Musculi scaleni

The video tutorial explains the structure and function of the three paired neck muscles, focusing on the anterior, middle, and posterior scalenus muscles. It covers their origins, insertions, and roles in forming anatomical gaps. The tutorial also discusses potential clinical issues like galenus syndrome and highlights the muscles' functions in rib lifting and breathing.

Which spinal cord segments are the origin of the fibers for the neck muscles?

• C5 to C8

• C3 to C6

• C2 to C5

• C1 to C4

What is the attachment point of the anterior scalenus muscle?

• Fourth rib

• Second rib

• Third rib

• First rib

What is a potential clinical issue caused by hypertrophy of the scalenus muscles?

• Galenus syndrome

• Increased flexibility

• Improved posture

• Enhanced strength

Which anatomical gap is formed by the anterior scalenus, sternocleidomastoid, and clavicle?

• Medial scalenus gap

• Lateral scalenus gap

• Anterior scalenus gap

• Posterior scalenus gap

What is one of the primary functions of the scalenus muscles?

• Flexing the elbow

• Rotating the wrist

• Lifting the ribs

• Extending the knee