Movement of the scapulothoracic joint

Question 1

Which muscles maintain the position of the scapula?

Answer 1

Pec. Major/Minor
Lats 
serratus anterior 
rhomboid MM
levator scapulae

Question 2

What is the degree of motion of the scapula dependent on?

Answer 2

the clavicle to move along two joints:
Sternoclavicular
acromiclavicle

Question 3

What is open chain motion?

Answer 3

the proximal end is attached to body and the vista end is free
describes how limbs move relative to the body

Question 4

What is closed chain motion?

Answer 4

both proximal and distal ends are fixed

motions of the body relative to fixed outside objects

Question 5

What is concentric contraction?

Answer 5

Muscle gets gets shorter with contractions

Question 6

eccentric contraction

Answer 6

muscles get longer as they contract

Question 7

what is isometric contraction?

Answer 7

when force of muscles equals resistance

muscle length doesn’t change

Question 8

What is the agonist?

Answer 8

primary muscle moving the joint

Question 9

What is a synergist?

Answer 9

muscle assisting in movement of that joint

Question 10

What is a antagonist?

Answer 10

muscles that opposes a muscles action

Question 11

Name the sequence in raising the ark 180 degrees?

Answer 11

0-60 supraspinatus and deltoid involved in abduction
60 -120 supraspinatus contract but traps and serratus anterior increasingly are added to raise the point of the shoulder
120 -180 afteter complete contraction of traps and serratus anterior spine curves to allow final few degrees