Can someone please help me with this bio question.

[escesc]

A stroke that destroyed the respiratory center of the medulla would be expected to lead to:

A. Apneustic breathing
B. Ataxic breathing
C. Immediate cessation of breathing
D. Rapid breathing (hyperpnea)
E. None of the above, since breathing would remain normal

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[futIDdoc]

the correct answer is F: Do your own homework. Mod thread shut down in 3...2....1

 

[Guyton Killah]

• acute respiratory failure
• chronic respiratory failure
• Type I respiratory failure
• Type II repiratory failure
• Central respiratory failure
• Peripheral respiratory failure
  

Si/Sx!!!

 

[phospho]

I'll bite:

the answer is either A or B. Personally, I think it's B. For example, PICA (posterior cerebellar artery syndrome) is typified by vertigo, ipsilateral hemiataxia, dysarthria, ptosis and miosis.

http://www.tchain.com/otoneurology/disorders/central/brainstem strokes.htm

On the other hand, it could be A because the main cause of apneustic respirations is damage to the pons or upper medulla caused by strokes or trauma.

http://en.wikipedia.org/wiki/Apneustic_respirations

it's a pretty crappy question if you ask me...

 

[87138]

I'll bite:

the answer is either A or B. Personally, I think it's B. For example, PICA (posterior cerebellar artery syndrome) is typified by vertigo, ipsilateral hemiataxia, dysarthria, ptosis and miosis.

http://www.tchain.com/otoneurology/disorders/central/brainstem strokes.htm

On the other hand, it could be A because the main cause of apneustic respirations is damage to the pons or upper medulla caused by strokes or trauma.

http://en.wikipedia.org/wiki/Apneustic_respirations

it's a pretty crappy question if you ask me...

Definitely shouldn't be A since the Apneustic Center is part of the Respiratory Center. I believe you'd need a vagotomy and a very careful transection rostral to the Apneustic Center to cause apneustic breathing (in other words, the apneustic center must still be in tact for it to cause apneustic breathing). Obliteration of the entire respiratory center negates this answer.

You'll get respiratory failure, but the "immediate cessation" is something I'm not sure about. I'd be more inclined to go with a less absolute answer, like B.

 

[Guyton Killah]

• acute respiratory failure
• chronic respiratory failure
• Type I respiratory failure
• Type II repiratory failure
• Central respiratory failure
• Peripheral respiratory failure
  

Si/Sx!!!

Respiratory arrest, cessation of breathing (c) represent a primary cause of death in the first few days after a stroke .
Apneustic breathing, deep gasping inspirations with pauses, (A) is due to damage of the pons or upper medulla caused by strokes or trauma
Ataxic respiration , irregular pauses and increasing periods of apnea,(B) is also caused by damage to the medulla oblongata due to strokes or trauma.

 

[Guyton Killah]

???

 

[cpants]

I'll bite:

the answer is either A or B. Personally, I think it's B. For example, PICA (posterior cerebellar artery syndrome) is typified by vertigo, ipsilateral hemiataxia, dysarthria, ptosis and miosis.

http://www.tchain.com/otoneurology/disorders/central/brainstem strokes.htm

On the other hand, it could be A because the main cause of apneustic respirations is damage to the pons or upper medulla caused by strokes or trauma.

http://en.wikipedia.org/wiki/Apneustic_respirations

it's a pretty crappy question if you ask me...

I believe that ataxia in a PICA stroke refers to ipsilateral motor ataxia due to loss of cerebellum, not respiratory ataxia. I'm going with C. With complete destruction of the respiratory center, I don't think you can breath at all.