Rhomboideus

Question 1

Both rhomboids lie deep to ____

Answer 1

Traps

Question 2

Which rhomboid is more sup.?

Answer 2

Rhomboid minor

Question 3

What are the actions of the rhomboids?

Answer 3

Together:
elevate medial border of scapula
retract + rotate scapula (depress glenoid fossa)

Question 4

What is the same for both rhomboids?
What is different between them?

Answer 4

Innervation, blood supply, action
Origin + insertion

Question 5

What is the origin of Rhomboid Minor?

Answer 5

Lower part of ligamentum nuchae
SPs of C7 + T1

Question 6

What is the insertion of Rhomboid Minor?

Answer 6

Medial border of ROSOS

Question 7

What is the innervation of the rhomboids?

Answer 7

Dorsal scapular nerve (C4,5)

Question 8

What is the blood supply of the rhomboids? What is this the same as?

Answer 8

Deep branch of transverse cervical A.
Levator scapulae

Question 9

What is the origin of Rhomboid Major?

Answer 9

SPs of T2-5

Question 10

What is the insertion of Rhomboid Major?

Answer 10

Med. border of scapula btwn ROS + inf. Angle

Question 11

R. Major forms the floor of this.
What other muscles form this structure?

Answer 11

Triangle of Auscultation
Intersecting borders of lats, traps, + med. border of scapula

Question 12

What is the importance of the Triangle of Auscultation

Answer 12

Thin tissue covering ribs = sounds of thorax audible