The second pair of ribs or the True ribs
Yes, except that the answer would be an angle whose measure is negative. Such angles are quite useful in trigonometry.
The answer depends on what angle B is and which angle is 108. And since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
Such is called an exterior angle. A useful theorem is that an exterior angle is equal to the sum of its non adjacent interior angles.
Yes. Sometimes in mathematics, it is useful to have negative angles. You can increase or decrease an angle by 360 degrees (or 2*pi radians) without changing the characteristics of the angle. Thus, for example, an angle of 30 degrees is equivalent to an angle of -330 degrees.
90o
it marks the position of the second rib
The second pair of ribs or the True ribs
at the level of the inter-vertebral disc between T4 and T5.
Sternal refers to the sternum, which is the breast bone.
The sternal area is around the sternum (breastbone) in the center of the chest.
8 are sternal & 10 are asternal.
The xyphoid process is the inferior sternal bony landmark.
Sternal angle-manubriosternal joint-anterior angle formed by junction of manubrium and body of sternum-approximately 140 degreesignificant because:it lies just anterior to arch of aorta -marks the starting and ending of the aortic archanterior to the Corina (point of bifurcation of trachea into 2 main bronchi)It corresponds to the invertebral disc between T4 and T5 vertebraat the level of second pair of coastal cartilagemark superior boundary of inferior mediastinum
This results in intercostal and sternal recession in small children with airway obstruction.
if you double a 45 degree angle you have a perfectly perpendicular angle, a 90 degree square corner.
It makes it easier to understand which angle you are talking about.