Question

36. For the process of inhalation, the Medulla Oblongata of the brain stem tells us that we need to breathe. It sends a signal down the ____________________________ to the _______________________nerve, which tells the _____________________muscle to contract. (4 points)

37. Match the muscles to the process. (4 points)

1.Quiet breathing exhalation a. internal intercostals MMs, +acc.mm’s of abdomen

2. Speech breathing exhalation b.diaphragm, ext. intercostalMMs, interchondral

3. Quiet breathing inhalation c. diaph.,ext. intercostalMMs, interchondral, +acc of H&N

4. Speech breathing inhalation d. gravity, elastic recoil of lungs, untorquing of cartilage

Answer 1

36.For the process of inhalation, the medulla oblongata of the brain stem tells us that we need to breathe.It sends a signal down the VRG &DRG to the ventral grey horn of the spinal somatic motor neuron to the phrenic nerve, which tells the phrenic muscle to contract

37.

1. Quiet breathing exhalation ---------------------Gravity, elastic recoil of lungs, +acc.MM's of abdomen
2. Speech breathing exhalation------------------Internal intercostal MMs, +acc.MM's of abdomen
3. Quite breathing inhalation----------------------Diaphragm,External intercostal MMs, Interchondral
4. Speech breathing inhalation-------------------Diaphragm, External intercostal MMs, interchondral,+acc of H&N