What is external respiration?
A. the binding of oxygen to hemoglobin
B. exchange of oxygen and carbon dioxide at the tissue level
C. exchange of oxygen between the atmosphere and lungs
D. mitochondrial use of oxygen to produce energy
Answer: C. exchange of oxygen between the atmosphere and lungs
You might also like to view...
The ultrasound machine can provide details of the internal structure and density of an organ
Indicate whether the statement is true or false
Within what structures are the lateral ventricles located?
What will be an ideal response?
Which of the following would MOST likely cause Cushing syndrome?
A) Abrupt termination of steroids such as prednisone and hydrocortisone B) Administration of large amounts of methylprednisolone to an asthma patient C) An acute decrease in cortisol secretion secondary to an infection or malignancy D) Underuse of corticosteroids for illnesses such as rheumatoid arthritis and asthma
What type of chemical messenger is released from neurons to activate an adjacent cell?
A. paracrine B. neurotransmitter C. autocrine D. endocrine