Arteries

Question 1

Dorsal intercostal

Answer 1

ventral and dorsal branches arise from it; first 3 come from the costocervical trunk; remaining 9 come from the aorta; have lateral cutaneous branches that perforate the intercostal m. to supply cutaneous structures (incl. mammary glands); anastomose with ventral branches from internal thoracic a./v.

Question 2

Ventral intercostal

Answer 2

come from internal thoracic artery, anastomose with dorsal intercostals, perforate ventral aspect of intercostal m.

Question 3

Internal thoracic

Answer 3

branch of the subclavian artery, leading to the ventral aspect of the intercostal space; gives off the ventral intercostal a.

Question 4

Lateral thoracic

Answer 4

emerge from the axilla between the latissimus dorsi and deep pectoral muscles; branches of the axillary a. that supply muscles, skin and subcutaneous tissues, including cranial thoracic mamma.

Question 5

Cranial epigastric

Answer 5

terminal branch of the internal thoracic a. that emerges from the thorax in the angle between the costal arch and the sternum; passes caudally on the deep surface of the rectus abdominis; gives rise to the cranial superficial epigastric; terminates in deep surface of the rectus abdominus

Question 6

Cranial superficial epigastric

Answer 6

perforates the muscle and runs caudally on its external surface; supplies skin over rectus abdominis and caudal thoracic/cranial abdominal mammae

Question 7

Pulmonary trunk

Answer 7

coming out of the right ventrical, branches into left and right pulmonary artery carrying deoxygenated blood to the lungs

Question 8

R & L pulmonary artery

Answer 8

head into their respective lungs

Question 9

Aorta (ascending)

Answer 9

extends cranially, covered by pericardium, makes sharp bend dorsally to become the aortic arch

Question 10

Aortic arch

Answer 10

runs caudally, becoming descending aorta

Question 11

Descending aorta

Answer 11

located ventral to the vertebrae; part cranial to the diaphragm is thoracic aorta, part caudal is the abdominal aorta

Question 12

Brachiocephalic trunk

Answer 12

first branch of the aortic arch, passes obliquely to the right across the ventral surace of the trachea; terminates at R common carotid a.

Question 13

Common carotid (R&L)

Answer 13

arises from the brachiocephalic trunk; heads cranially to head

Question 14

Subclavian (R)

Answer 14

brachiocephalic becomes this just after R common carotid a.

Question 15

Subclavian (L)

Answer 15

arises from aortic arch, passes obliquely to the left across the ventral surface of the esophagus

Question 16

Vertebral

Answer 16

crosses the medial surface of the first rib and disappears dorsally between the longus colli and the scalenus muscles

Question 17

Costocervical trunk

Answer 17

arises distal to the vertebral artery, crosses its lateral side, extends dorsally as far as the vertebral end of the first rib; supplies the structures of the first, second, and third intercostal spaces; supplies the muscles at the base of the neck, muscles dorsal to first few thoracic vertebrae

Question 18

Superficial cervical

Answer 18

arises from the subclavian opposite of the origin of the internal thoracic artery, supplies the base of the neck and the adjacent scapular region

Question 19

Bronchoesophageal

Answer 19

leaves th eright 5th intercostal artery close to its origin and crosses the left face of the esophagus

Question 20

Esophageal

Answer 20

comes off the bronchoesophageal artery to supply the esophagus

Question 21

Bronchial

Answer 21

blood supply to the lung tissue, terminus of the bronchoesophageal artery

Question 22

Intercostal

Answer 22

dorsal and ventral, supply the intercostal structures

Question 23

R coronary

Answer 23

branch off the ascending aorta, supplies the right atria, ventricle and auricle of the heart; run in the coronary groove

Question 24

L coronary

Answer 24

branch off the ascending aorta, supplies the left side of the heart, branches into the paraconal interventricular branch and circumflex branch; circumflex branch later gives off the subsinuosal interventricular branch

Question 25

Paraconal interventricular branch (L coronary a.)

Answer 25

runs in the Paraconal interventricular groove

Question 26

Subsinuosal interventricular branch (L coronary a.)

Answer 26

runs in the Subsinuosal interventricular groove, comes off of the Circumflex branch of the L coronary a.

Question 27

Circumflex branch (L coronary a.)

Answer 27

terminus of the L coronary a., extends caudally in the left part of the coronary sulcus and supplies the subsinuosal interventricular branch