Term
Match the troracic shape to the stage of development.
1. infant a. square
2. child b. rectangle
3. adult c. triangle |
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Definition
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Term
| Bucket handle motion of the upper ribs increase thoracis volume by increasing anteroposterior and transverse diameter. |
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Definition
| False. The upper ribs move in a pump handle motion that increases the thoracic diameter anteroposteriorly. |
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Term
The role of the diaphragm in inspiration
a. is responsible for 2/3 to 3/4 of the tidal volume in quiet breathing.
b. enlarges the thoracic cavity vertically and transveresly
c. can be weakened by a spinal lesion at C6
d. A & C
e. A & B |
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Definition
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Term
| The diaphragm is higher on the right side because of the stomach. |
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Definition
| False. It is higher on the right due to the liver. |
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Term
Anteroposterior and transverse enlargement of the thoracic cavity:
a. are caused by the bucket handle motion of the upper ribs.
b. are mutually exclusive in that the upper ribs move AP and lower move transversely.
c. occur after vertical enlargement
d. none of the above |
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Definition
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Term
Accessory muscles of respiration are:
a. SCM, tapezius and serratus posterior,
b. pec major, erector spinea, omohyoid
c. scalenes, pec minor, SCM
d. trapezius, erector spinae, subclavious |
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Definition
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Term
| An incomplete lesion of the spinal cord at C4 can cause weakness or paralysis of only side of the diaphragm. |
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Definition
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Term
| The _______ muscles will become visually prominate in a patient that is dyspneic |
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Definition
| SCM. it is the most important accessory muscle of inspiration. |
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Term
| What three muscles are involved in transverse enlargement of the thoracic cage? |
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Definition
1) diaphragm
2) external intercostals
3)intercartilagenous portion of the internal intercostals |
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Term
| Quiet expiration is a passive process that is the result of the relaxation of the diaphragm and intercostals. |
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Definition
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Term
| Muscles of forced expirations are ______, _________, and _______. |
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Definition
| abdominals, internal intercostals, and other trunk/thoracic stabilizers. |
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Term
| The increase in _________ causes air to be quickly expelled during a cough and is caused by the contraction of ______muscles. |
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Definition
| intrathoracic pressure by the abdominal muscles |
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Term
In forced respiration the abdominal muscles will do all of the below except.
a. increase intrathoracic pressure
b. force the diaphragm back to it's resting position.
c. exert a compressive force on the thorax if the spine and pelvis are fixed
d. all of the above are true |
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Definition
| c. it exerts a compressive force on the abdomen when the thorax and pelvis are fixed |
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Term
| The internal intercostals are only involved in forceful expiration. |
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Definition
| False. The interosseous portion depresses the ribs in forced expiration. The intercartilaginous portion is used to move the ribs in quiet inspiration. |
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