Chap 11-13: Blood Vessels Flashcards
Blood vessels outside the heart are divided into two
classes
- Pulmonary Vessels
- Systemic vessels
which transport blood from the right ventricle of the
heart through the lungs and back to the left atrium
Pulmonary Vessels
which transport blood from the left ventricle of the heart
through all parts of the body and back to the right
atrium
Systemic Vessels
● carry blood toward heart
● think with less elastic
Veins
exchange occurs between blood and tissue fluid
Capillaries
● carry blood away from heart
● thick with a lot of elastic
Arteries
○ innermost layer
○ simple squamous
Tunica intima
○ outermost layer
○ connective tissue
Tunica adventitia
○ middle layer
○ smooth muscle with elastic and collagen
Tunica media
● largest in diameter
● thickest walls
● Example - aorta and pulmonary trunk
ELASTIC ARTERIES
● medium to small size
● thick in diameter
● contain smooth muscle cells
● can control blood flow to body regions
MUSCULAR ARTERIES
collect blood from small veins and deliver to large
veins
MEDIUM SIZED VEINS
contain valves
LARGE VEINS
blood pump from right ventricle towards lung
Pulmonary Trunk
exit lungs and carry O2 rich blood to left atrium
Pulmonary veins
part of descending aorta that extends through
thorax to diaphragm
THORACIC
passes superiorly from left ventricle
ASCENDING
3 major arteries which carry blood to head and
upper limbs originates at the
AORTIC ARCH
ABDOMINAL
descending aorta that extends from diaphragm
where it divides at the common iliac arteries
● supply blood to stomach, pancreas, spleen, liver,
● upper duodenum
CELIAC TRUNK ARTERIES
● supply blood to colon
INFERIOR MESENTERIC ARTERIES
● supply blood to small intestines and upper portion
of colon
SUPERIOR MESENTERIC ARTERIES
● supply blood to kidneys
RENAL ARTERIES
● supply blood to liver
HEPATIC ARTERIES
● supply blood to testes
TESTICULAR ARTERIES
● supply blood to ovaries
OVARIAN ARTERIES
● supply blood to lumbar vertebra and back muscle
LUMBAR ARTERIES
● supply blood to diaphragm
INFERIOR PHRENIC ARTERIES
● division of common iliac artery
● supply blood to lower limbs
EXTERNAL ILIAC ARTERIES
● branches from abdominal aorta
● divides into internal iliac arteries
COMMON ILIAC ARTERIES
● division of common iliac
● supply blood to pelvic area
INTERNAL ILIAC ARTERIES
● supply to thigh
FEMORAL ARTERIES
● supply blood to knee
POPLITEAL ARTERIES
● supply blood to leg and foot
ANTERIOR AND POSTERIOR ARTERIES
● supply blood to lateral leg and foot
FIBULAR ARTERIES
● returns blood from head, neck, thorax, and right
upper limbs
● empties into right atrium of heart
SUPERIOR VENA CAVA
● returns blood from abdomen, pelvis, lower limbs
● empties into right atrium of heart
INFERIOR VENA CAVA
● drain blood from head and neck
● empties into subclavian veins
External jugular vein
● drain blood from brain, face, neck
● empty into subclavian veins
Internal jugular vein
empty into axillary vein
Brachial veins
● forms brachiocephalic veins
Subclavian veins
● join to form superior vena cava
Brachiocephalic veins
empty into axillary vein and basilic vein
Cephalic veins
connects to cephalic vein near elbow
Median Cubital veins
drain blood from thorax into superior vena cava
Right and left brachiocephalic veins
drain blood from thorax into superior vena cava
Azygos veins
empty into brachiocephalic veins
Internal thoracic veins
● drain blood from posterior thoracic wall
● drains into azygos vein on right side
Posterior intercostal veins
receives blood from azygos vein of left side
Hemiazygos veins
● drain blood from thigh and empty into external
iliac vein
Femoral veins
● drain from foot and empty into femoral vein
Great saphenous veins
● drain blood from knee and empty into femoral
vein
Popliteal veins