Answer: However, during exercise, many other muscles become important to respiration. During inspiration, the external intercostals raise the lower ribs up and out, increasing the lateral and anteroposterior dimensions of the thorax.
The answer is A. Transition
Divorce and changing schools is also considered a transitions.
An enviromental change could trigger a drug abuse for teens because it forced them to adapt (socialize with friends, etc)
<span>The axial skeleton is composed of all the bones that make up the axis of the body, namely the 22 bones of the skull, all the vertebrae. The axial skeleton also includes the rib cage consisting of the sternum forward and ribs laterally.
The appendicular skeleton designates the 206 bones that comprise the human body, the 126 that make up the upper and lower limbs and bone belts (shoulder bone or shoulder girdle and hip bones or pelvic girdle). It consists of the clavicles, shoulder blades, humerus, radius, ulna, all the carpal bones (hands and wrists), pelvic bones, femur, tibia, fibula and all bones ankle and foot. All these bones are bilateral (the one on the left and <span>right).</span></span>
I believe the answer is A