An 18-month-old boy presents with his father for a cough and difficulty breathing. the father states that the child has had nasal congestion and coryza for the last two days. on exam, he has a barking cough, inspiratory stridor, and a prolonged inspiratory phase. which of the following would you expect to see on radiographic evaluation
a. edema of the epiglottis
b. intraluminal membranes of the tracheal wall
c. subglottic narrowing
d. thickening of the retropharyngeal space

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

It is just as important to develop our as it is to develop our bodies.

Which field of study contributes ideas and concepts to biomechanics?