Which of the following statements are true of the nervous regulation of respiration? (Read carefully and select all of the correct statements.)

A)The inspiration and expiration centers are in the medulla.
B)The normal breathing rhythm is regulated by the medulla and midbrain.
C)The smooth muscle of the diaphragm does not require nerve impulses to contract.
D)The inflation reflex increases tidal volume when necessary.
E)The pneumotaxic center in the pons prolongs inhalation.
F)Impulses from the cerebrum, for singing, can override the medulla, but not indefinitely.