last and longest division of the largest artery off the aortic arch. Blood is flowing downward. It passes through the two divisions:1. Thoracic aorta2. Abdominal aorta
What are the last two branches of the Abdominal aorta that terminates the descending aorta?
right and left common iliac arteries
where are the right and left common iliac arteries located?
located at the largest and most superior segment of the hip bone (ilium)
How many sets of iliac arteries are there?
three (3) sets
terminal branches of the descending aorta which divides into Internal & External iliac arteries
Common iliac artery
feeds and embalms the gluteal region
Internal iliac artery
(toward the outside) will continue as the femoral artery; lies medial
External iliac artery
What are types/ parts of lower extremities
thigh, knee, leg, foot
(hip & knee) medial boundary- the adductor longus muscle and where the femoral artery ends
Femoral- thigh region
the femoral artery continues as what?
popliteal artery (behind the knee) posterior to the knee
knee to ankle
The popliteal artery divides into what?
Anterior tibial arteryDorsalis pedisPosterior tibial artery
(in front of the tibia or shin bone) the artery comes from behind the knee and crosses in front of the shin bone or tibia. At the level of the ankle
Anterior tibial artery
The anterior tibial artery continues as what?
feeds blood to the toenail surface of the foot
(behind the tibia or shin bone) last artery and feeds the sole of the foot
Posterior tibial artery
the diaphragm divides serving as what?
a boundary line for the descending aorta between the thoracic and abdominal cavities
leaving the arch of aorta, continues as the descending aorta in the thoracic cavity called?
What are the two branches off the thoracic aorta
1. Parietal branches2. Visceral branches
feeds the walls making up the thoracic cavity
What are the branches off the parietal branch
1. Intercostal arteries2. Subcostal arteries3. Superior phrenic arteries
feed the spaces between the ribs 8 or 9 pair
two (2) feed the spaces beneath the ribs, but above the diaphragm
two (2) Left & Right feed the superior surface of the phrenic muscle or diaphragm
Superior phrenic arteries
feeds the viscera or organs within the thoracic cavity
What are the branches off the Visceral branch
1. Bronchial arteries2. Pericardial arteries3. Esophageal arteries
feed the bronchi (passageway between the windpipe and lungs) trachea
feed the pericardium (sack surrounding the heart)
feed that portion of the esophagus located in the thoracic cavity (esophagus- the muscular tube that conveys food from the throat to the stomach)
branches that come off the abdominal aorta 3 sets are classifies according to what they feed
Descending abdominal aorta
What are the 3 sets of branches off the descending abdominal aorta
Unpaired visceral branchesPaired visceral branchesParietal branches
feed unpaired or single organs within the abdominal cavity. All branches that come off of the anterior (front) of the aorta feed the unpaired organs and are classified as unpaired visceral branches
Unpaired visceral branches
feed paired organs, organs that occur in pairs located with or originate in the abdominal cavity. All branches that come off of the lateral sides of the aorta feed paired organs located in or originating in the abdominal cavity are classified as paired visceral branches
Paired visceral branches
feed the walls that make up the abdominal cavity. All branches that come off the posterior (bottom) of the aorta feed the walls of the abdominal cavity are classified as parietal branches
What are the branches of the parietal branches off the Abdominal Aorta (Posterior)
1. Inferior Phrenic Arteries2. Lumbar Arteries3. Middle sacral arteries
two (2) Left and RIght most superior are the Inferior Phrenic Arteries of the parietal branch off the abdominal aorta- feed the inferior, or under the surface, of the Phrenic muscle or diaphragm
Inferior Phrenic Arteries
four pair- feed the lumbar or lower back region
most inferior single unpaired parietal branch off the abdominal aorta- feed the sacrum and coccys and rectum
Middle sacral arteries