How do pairs of skeletal muscles work together?
a. both muscles contract at the same time.
b. both muscles extend at the same time.
c. while one muscle in the pair contracts, the other returns to its original length.
d. one muscle in the pair pulls on a bone, while the second muscle pulls on the
first muscle.

answer; /// i believe that the correct answer is (c); ///when the lungs expand, they fill with air from the atmosphere;

tell their parents and make sure she gets from a counselor or therapist. be supportive and be there for her. be a kind and good friend. spend time with her to make her feel like she's not alone. i'm not a professional but i really hope they stays strong.

answer: b. complete secondary assessment (detailed physical exam).

after you finished the primary assessment, you must proceed with the assessment by performing a complete detailed physical examination.

this secondary assessment includes a focused on patient’s history, vital signs and a specific and rapid examination of the entire body especially on the injuries acquired from the motor vehicle accident and the patient’s medical complaint.