and laterally rotate femur
  52. Origin: body and inferior ramus of pubis

    insertion: proximal linea aspera

    action: adduct, flex, and laterally rotate femur
    adductor brevis
  53. Origin: pubis (below crest) 

    insertion: mid linea aspera

    action: adduct, flex and laterally rotate femur
    Adductor longus
  54. origin: inferior ramus of pubis, ramus of ischium, ischial tuberosity

    insertion: adductor head: linea aspera 
    hamstring head: adductor tubercle 

    action: adduct femur 
    hamstring head: extend femur
    adductor magnus
  55. origin: inferior ramus of pubis 

    insertion: medial to tibial tuberosity 

    action: adduct, flex, and medially rotate femur
  56. Origin: anteror inferior iliac spin, groove superior to acetabulum 

    insertion: tibial tuberosity 

    action: extend knee (tibia)
    Rectus femoris
  57. Origin: greater trochanter, linea aspera 

    insertion: tibial tuberosity 

    action: extend knee (tibia)
    Vastus lateralis
  58. Origin: anterolateral femur, linea aspera 

    insertion: tibial tuberosity 

    action: extend knee (tibia)
    Vastus intermedius
  59. Origin: medial femur, linea aspera 

    insertion: tibial tuberosity 

    action: extend knee (tibia)
    Vastus medialis
  60. Origin: long head: Ischial tuberosity 
    short head: distal linea aspera

    insertion: fibular head

    action: extend and laterally rotate femur
    Biceps femoris
  61. origin: Iscial tuberosity 

    insertion: medial to tibial tuberosity 

    action: extend and medially rotate femur
  62. Origin: Ischial tuberosity 

    Insertion: Posterior to medial tibial condyle 

    action: extend and medially rotate femur
  63. Origin: lateral epicondyle and surface of tibai, interossesus membrane 

    insertion: medial cuneiform and base of 1st metatarsal (medial and inferior portions)

    action: dorsiflex and invert foot
    Tibialis anterior
  64. Origin: Head and proximal shaft of fibula 

    insertion: medial cuniform and base of 1st metatarsal (inferior portion) 

    Action: Plantar flex and evert foot
    Fibularis longus
  65. Origin: Adjacent to femoral condyles 

    Insertion: Calcaneus via tendo calcaneus 

    action: Plantar flex foot
  66. Origin: soleal line (named for muscle) on posterior tibia, posterior fibula

    insertion: calcaneus via tendo calcaneus 

    action: plantar flex foot
  67. Deep fascia separates the limbs into compartments. What happens if trauma results in bleeding (and/ or fluid buidup) into the compartment? Give bothe the general term for blood starvation and the specific term associated with compression fo nerves vessels, and muscles in limb injuries as a result of swelling.
    Blood starvation: ischemia 

    Compression injury: compartment syndrome