The Great Vessels and Diaphragm Flashcards
___ is the most important muscle of respiration
diaphragm
Cite the openings of the diaphragm
IVC at T8
Esophageal at T10
Aortic at T12
___ part of the diaphragm contains the right crus, left crus and medial arcuate
Vertebral part
The diaphragm is innervated by?
Phrenic nerve
Cite the muscles used during forced Inspiration
- External intercostals
2. Accessory Muscles: SCM, serratus anterior, alae nasi, genioglossus, arytenoid
Cite the muscles used during forced expiration
- Internal Intercostals
2. Abdominal Muscles
What are the branches of the arch of the aorta?
- Brachiocephalic trunk
- Left Common Carotid
- Left subclavian
What muscle divides the subclavian artery into 3 parts?
scalenus anterior
What are the branches of the first part of the subclavian artery?
- vertebral
- Thyrocervical
- Internal thoracic
The vertebral artery passes through the ___ before it ascends to the foramen magnum
transverse foramina
The first part of the subclavian artery contains the thyrocervical trunk. What are its branches
- Inferior thyroid
- Superficial cervical
- Suprascapular
The second part of the subclavian artery has a branch ____
Costocervical
Which part of the subclavian artery lie behind the scalenus anterior?
second part
The third part of the subclavian artery lies behind the
first rib
What are the unpaired branches of the thoracic descending aorta?
- Bronchial
- Pericardial
- Esophageal
- Mediastinal
What are the paired branches of the thoracic descending aorta?
- Posterior intercostal
2. Superior phrenic
What are the unpaired branches of the abdominal aorta
- Celiac trunk
- Superior mesenteric
- Inferior mesenteric
What are the paired branches of the abdominal descending aorta?
- Inferior phrenic
- Adrenal
- Renal
- Gonadal
- Lumbar
The celiac trunk arises at the level of what thoracic vertebra?
T12
The inferior mesenteric artery arises at the level of what thoracic vertebra?
L4
The renal artery arises at the level of what vertebra?
L1
The aorta pierces the diaphragm at the level of what thoracic vertebra?
T12
The arch of the aorta preferentially arches upward, backward and to the ___ (left or right)
left
What is the most common form of CoA?
Post ductal CoA = distal arteriosus
What is the marker to say that the CoA is postductal or preductal?
ductus arteriosus
What is the infantile form of CoA?
Preductal = proximal to the ductus ateriosus
The IJV is a continuation of the ___ of the brain
Sigmoid Sinus
The IJV descends through the neck in the ___ sheath
carotid sheath
The IJV ___ (medial/lateral) to the vagus and common carotid artery
lateral
What are the tributaries of the IJV?
- Lingual
- Inferior petrosal sinus
- Pharyngeal
- Superior thyroid
- Facial
- Middle thyroid
LIPS For Men
The phrenic nerve lies ___ (in front/behind) the subclavian vein
behind
What are the tributaries of the SVC?
- Right brachiocephalic
2. Left brachiocephalic
What are the tributaries of the Right brachiocephalic vein?
- IJV
2. R subclavian
In anterior approach of Central venous catheter insertion, the catheter is inserted between what surface markers?
Apex of the triangle formed by the SCM and R clavicle
In infraclavicular approach of Central venous catheter insertion, the catheter is inserted between what surface markers?
below the clavicle lateral to the thumb on the right side.
The thumb is placed in the intersection of the clavicle and first rib
In central venous catheter insertion, the needle pierces through what layers?
- Skin
- Superficial fascia
- Pectoralis major
- Clavipectoral fascia
- Subclavius muscle
- Wall of subclavian vein
in central venous catheter, what structures are vulnerable to needle puncture?
- Clavicle
- First rib
- Subclavian artery
- Phrenic nerve
Within the carotid sheath, the IJV is ___ to the CCA (medial/later;)
lateral
The right and left brachiocephalic vein unite at this level to form the SVC
Inferior border of the 1st right costal cartilage
The union of the right and left brachiocephalic veins ends at the level of the ___ to enter the R atrium
3rd right costal cartilage
What vein connects the SVC from the IVC?
Aygous veins
What are the tributaries of the azygous vein
- Right ascending lumbar
2. Right Subcostal
The azygous vein ascends through the aortic opening at the level of
T5
The hemiazygous is formed by what veins
- Left ascending lumbar
2. Left subcostal
With respect to the aorta, the azygous vein lies on its ___ (right/left) side
right
In SVC syndrome from bronchogenic CA, this vein can be used as an alternative
Azygous vein
[Diaphragm]
the phrenic nerve arises from what cervical nerves?
C3
C4
C5
[Diaphragm]
the aortic opening transmits
- Aorta
- Thoracic duct
- Azygous
[Diaphragm]
the caval opening transmits
- IVC
2. Phrenic nerve, right terminal branches
[Diaphragm]
the esophageal opening transmits
- Esophagus
- Vagus (right and left)
- Gastric vessels, lef, branch to esophagus
- Lymphatics from the lower 1/3 of esophagus
[Diaphragm]
the right crura arises from ___
Sides of T1 to T3
[Diaphragm]
the left crura arises from the ___
body of L1 and L2
[Diaphragm]
the medial arcuate arises from the
side of L2 to the transverse process of L1
[Diaphragm]
the lateral arcuate arises from the
transverse process of L1 to T12
The right lymphatic duct drains what structures?
- Right side of the head and neck
- Right side of the thorax
- Right upper limb
The thoracic duct drains to the ___
left subclavian vein
The right lymphatic duct drains to the
right subclavian vein