Test 2 Vasculature Flashcards
what does the common carotid branch off of?
R: brachiocephalic
L: aortic arch
what is it called when the common carotid splits?
carotid bifurcation
Divisions of carotid bifurcation?
Internal and External Caroitd
internal carotid destination?
brain and circle of Willis
what is located within the Internal Carotid artery?
carotid sinus and carotid body
what does the carotid sinus sense?
Blood pressure via baroreceptors
what does the carotid body sense?
pH, CO2 via chemoreceptors
External Carotid artery destination?
soft structures of superficial head, supply the upper neck, surface and head
branches of Subclavian artery
1) . Vertebral arteries,
2) . Thyrocervical trunk,
3) . Costocervical trunk
4) . Internal thoracic artery
Vertebral arteries destination
brain (travel through cervical transverse foramen and then through the foramen magnum
Thyrocervical trunk destinations
1) . muscles at base of neck, scapula,
2) . thyroid
3) . cervical structure
Costocervical trunk destinations
1) . ribs
2) . cervical structures
Internal thoracic artery destination
anterior rib cage
venous supply of the neck and skull
Jugular veins (internal, external and anterior)
what does the internal jugular vein do?
drains blood from brain
what does the external jugular vein do?
drains superficial structures of the head
what does the anterior jugular vein do?
empties into external jugular vein at base of neck to give jugular venous arch
Vagus nerve structural destinations
tongue, pharynx, thorax, and abdomen
thyroid gland vasculature
superior branches of external carotid artery and inferior branches of subclavian artery
parathyroid vasculature
inferior thyroid artery branching from subclavian
parathyroid innervation
cervical sympathetic ganglia
laryngeal blood vessles
superior branches from external carotid artery inferior branches from subclavian artery
blood vessels of pharynx
arteries = branches of external carotid pharyngeal venous plexus
post triangle of neck blood vessels contents
- suprascapular artery,
- subclavian artery,
- external jugular vein,
- subclavian vein,
- brachiocephalic vein
contents of carotid triangle
- pulse site,
- thyroid,
- common cartoid branching to in/ex carotid,
- carotid body,
- internal jugular vein and branches,
- CN 11,
- CN 12,
- ansa cervicalis,
- CN 10,
- sympathetic plexus
branches of external carotid
- ascending pharyngeal artery,
- occipital artery,
- facial artery,
- superior thyroid artery
superior aperture contents
esophagus, trachea, nerves (vagus, sympathetic trunk, cervical plexus), blood vessels (carotids, subclavian, vertebral, jugular)
inferior abdominal aperture contents
esophagus, nerves (vagus, sympathetic chain), blood vessels (inf vena cava, descending aorta), internal thoracic arteries
what are the internal thoracic arteries called as they pass the diaphragm?
superior epigastric arteries
blood supply to Ant and Ant/lat thoracic wall
R/L subclavian arteries -> internal thoracic artery -> ant intercostals arteries -> ant and lat intercostals spaces of ribs 1-10
blood supply to post and post/lat thoracic wall
descending abdominal aorta -> paired post intercostal arteries -> post and post/lat intercostals spaces of ribs 4-11
Anterior intercostal veins
internal thoracic veins -> brachiocephalic vein
how do the posterior intercostals veins feed back to the heart?
azygos/hemiazygos system -> superior vena cava
lymph flow
blood plasma -> capillary filtration -> ECF -> lymph capillary -> lymph fluid -> lymph vessel -> lymph nodes -> lymph trunk -> lymph duct
2 lymph ducts
Right Lymphatic Duct and Thoracic Duct
what does the Right lymphatic duct drain?
right side of head, arm, and thorax
what does the Thoracic duct drain?
left side head, arm, thorax, and entire abdomen, pelvis, legs
anterior arterial blood flow to the mammary glands
anterior intercostal -> medial mammary branches
axillary arterial blood flow to the mammary glands
axillary artery -> lateral thoracic and thoracoacromial -> lateral breast
posterior arterial blood flow to the mammary glands
posterior intercostals artery -> deep structures
which veins are found in the mediastinum outside the pericardium?
1) . R/L brachiocephalic
2) . superior vena cava
3) . azygos veins
which arteries are found in the mediastinum outside the pericardium?
1) . aortic arch/descending aorta/ branches to thoracic structures
2) . pulmonary truck with R/L pulmonary artery branches
3) . brachiocephalic trunk
4) . left carotid
5) . left subclavian
venous supply to the right atria
1) . Superior vena cava - blood from head, arms and thorax
2) . inferior vena cava - blood from abdomen, pelvis, and legs
3) . coronary sinus - blood from heart myocardium
where does the right coronary artery branch to?
1) . SA node
2) . base of heart
3) . posterior R/L ventricles and IVC
4) . AV node
where does the left coronary artery branch to?
1) . SA node (40%)
2) . Ant R and L ventricles and IVS
3) . post surface
4) . left border
5) . post R and L ventricles and IVC (30%)
where do the R/L coronary artery run?
in AV sulcus
how does the right coronary artery get to the Post R/L ventricles and IVC?
via posterior interventricular
how does the right coronary artery get to the base of the heart?
right marginal
how does the left coronary artery get to the Ant R/L ventricles and IVS?
via anterior interventricular artery = left anterior descending artery
how does the left coronary artery get to the posterior surface of the heart?
via circumflex artery
how does the left coronary artery get to the left border of the heart?
via marginal artery
where do the veins of the heart drain?
into great cardiac vein (left coronary sulcus) -> coronary sinus -> right atria
how does the left coronary artery run to the ant R/L ventricles and IVS?
via anterior inter ventricular artery and left anterior descending artery
how does the left coronary artery branch to the posterior surface of the heart?
via circumflex artery
how does the left coronary artery run to the left border of the heart?
via the marginal artery
how does the left coronary artery branch to the post R/L ventricles and IVC?
via posterior inter-ventricular artery
how does the R coronary artery branch to the base of the heart?
via right marginal artery
how does the R coronary artery branch to the posterior R/L ventricles and IVC?
via posterior inter-ventricular artery
What blood and lymph vessels pass through the diaphragm?
1) . descending aorta
2) . Inf vena cava
3) . Sup epigastric arteries and veins
4) . azygous and hemiazygous veins
5) . thoracic duct
How does the descending aorta pass through the diaphragm?
via the aortic hiatus formed by L/R crus
How does the inferior vena cava pass through the diaphragm?
via the caval opening in central tendon
how do the superior epigastric arteries and veins pass through the diaphragm?
via sternocostal triangle
how do the azygous and hemiazygous veins along with the thoracic duct pass through the diaphragm?
via aortic hiatus
what passes through the aortic hiatus?
1) . descending aorta
2) . azygous and hemiazygous veins
3) . thoracic duct
vascular supply of superior surface of diaphragm
thoracic aorta and internal thoracic artery
vascular supply of inferior surface of diaphragm
abdominal aorta
what does the musculophrenic artery supply blood to?
anterolateral diagram and abdominal wall near diaphragm
what does the superior epigastric artery supply blood to?
anterior abdominal wall
what are the main arteries supplying the spinal cord?
1) . vertebral, subclavian arteries
2) . intercostal arteries
3) . lumbar arteries
4) . lateral sacral arteries
segmental branches from the main arteries form what?
longitudinal arteries that run anterior and posterior
how many posterior spinal arteries are there?
2
what passes thru the greater sciatic foramen?
1) . sciatic nerve
2) . S/I gluteal nerves, arteries, and veins
3) . piriformis muscle
Pelvic vasculature: arteries
1) . paired internal iliac
2) . S/I rectal
3) . median sacral
4) . paired ovarian
paired internal iliac arteries are branches off of what?
common iliac
S rectal artery is a branch from what?
inferior mesenteric artery
median sacral artery is from what?
abdominal aorta
Venous route in pelvic vasculature
organs -> venous plexi -> internal iliac veins -> common iliac veins -> inferior vena cava