AFF Lab: Circulatory System (Arteries and Veins), AFF lab heart

tunica intima

innermost layer of a blood vessel

tunica media

- middle layer of a blood vessel

- made of smooth muscle

tunica externa

- outermost layer of a blood vessel

- anchors vessels to tissues

tunica media

arteries are thicker and more round than veins because the... has more layers

arteries

blood vessels that carry blood away from the heart

veins

blood vessels that carry blood to the heart

lymphatic vessels

blood vessels that collect tissue fluid and return it to the venous system

umbilical vein

in fetal circulation, the only vessel transporting oxygen rich blood

ductus arteriosus

- a short connection between the pulmonary trunk and the arch of the aorta

- in fetus

ligamentum arteriosum

the ductus arteriosus becomes a functionless solid cord called the...

from the aorta and through the ductus arteriosus

how atrial blood gets to lungs in a fetus

the pulmonary artery

how atrial blood gets to lungs in an adult

smaller and thicker; larger and thinner

arteries tend to be... and veins tend to be...

cranial vena cava

4

above the heart and drains into the r atrium

left brachiocephalic vein

8

drains blood from the jugular and subclavian veins into the cranial VC

right brachiocephalic vein

3

drains blood from the jugular and subclavian veins into the cranial VC

(L/R) external jugular vein

2, 9

drains blood from the head and face into the brachiocephalic veins

(L/R) internal jugular vein

1, 10

drains blood from the vessels of the brain into the brachiocephalic veins

(L/R) subclavian vein

5

drains blood from the axillary and brachial veins into the brachiocephalic veins

(L/R) axillary vein

7

outside the rib cage

(L/R) brachial vein

6

upper portion of the limbs

hemiazygous vein

1

drains blood from the intercostal muscles and enters into the r atrium

caudal vena cava

1

below the heart and drains into the r atrium

(L/R) renal vein

2

drains blood from the kidneys and into the caudal VC

(L/R) common iliac vein

12

drains blood into the caudal VC

before the branching

(L/R) external iliac vein

9

after the branching

(L/R) iliolumbar vein

drain blood from the muscles of the lower back

branches outward

(L/R) internal iliac vein

3

drains blood from the pelvic viscera

branches inward

(L/R) femoral vein

6

drains blood from the lower leg

branches outward

(L/R) deep femoral vein

5

drain blood from muscles of the thigh

branches inward

umbilical vein

3

carries oxygenated blood from the placenta into the liver

ductus venosus

2

drains into the caudal vena cava

the widening of the umbilical vein in the liver

hepatic veins

1

drains blood from the liver into the caudal vena cava

hepatic portal vein

1

gastrosplenic vein

2

before the branching

right gastropiploic vein

3

branching from the pyloric region of the stomach

splenic vein

7

after the branching

left gastropiploic vein

4

branching from the cardiac region of the stomach

pancreatic vein

6

drains blood from the pancreas into the hepatic portal vein, cranial mesenteric vein, or gastrosplenic vein

cranial mesenteric vein

5

continuation of the hepatic portal vein

brachiocephalic artery

9

supplies blood to the carotid trunk

left subclavian artery

10

supplies blood to the left foreleg

emerges directly off the arch of the aorta

carotid trunk

11

supplies blood to the common carotid arteries

(L/R) common carotid artery

3

supplies blood to the internal and external arteries

(L/R) external carotid artery

2

supplies blood to the head and face

(L/R) internal carotid artery

1

supplies blood to the brain

right subclavian artery

4

supplies blood to the right foreleg

before rib cage

(L/R) axillary artery

5

after rib cage

(L/R) brachial artery

6

in forelimb

thoracic aorta

2

continuation of the aortic arch through the thoracic region

abdominal aorta

continuation of the thoracic aorta after passing through the diaphragm

coeliac artery

3

supplies blood to the spleen, liver, and stomach

cranial mesenteric artery

4

supplies blood to the pancreas, small intestine, and large intestine

caudal to coeliac

(L/R) renal artery

3

supplies blood to the kidneys

(L/R) external iliac artery

8, 11

branches from the abdominal aorta

(L/R) iliolumbar artery

10

supplies blood to the muscles of the lower back

(L/R) deep femoral artery

4

supplies blood to the muscles of the thigh

branches inward

(L/R) femoral artery

7

supplies blood to the lower leg

(L/R) internal iliac artery

2

supplies blood to the umbilical arteries

branch from the abdominal aorta

(L/R) umbilical artery

1

sandwich the bladder

pericardial sac

surrounds the heart

coronary artery

coronary vein

pulmonary trunk

proceeds out of the right ventricle

carries deoxygenated blood to the lungs

(L/R) pulmonary arteries

2 branches of the pulmonary trunk

aorta

leads out of the left ventricle

arch of the aorta

ductus arteriosus

in a fetus

there is a connection between the pulmonary trunk and the arch of the aorta

the lungs are not functional

the ductus arteriosus is present in fetus because... so the r ventricle blood is shunted into the arch of the aorta

ligamentum arteriosum

once a fetus is born, the ductus arterioles becomes a functionless solid cord

foramen ovale

connects the two atria in the fetal heart

right atrium

2

right auricle

3

lies ontop of the right atrium

pectinate muscle

1

the myocardium of the atria

tricuspid valve

3

valve between the right atrium and the right ventricle

right ventricle

6

trabeculae carnae

8

the myocardium of the ventricles

papillary muscles

5

attached to the cuspid valves via chordae tendonae

contract to pull the valves

chordae tendonae

4

white fibers that connect to the papillary muscles and cuspid muscles

pulmonary semilunar valve

blood from the right ventricle passes through here and into the pulmonary trunk

pulmonary veins

carries oxygenated blood back to the heart and enters through the left atrium

left atrium

11

left auricle

lies ontop of the left atrium

bicuspid valve

10

valve between the left atrium and the left ventricle

left ventricle

9

aortic semilunar valve

blood from the left ventricle passes through here and enters into the aorta

interventricular septum

7

separates ventricles