Term
| where do motor activation signals enter ganglia? |
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Definition
| through the white ramous communicans (myelinated) |
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Term
where does an impulse come from and where are the synaptic juntions for the stimulation of visceral structures of the cell wall?
Where does the post synaptic axon go? |
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Definition
it comes from the lateral horn and heads to the paraverterbral ganglia via the white ramus communicans
it exits via the grey communicans and innervates the visceral organ |
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Term
where is the lateral horn found?
what area serve what regions? |
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Definition
in the grey matter between T1 and L2
T1-T6 = head, upper limb, thorasic viscera (foregut)
T7-T11 = body wall, abdominal viscera (midgut)
T12-T2(3) = lower limb, pelvic viscera (hindgut)
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Term
where are the synaptic juntions for the stimulation of lungs and heart (T1-T5)?
Where does the post synaptic axon go?
Where will any sensation return
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Definition
it comes from the lateral horn and heads to the paraverterbral ganglia via the white ramus communicans
it exits the paraverterbral ganglia and goes straight to the organ needing innervation
Any sensation will come right back through the white ramus to the dorsal horn
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Term
where are the synaptic juntions for the stimulation of abdominopelvic organs(T5-L2)?
Where does the post synaptic axon go?
Where will any sensation return
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Definition
it comes from the lateral horn and heads to the subdiaphragmatic ganglia (far from verterbrae and shooting right through the paravertebral ganglia) via the white ramus communicans
it exits the subdiaphragmatic ganglia and makes a twisted journey along arteries until it reaches its organ (via pero-arterial plexus)
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Term
| what are the four things presynaptic sympathetic fibers can do within the sympathetic ganglia trunks |
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Definition
ascend
descend
synapse at level of entry
pass right through the paraverterbral ganglia and enter an addominopelvic splanchnic nerve |
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Term
| where can you find parasympathetic presynaptic nerve bodies? Where can you find their post synaptic ganglia? |
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Definition
C1-8 or S3-S4
In the wall of the organs they innervate |
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Term
| sensation of ANS monitored viscus? |
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Definition
senations will not always reach consciousness
usually a dull or uncomfortable felling
does not arise from touch, temp, or cutting
when a pelvic organ is distended, visceral sensation returns via parasympathetic outflow pathway (via pelvic splanchnic nerves) |
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Term
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Definition
The entire Ovum cell, including external surrounding structures (ie.. follicular cells and zona pellucida) is at one point refered to as the cumulus oophorus. |
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Term
how is a trilaminar layer formed?
what forms next?
what's this stage called? |
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Definition
by migration of some epiblast cells (likely ectoderm) below their plane between the bilaminar layer via a "primitive streak". the middle layer becomes mesoderm
a furrow is formed anteriorly and it is becoming the neural crest
this is a nerula |
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Term
| superior thoracic aperture and inferior thoraric aperture, which is dynamic, which is status. |
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Definition
| the superior doesn't move and is a portal of entry for organs and vessels, therefore static. the inferior borders the diagphragm and can expand and contract, therefore dynamic. |
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Term
| what happens when the diagphragm contacts? |
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Definition
| the thoracic cage descends and inspiration happens |
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Term
| what happens when the diaphragm relaxes? |
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Definition
| thoracic cage ascends and expiration happens |
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Term
| three muscles of chest that are not thoracic muscles |
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Definition
| serratus major anterior, pectoralis major and minor |
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Term
| arterial blood flow of thoracic wall? |
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Definition
| internal thoracic artery derived from the subclavian artery |
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Term
arterial blood flow of thoracic wall?
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Definition
| anterior thoracic vein orinated from the brachiocephalic vein |
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Term
| what is the key to the pleural cavity's control over the lungs? |
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Definition
| the negative pressure within the pleural space |
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Term
| what do pneumo- and hemothorax refer to? |
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Definition
collapsing of the lung due to the presence of air in the pleural space or the presence of blood in the space.
must be drained via the costodiaghrag |
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Term
| an "interloper muscle" that is not part of the thoracic muslce set but helps expand the rib cage |
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Definition
| pectrolais minor. can stabilize the shoulder and help expand the rib cage. this is why people bend over when they are exhausted and are trying to catch their breath. |
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