Slideshow: Anterior arm
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Transcript of Slideshow: Anterior arm
![Page 1: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/1.jpg)
The Arm
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Skin
Cross-section through midshaft of humerus
![Page 3: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/3.jpg)
front of arm
![Page 4: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/4.jpg)
front of arm
back of arm
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front of arm
back of arm
MEDIAL
![Page 6: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/6.jpg)
front of arm
back of arm
MEDIAL
LATERAL
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front of arm
back of arm
MEDIAL
LATERAL
Subcutaneous Fat
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front of arm
back of arm
MEDIAL
LATERAL
Humerus
![Page 9: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/9.jpg)
front of arm
back of arm
MEDIAL
LATERAL
HumerusSeptumSeptum
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front of arm
back of arm
MEDIAL
LATERAL
Humerus
![Page 11: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/11.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Anterior or Flexor Compartment
![Page 12: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/12.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Anterior or Flexor Compartment
![Page 13: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/13.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Posterior or Extensor Compartment
Anterior or Flexor Compartment
![Page 14: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/14.jpg)
Muscles
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3 Muscles in Anterior Compartment
Biceps
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3 Muscles in Anterior Compartment
Biceps
Brachialis
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3 Muscles in Anterior Compartment
Brachialis
Biceps
Coracobrachialis
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3 Muscles in Anterior Compartment
Brachialis
Biceps
Coracobrachialis
![Page 19: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/19.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Posterior or Extensor Compartment
Anterior or Flexor Compartment
![Page 20: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/20.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Posterior or Extensor Compartment
![Page 21: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/21.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Posterior or Extensor Compartment
![Page 22: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/22.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Brachialis
Posterior or Extensor Compartment
![Page 23: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/23.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Brachialis
Posterior or Extensor Compartment
![Page 24: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/24.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Humerus
Brachialis
BicepsLong Head
Posterior or Extensor Compartment
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front of arm
back of arm
MEDIAL
LATERAL
Humerus
Brachialis
BicepsLong Head
BicepsShort Head
Posterior or Extensor Compartment
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Nerves
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All Muscles of Anterior Arm are innervated by
the
Musculocutaneous Nerve
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Lateral fibres of
Brachialisalso receives innervation
from the
Radial Nerve
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front of arm
back of arm
MEDIAL
LATERAL
Humerus
Brachialis
BicepsLong Head
BicepsShort Head
Musculocutaneous Nerve
Posterior or Extensor Compartment
![Page 30: Slideshow: Anterior arm](https://reader036.fdocuments.us/reader036/viewer/2022070603/58715b7e1a28ab8e5b8b6581/html5/thumbnails/30.jpg)
front of arm
back of arm
MEDIAL
LATERAL
Brachialis
BicepsLong Head
BicepsShort Head
Radial nerve
Humerus
Posterior or Extensor Compartment
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Summary of Muscles
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Anterior ArmBiceps Brachii
Origin Short head: tip of coracoid process of scapula; Long head: supraglenoid tubercle of scapula
Insertion Tuberosity of radius and fascia of forearm via bicipital aponeurosis
Action Supinates and flexes forearmNerve Supply Musculocutaneous nerve (C5
and C6) Blood Supply Muscular branches of brachial
artery
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Anterior ArmBrachialis
Origin Distal half of anterior surface of humerus
Insertion Coronoid process and tuberosity of ulna
Action Flexes forearm and elbow joint in all positions
Nerve Supply Musculocutaneous nerve (C5, C6) Radial Nerve (C5, C6)
Blood Supply Muscular branches of brachial artery, recurrent radial artery
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Anterior ArmCoracobrachialis
Origin Tip of coracoid process of scapula
Insertion Upper half of medial surface of humerus
Action Flexes and adducts armNerve Supply Musculocutaneous nerve (C5,
C6) Blood Supply Muscular branches of brachial
artery