Chapter 14: Muscles Of The Trunk

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Created Mar 15, 2010
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forever.learning

 

 
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1
Which is the more superior muscle, the rhomboideus major or the rhomboideus  minor?
 
Rhomboideus minor
2
What is the action of the serratus anterior muscle?
 
abducts scapula
3
What is the action of the rhomboideus muscles?
 
adducts scapula
4
How does the serratus anterior function as an antagoinist to the rhomboideus muscles?
 
adducts and rotates shoulder
5
How does the action of the rectus abdominis differ from that of the other abdominal muscles?
 
It flexes the trunk
6
What is the physical relationship of the intercostal muscles to each other?
 
inhilation, exhilation
7
Compression of the abdominal wall occurs by what four muscles?
 
external abdominal oblique, inernal abdominal oblique, transverse abdominis, rectus abdominis
8
Extension and rotation of the vertebral column occur by what group of muscles?
 
erector spinae
9
What muscle is responsible for most of the air inhaled during relaxed breathing?
 
diaphragm 60%external intercostals 40%
10
What is the action of the intercostal muscles?
 
elevates ribs, depresses ribs
11
What muscle inserts on the centeral tendon?
 
diaphragm
12
Abduction of the scapula occurs by what muscle?
 
serratus anterior
13
The tendinous intersections are found in what muscle?
 
rectus abdominous
14
Flexion of the vertebral column occurs by what abdominal muscle?
 
rectus abdominous
15
What is the deepest abdominal muscle?
 
Transverse abdominous
16
What is the origin of the rhomboideus major muscle?
 
spines of T2-5


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