Human Anatomy-Chapter 11& 12 Skeletal Muscles

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Author:
krista.s
ID:
240702
Filename:
Human Anatomy-Chapter 11& 12 Skeletal Muscles
Updated:
2013-10-15 00:49:52
Tags:
skeletal muscles
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Description:
Chapter 11 & 12 Skeletal muscles Study guide
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  1. Name of Facial Expression
    Name:
    Origin: Maxilla and mandible
    Insertion: Lips
    Action:

    • -Orbicularis oris
    • -compress lips
  2. Name:
    Origin: Medial orbit
    Insertion: Skin around eyelids
    Origin:
    • -Orbicularis oculi
    • -Close eye
  3. Name Of Mastication
    Name:
    Origin: Temporal Fossa
    Insertion: Coronoid process of mandible
    Action:
    • -temporalis
    • -elevate mandible
  4. Name:
    Origin: Zygomatic arch
    Insertion: Lateral ramus of mandible
    Action:
    • -Masseter
    • -Elevate mandible
  5. Muscles Of The Neck:
    Name:
    Origin: Sternal head: Manubrium
    Clavicular head: Medial clavicle
    Insertion: mastoid process and superior nuchal line
    • -unilateral: turn head
    • -bilateral: flex neck and head
  6. Muscles Of Respiration:
    Name:
    Origin: Xiphoid process, costal cartilag
    es 7-12, lumbar vertebrae (anterior)
    Insertion: Central tendon
    Action:
    • -diaphragm
    • -expands thoracic cavity/inhale
  7. Name:
    Origin: Inferior border of superior rib
    Insertion: Superior border of inferior rib
    Action:
    • -external internal costals
    • -elevate ribs/active inspiration
  8. Name:
    Origin: Superior border of inferior rib
    Insertion: Inferior border of superior rib
    Action:
    • -internal intercostals
    • -active expiration
  9. Muscles Of Abdominal Wall
    Name:
    Origin: ribs 5-12
    Insertion: Linea alba, iliac crest
    Action:
    • -external abdominal oblique
    • -compress abdominal wall. Flex vertebral column & rotate trunk
  10. Name:
    Origin: Thoracolumbar fascia, inguinal ligament, iliac crest.
    Insertion: Linea alba, pubic crest, ribs/costal cartilages 8-12
    Action:
    • -internal abdominal oblique
    • -compress abdominal wall. Flex vertebral column & rotate trunk
  11. Name:
    Origin: Thoracolumnar fascia, inguinal ligament, iliac crest, ribs/costal cartilages 6-12
    Insertion: Linea alba, pubic crest
    Action:
    • -transversus abdominis
    • -compress abdominal wall. tense thoracolumbar fascia
  12. Name:
    Origin:
    Insertion: Xiphoid process, costal cartilages 5-7
    Action:
    • -Rectus abdominis
    • -Flex vertebral column. compress abdominal wall
  13. What is the name of the fibrous sleeve (arising from the Apo neuroses of the external oblique, internal oblique, and transversus abdominis) that encloses the 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

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