How does your body adapt surface area-to-volume ratios to help the exchange of gasses?

Why is an internal location for gas exchange tissuesadvantageous for terrestrial animals?

The opening marked by the black arrow connects which of the following: Choose from the following: (A) vestibule to nasal cavity (B) nasopharynx / oropharynx (C) nasal cavity / nasopharynx (D) oropharynx / laryngopharynx (E) nasal cavity / oral cavity

Sometimes when you talk and eat at the same time, you can start the "peeking reflex" that starts when foreign objects reach the larynx (larynx). The food can enter the larynx because ... a) ... the pharynx muscles relax. b) ... epiglottis is not closed. c) ... the upper esophageal sphincter relaxes. d) ... the palate moves downwards.

Which organ system removes carbon dioxide from the bloodstream?

In the alveoli Multiple Choice   a)no exchange with the blood occurs.   b) oxygen diffuses out of the blood while carbon dioxide diffuses into the blood.   c) oxygen diffuses into the blood while carbon dioxide diffuses out of the blood.   d) both oxygen and carbon dioxide diffuse into the blood.   e) both oxygen and carbon dioxide diffuse out of the blood.

The pharynx functions as a(n)______; whereas larynx functions as a(n)____________: a. Common passageway for air & food; passageway for food only b. Passageway for air only; common passageway for air & food c. Common passageway for air & food; passageway for air only d. Passageway for food only; common passageway for air & food

All of the statements are true except A)Decreasing levels of oxygen in the blood are detected by chemoreceptors in the kidney. B)As a person's activity level increases, the level of CO2 in the blood increases and stimulates faster breathing. C)Chemoreceptors involved in the control of breathing are located in the brainstem and the carotid and aortic bodies. D)Breathing is controlled by both voluntary and involuntary mechanisms.

Trace the path air takes in flowing from the glottis to the blood air barrier.

Your partner is ventilating you non-intubated, 1 year old at a rate of 60 times per minute. Which of the following is most likely to occur? A) Gastric distension B) Respiratory alkalosis C) APpropriate ventilations D) Hyperventilation syndrome