Bones of the Shoulder
This S-shaped bone articulates with the sternum and scapula.
What is the clavicle?
This movement of the shoulder joint brings the arm forward and upward.
What is Flexion?
This muscle is part of the rotator cuff and initiates abduction of the humerus.
What is supraspinatus?
This movement of the scapula involves moving it upward.
What is elevation?
This protective layer covers the spinal cord and is the outermost meninge.
What is the Dura Mater?
This triangular bone provides attachment points for muscles and has a spine.
What is the scapula?
This movement involves moving the arm away from the side of the body.
What is abduction?
This muscle is a powerful adductor of the humerus and passes from the trunk to the humerus.
What is pectoralis major?
This movement of the scapula involves moving it forward around the trunk.
What is protraction?
The space between the arachnoid and pia mater filled with cerebrospinal fluid is called this.
What is the Sub Arachnoid Space?
This bone articulates with the scapula at the glenohumeral joint.
What is the humerus?
This structure permits movement at the shoulder joint but does not hold the bones together.
What is the joint capsule?
This muscle surrounds the shoulder joint and is responsible for flexion, extension, and abduction.
What is the deltoid?
This muscle helps in protraction and upward rotation of the scapula.
What is serratus anterior?
These roots of the spinal nerves are responsible for sensory input.
What are Dorsal Roots?
The glenoid fossa is a part of this bone.
What is the scapula?
This type of rotation moves the front of the arm towards the body.
What is internal rotation?
These muscles produce external rotation of the humerus and are part of the rotator cuff.
What are infraspinatus and teres minor?
This movement is the opposite of elevation.
What is depression?
These roots of the spinal nerves are responsible for motor output.
What are ventral roots?
The acromion is a projection on this bone.
What is the scapula?
This type of rotation moves the front of the arm away from the body.
What is external rotation?
This muscle produces internal rotation of the humerus and is located on the anterior aspect of the scapula.
What is subscapularis?
Sharing a name with a geometric figure this muscle on the back helps retract the scapula.
What is the trapezius?
This structure is formed by a leash of lumbar and sacral nerve roots below the end of the spinal cord.
What is the Cauda Equina?