Wednesday, February 19, 2014

Elizabeth T McCoy Ch 7


What is the axial skeleton? the portion of the human skeleton that consists of the spine and thorax.

What is the appendicular skeleton? The portion of the skeleton that consists of skull, pelvis, arms, and legs.

What is the dens or odontoid process? The process in the axis (the 2nd cervical vertebrae) that attaches to the atlas, so the skull can tilted and rotated.

Which vertebrae create the pivot point around which the skull can be tilted and rotated? The atlas and the axis.

What is the spinous process, where are they located, and what is their function? They are the small projections on the back of each vertebrae that serves as an attachment point for muscles of the back. The atlas is the only vertebrae that doesn’t have a spinous process.

Describe the size and angle of the spinous processes. They are robust and somewhat stubby, extending nearly at a right angle to the spine.  They are large in some areas…

What are the bones of the pelvis? ilium, pubis, and ischium.

How is McCoy’s description of the connection of the ribs to the sternum different than Malde’s? I don’t know!

Describe the parts of the sternum. Two bony plates called the manubrium and corpus.

Describe the pleural sacs and their function. A serious membrane that cause the thorax and lungs to adhere to each other with a flexible connection

What is Boyle’s Law? Air rushes to fill a place with less air pressure.

Expansion causes air to flow into the lungs; expansion is never the  effect of air entering the lungs.

Describe the lungs. The lungs themselves are made of porous, spongy material.  The right lung is composed of three separate sections, called lobes. 
                 
Describe the bronchial tree. They are the connection between the trachea and the individual lobes of the lungs.

Describe the aveolar sacs and their function. The small place where the actual exchange of blood gasses occurs.

Describe the central tendon of the diaphragm. The central point of attachment for all the muscles of the diaphragm, a strong fibrous portion of the muscle shaped like a boomerang.

How does the range of motion of the diaphragm vary between quiet breathing and deep breathing? In quiet breathing, the diaphragm is passive during exhalation?  I don’t know.

How much air is drawn into the lungs in a deep breath? 2.5 liters

 What are the four principal methods of breath management? clavicular, thoracic, abdominal, and a balanced breath.

According to McKinney (quoted here), what is the difference between breath support and breath control? Breath support is best described as the dynamic relationship between the muscles of inspiration and expiration that are used to control pressure in the air supplied to the larynx.  Support therefore is a pulmonary function.  Breath control, however, is a laryngeal function. 

What are the problems with clavicular breathing for singing? it’s just bad.

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