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Mrt 249
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What structures make up the zygapophyseal joint
Articular surfaces (processes) of adjacent vertebrae
What structures make up the intervertebral foramen
Intervertebral notches of adjacent vertebrae
What emerges from the intervetebral foramen
Spinal nerves & vessels
At what level do the intervertebral discs begin
C2/C3-L5/S1
Which vertebrae have alternate names
C1 =atlas
C2=axis
C7 = vertebral prominens
What is the largest blood vessel in the neck
Internal jugular vein ( commonly right is the largest of the two)
Which salivary gland is closely related to the ramus of the mandible
Parotid
At what level does the common carotid artery bifurcate
C4
Which vessel passes through the transverse foramen of the upper six cervical vertebrae
Vertebral artery
What structures are directly lateral to the trachea at the level of C6
Thyroid glands
At what level of C4 which vessel is the most lateral
External jugular vein
At what level does the larynx end
C6
Which two vessels form the superior vena cava
Right and left brachiocephalic
The sternal angle corresponds to which vertebral level
T4-5
List the structures that form the thoracic inlet
1st thoracic vertebra
1st pair of ribs
Cartilage
Manubrium
List the structures that form the thoracic outlet
12th thoracic vertebra
12th rib
Costal margins
Xiphoid process
At what level are the sternoclavicular joints found
T2-3
Where are the costophrenic angles (recesses) located
Lateral angle at the base of the lungs and ribs
What is the area of bifurcation of the right and left main stem bronchi called and at what level of of the thorax does it correspond to
Carnia
T4-5 ( sternal angle)
Which main stem bronchus is the largest and most vertical
Right
What part of the lung is seen on the first axail section of the chest
Apex
Which structure separates the thoracic cavity from the abdominal cavity
Diaphragm
What are the crurae of the diaphram
Two tendons of the diaphragm that attach the diaphragm the diaphragm to the lumbar spine
What structures pass through the three openings in the diaphram
Aortic hiatus-aorta,azygous vein & thoracic duct
Caval hiatus - inferior vena cava & right phrenic nerve
Esophageal hiatus -esophagus and vagus nerve
In which part of the mediastinum is the thymus found
Superior and anterior portion
Which chamber of the heart has the thickest myocardium
Left ventricle
In viewing a CT scan of the entire chest starting from the apex of the lungs which major pulmonary vessel would you see first
Pulmonary A
Which chamber of the heart is directly posterior to the body of the sternum
Right ventricle
State the three vessels arising off the arch of the aorta from antrior to posterior
Brachiocephalic
Left common cartid
Left subclavian
Which chamber of the heart is the most posterior
Left atrium
Which chamber of the heart does the pulmonary artery arise
right ventricle
Which chamber of the heart is just anterior to the esphagus
Left atrium
What is the WW and WL for viewing the mediastinum
325wwx & 50WL
What is the WW and WL for viewing the lungs
2000ww & -500wl
What is the common slice thickness and slice interval for the chest
1cm x 1cm ( 10mm x 10mm)
Besides using 1mm slice thickness and interval, which two post processing methods will help to demonstrate a small nodule
Edge enhancement
Magnifaction
You could rescan the lung again
Use a small FOV
Why is contrast media injected for CT scans of the chest
Flow of contrast through the vessesls
What are the advantages of dynamic scanning of the chest
Reduces patient movement
What is the disadvantage of dynamic scanning of the chest
Reconstruction images do not appear until after the dynamic sequence is completed
What is volume scanning also know as
Spiral or helical CT scan
List the advantages of spiral CT of the chest
Useful in detecting small lesions
Shorter examination times
Scan the entire chest in one breath
Decreased amount of contrast injected
An important landmark for the chest is the sternal angle. Which structure is not found at this level
Highest pint of the arch of the aorta
When viewing axial sections of the chest from the apex of the lung to the base which structure is seen first
Pulmonarty artery
At the level of T4-5 which structure is the most posterior
Esophagus
Which two veins join to form the superior vena cava
Right and left brachiocephalic
The head of the rib articulates with the thoracic vertebra at the
Facet on the body of the vertebrae
The right crus of the diaphragm crosses posterior to the
Inferior vena cava
The aorta arises off the left ventricle and is directed
Posteriorly to the left
Which joints are found between the superior and inferior articular processes
Zygapophyseal joint
List three features unique to the cervical spine
Transverse foramina
Bifid spinous process
Over lapping vertebral bodies
List the features unique to the thoracic spine
Presence of facets for articularion with ribs
What is the short column of bone found between the superior and inferior articular processes in typical vertebral called
Articular pillar
What term used for the articular pillar
Lateral mass
What is the portion of lamina located between the superior and inferior articular processes called
Pars interarticularis
What do the superior and inferior vertebral notches of adjacent vertebrae join together to form
Intervertebral foramen
List the inner and outer aspects of an intervertebral disc
Annulus fibrousus
Nucleus pulposus
What is the condition involving a slipped disk is correctly reffered to as
Herniated nucleus pulposus(HNP)
What would normally be found within the central canal of the spinal cord
Cerebrospinal fluid
The extension of the meninges inferior to the ternimation of the spinal cord is called the
Filum terminale
The outermost layer of the meninges is the
Dural mater
What would normally be found inmmediately surrounding the central canal of the spinal cord
Gray mater
Cerebrospinal fluid normally circulates in the
Subarachnoid space
In the adult the spinal cord extends from the medula to the
L1-L2
The epidural space contains
Fat
To do a lumbar puncture the needle is inserted into the
Suvarachnoid space
The subdural space commonly contains
Interstitail fluid
The highly vascular innermost layer of the meninges is the
Pia mater
Is IV contrast used for CT of the spine
Yes see CAR guidelines
Why is the gantry angled for transverse scans of the lumbar spine
To place beam perpendicular to long axis of spine
What direction would the gantry be angled for scans of the lumbar spine
Usually caudally as patient would be placed in scanner feet first
Spinal nerves are part of the central nervous system
True or False
True
False
False
The arachnoid layer of the meninges is avascular
True of False
True
False
True
The subdural space normally contains CSF
True or False
True
False
False
The spinal cord extends from the medulla to the coccyx
True or False
Fasle
The spinal tap is done to remove CSF from the central canal of the spinal cord
True or False
True
False
False
The nervous tissue surrounding the central canal of the spinal cord is gray matter
True or False
True
False
True
The outermost layer of the spinal cord is teh arachnoid mater
True or False
True
False
False
In the adult the spinal cord extends from the medulla to L2
True or False
True
False
True
The tapering end of the spinal cord below the lumbar enlargement is called the conus medullaris
True or False
True
False
True
The roots of the spinal nerves that angle inferiorly in the vertebral canal from the end of the spinal cord from the cauda equina
True or False
True
False
True
Author
marlasherman
ID
148627
Card Set
Mrt 249
Description
exam
Updated
2012-04-20T17:32:03Z
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