Lab ex. 12 skeletal muscles

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msmit458
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211009
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Lab ex. 12 skeletal muscles
Updated:
2013-04-05 17:48:50
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skeletal muscles
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lab 12
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  1. Name the anterior lower leg muscles
    • anterior Tibialis 
    • Extendor digitorum
  2. Name the posterior lower leg muscles
  3. Gastrocnemius* (belly of the calf)(femur -origin) (calcaneus-insertion)
    • fibularis longus
    • soleus (medial part of the inner leg)
  4. Name the upper antieror leg muscles (thigh)
    • Sartorius
    • gracilis
    • tensor fasciae latae
    • vastus lateralis
    • vastus medialis
    • rectus femoris*(iliac spine-origin) (tibia surface-insertion)
    • adductor longus
    • adductor magnus
  5. Name the posterior lower upper leg muscles
    • bicepts femoris*(ischial orgin) (fibula/tibia)
    • semitendinosous
    • semimembranosus
  6. Name the muscles in the butt.
    • Gluteus maximus
    • gluteus medius*(ilium-origin)(femur- insertion)
    • iliopsoas (psoas major) or
    • iliacus when combined
  7. Name the abdomen muscles
    • external oblique (superficial)
    • internal oblique (deep)
    • transverse abdominis (opposite sides of oblique)
    • rectus abdominis* (6pack)(pubic bone-origin)(xiphoid process-insertion)
  8. Name the muscles of the upper arm
    • tricept brachi (long, medial, lateral heads)
    • bicepts brachii*(scapula-origin)(radius-insertion)
    • brachialis
  9. Name the muscles of the posterior forearm
    • brachioradialis
    • extensor carpi radialis
    • extensor digitorum
    • extensor carpi ulnaris
  10. Name the muscles of the anterior forearm.
    • flexor carpi radialis
    • palmaris longus
    • flexor carpi ulnaris
    • pronator teres
  11. name the shoulder and back muscles
    • trapezius*(occipital bone-orgin)(clavicle-insertion)
    • deltoid
    • splenius capitis
    • rhomboid major
    • rhomboid minor
    • supraspinatus
    • infraspinatus
    • teres major
    • subscapularis
    • latissimus dorsi*(lumbar vertebra-origin)(humerus-insertion)
  12. Name the chest muscles
    • pectoralis major*(clavicle-origin)(humerus-insertion)
    • pectoralis minor
    • serratus anterior
    • external intercostals
  13. Name the neck muscles
    sternocleidomastoid*

    sternum and clavicle (origin) temporal bone (insertion)

    sternohyoid*(sternum manubrium-origin)(hyoid bone-insertion)

    sternal (origin) hyoid (insertion)
  14. Name the muscles of the head
    • frontalis
    • orbicularis oculi (eyes)
    • zygomaticus major
    • zygomaticus minor
    • temporalis
    • masseter
  15. What is the action of the masseter muscle.

    What is the origin and insertion of this muscle?
    The muscle is for matication

    • orgin--- zygomatic arch
    • insertion---mandible
  16. What is the action of the sternocleidomastoid muscle?

    What is the origin and insertion of this muscle?
    the muscles move the head and neck

    • origin---clavicle
    • insertion---temporal bone
  17. What is the action of the sternohyoid muscle.

    What is the origin and insertion of this muscle?
    Depresses the hyoid bone

    • orgin---clavicle
    • insertion---hyoid bone
  18. What is the action of the pectoralis major muscle.What is the origin and insertion of this muscle?
    rotation of the arm

    • origin---sternum
    • insertion---humerus
  19. What is the action of the trapezius muscle.What is the origin and insertion of this muscle?
    allows shrugging of the shoulders by moving the scapula up

    • origin---occipital bone
    • insertion---clavical
  20. What is the action of the latissimus dorsi muscle.What is the origin and insertion of this muscle?
    allows the arm to be raised laterally at the shoulder

    • origin---lumbar vertebrae
    • insertion---humerus
  21. What is the action of the rectus abdominus muscle.What is the origin and insertion of this muscle?
    compresses abdomen during childbirth and deffication.

    • origin--pubic bone
    • insertion---sternum
  22. What is the action of the bicept brachii muscle.What is the origin and insertion of this muscle?
    flexes the arm at the elbow.

    • origin---scapula
    • insertion---radius
  23. What is the action of the triceps brachii muscle.What is the origin and insertion of this muscle?
    Extends at the elbow.

    origin long---scapula

    origin medial---humerus

    origin at lateral---humerus

    insertion for all three---ulna
  24. What is the action of the gluteus maximus muscle.What is the origin and insertion of this muscle?
    extends the thigh at the knee joint.

    • origin---iliac crest
    • insertion---femur
  25. What is the action of the rectus femoris muscle.What is the origin and insertion of this muscle?
    extends leg at the knee joint.

    • origin---coxal bone
    • insertion---tibia
  26. What is the action of the biceps femoris muscle.What is the origin and insertion of this muscle?
    flexes knee at the knee joint.

    • origin---coxal bone
    • insertion---fibula
  27. What is the action of the gastrocnemius muscle.What is the origin and insertion of this muscle?
    extends the thigh.

    • origin---femur
    • insertion---calcaneus
  28. What is the action of the frontalis muscle?
    raises eyebrows and wrinkles forehead
  29. What is the action of the orbicularis oculi muscle?
    closes eyes
  30. What is the action of the zygomaticus major muscle?
    • raises the corner of the mouth 
    • (smiling)
  31. What is the action of the orbicularis oris muscle?
    closes and purses lips
  32. What is the action of the temporalis muscle?
    elevates and retracts the mandible

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