NBDE: ANATOMICAL SCIENCES: Veins Flashcards Preview

NBDE PART 1 BIOCHEM/PHYSIOLOGY > NBDE: ANATOMICAL SCIENCES: Veins > Flashcards

Flashcards in NBDE: ANATOMICAL SCIENCES: Veins Deck (151):
1

the portal vein is about 2 inches long and is formed behind the neck of the pancreas by the union of the

superior mesenteric and the splenic veins

2

the portal vein drains blood from the

abdominal part of GI tract: (from lower esophagus to halfway down anal canal), spleen pancreas and gallbladder

3

the portal vein enters the _ omentum

lesser

4

almost all of blood coming from the digestive system drains into the_circulation

portal

5

the _ vein drains the gallbladder and is a tributary to the portal vein

cystic vein

6

the portal vein carries _ as much blood as the hepatic artery

twice as much

7

the right posterior intercostal vein drains blood into the

azygos vein

8

the azygous venous system consists of the azygos vein, the hemiazygos vein and the accessory hemiazygos vein. They drain blood from the

posterior intercostal spaces, posterior abdominal wall, the pericardium, the diaphragm, the bronchi, and the esophagus

9

the origin of the azygos vein is variable, often formed by the union of the

right ascending lumbar vein and the right subcostal vein.

10

the azygos vein ascends thru the _ opening of the diaphragm, on the _ side of the aorta, to the level of the _ vertebra

aortic
right side of aorta
T5

11

the azygos at the 5th thoracic vertebrae arches forward above the root of the _ lung to empty into the

right lung
superior vena cava

12

the azygos vein leaves an impression on which lung

right lung

13

tributaries to azygos vein

8 lower intercostal vains, right superior intercostal vein, superior and inferior hemiazygos veins and mediastinal veins

14

most posterior intercostal veins empty into the _ which in turn empties into the SVC at the 4th thoracic vertebrae

azygos venous system

15

the SVC contains all venous blood from

head neck and both limbs

16

the superior vena cava is formed from the union of what 2 veins

right and left brachiocephalic veins

17

SVC ends in the

right atrium of heart

18

IVC pierces the diaphragm opposite the _thoracic vertebra

8th

19

right braciocephalic vein is formed at the root of the neck by the union of the

right subclavian and right internal jugular veins

20

the left braciocephalic vein passes obliquely down and to the right, _ the maubrium sterni and in front of the aortic branches to join the SVC

behind

21

the subclavian vein is anterior to the:
scalenus anterior muscle,
scalenus middle muscle
scalenus posterior muscle

scalenus anterior muscle

22

each subclavian vein begins at the outer border of the _ rib as a continuation of the _vein

1st
axillary

23

at the medial border of the SCALENUS ANTERIOR the subclavian vein joins the _ to form the _

internal jugular vein
braciocephalic vein

24

the external jugular vein lies in the superficial fascia _ to the platysma

deep

25

the external jugular vein passes down from the region of the _ to the middle of the

angle of the mandible
clavicle

26

the external jugular vein drains into the

subclavian by perforating the deep fascia just above the clavicle

27

the subclavian vein follows the

subclavian artery

28

1. the subclavian _ passes anterior to the scalenus anterior
2.the subclavian _ passes posterior to the scalenus anterior

1. vein is anterior
2. artery is posterior

29

the thoracic duct drains into the junction of the

left internal jugular and subclavian veins

30

the brachial vein drains blood into the

axillary vein

31

the__vein drains blood from the radial side to the antebrachium and brachium into the axillary vein

cephalic

32

does the SVC have valves

no

33

does the IVC have a valve

it has a rudimentary non functioning valve

34

oxygenated blood leaves the placenta and enters the fetus thru the

umbilical vein

35

blood leaves the _ and enters the fetus thru the umbilical vein

placenta

36

1.the only fetal vessel to carry blood rich in oxygen and nutrients is the
2. all the other fetal vessels carry

1.umbilical vein
2. a mixture of arterial and venous blood.

37

after circulating in the fetus the blood returns to the placenta thru the

umbilical arteries

38

the umbilical vein connects the placenta to the

liver

39

after fetus is born, the umbilical vein will

the infant's umbilical vein is completely obliterated and is replaced by a fibrous cord called the round ligament of the liver AKA LIGAMENUM TERES

40

ductus venosus

venous shunt within the liver to connect with the IVC

41

ductus venosus in newborn?

forms ligamentum venosum, a fibrous cord in the liver

42

ductus venosus transports

oxygenated blood directly into IVC

43

foramen ovale is an opening bw the

R and L atria

44

__and _ = shunts to bypass the pulmonary system of fetus

foramen ovale and ductus arteriosum

45

ductus areteriosum is bw

pulmonary trunk and the aortic arch

46

ductus areteriosum after birth =

atrophies and becomes the ligamentum arteriosum

47

foramen ovale after birth

foramen ovalis

48

umbilical arteries after birth

atrophy to become the medial umbilical ligaments

49

1. the medial umbilical ligament represents the
2. the median umbilical ligament =

1. remnant of umbilical arteries of fetus
2. remnant of urachus of embryo

50

1. is the umbilical vein paired
2. is the umbilical artery paired

1. no
2. yes

51

the paired umbilical arteries arise from the _ and supply DEoxygenated blood from fetus to placenta

iliac arteries

52

unlike the arteries and veins, capillaries are very

thin and fragile

53

capillaries are how thick

1 epithelial cell thick. so thin that blood must pass thru in single file.

54

arteries and veins run parallel in the body with a web like network of _ connecting them

capillaries

55

_ pass blood to capillaries

arterioles (O2 rich) ==> capillaries for gas exchange

56

capillaries pass their waste rich blood to

venules

57

capillaries join

arterioles and venules

58

do capillaries have muscle layer

no

59

muscle layer of
1. arteries
2. veins

1. thick elastic
2. thin elastic

60

do arteries/capillaries/veins have semilunar valves

only veins

61

pressure in arteries are high/low? pulse/no pulse

high with pulse

62

pressure in veins are high/low? pulse/no pulse

low, with pulse

63

pressure in capillaries are high/low? pulse/no pulse

less than veins , no pulse

64

the greatest blood pressure drop occurs across the

arterioles

65

which has a thinner wall venules or arterioles

venules

66

which has larger diameter veins or arteries

veins
have larger diameter bc they have less smooth muscle inside.

67

veins maintain a _ blood pressure required for return to heart

low

68

all of the nerves are embedded in the wall of the cavernous sinus except:
a. IV trochlear
b. I ophthalmic
c. III oculomotor
d. maxillary nerve CN V2
e. mandibular nerve CN V3

mandibular nerve V3

69

do we have 1 or 2 cavernous sinuses

2

70

cavernous sinuses are large veins located immediately behind each

eye socket and on either side of the pituitary gland

71

the cavernous sinuses drain into the

1. inferior petrosal sinus ==>IJV
2. superior petorsal sinus ==> transverse vein==> sigmoid sinus ==> IJV
3. or anteriorly into the ophthalmic veins

72

why do the veins of the head and SVC not have valves

because use gravity

73

what artery and CN pass thru the cavernous sinus

CN VI abducens and internal carotid artery

74

a cavernous sinus thrombosis can be caused from an odontogenic infection that communicates with he cavernous sinus thru the _ veins

opthalmic

75

cavernous sinus syndrome is characterized by edema of the eyelids, conjunctivae of the eyes and paralysis of

the CN that go thru the cavernous sinus

76

the orbital cavity is drained by the

superior and inferior ophthalmic veins

77

both the superior and inferior ophthalmic veins pass thru the _ and drain into the cavernous sinus

superior orbital fissure

78

the _ ophthalmic vein communicates thru the inferior orbital fissure with the pterygoid venous plexus

inferior

79

the superior ophthalmic vein communicates in the front of the orbit with the _ vein

facial vein

80

what veins are found within the marrow spaces of the skull?

diploic veins

81

the postero-superior (upper and back part of skull) group of cranial sinuses include the

superior and inferior sagittal, straight, transverse and occipital sinuses

82

the antero-inferior group (base of skull) of cranial sinuses include the

cavernous, petrosal, and basilar plexus

83

the veins of the brain are direct tributaries of the dural venous sinuses. t/f

true

84

the emissary veins which are valveless connect the dural venous sinuses with the

veins of the scalp

85

an emissary vein found in the _ is a means of communication bw the pterygoid plexus and the cavernous sinus

foramen ovale

86

the diploic veins are in the skull and drain the diploic space. what space is this?

in the bones of the skull ==>diploic veins drain these areas into the dural sinuses

87

the internal jugular vein begins in the _ foramen as a continuation of the sigmoid sinus

jugular foramen

88

the internal jugular vein descends in the carotid sheath and ends in the _vein

brachiocephalic

89

carotid sheath

The carotid sheath is an anatomical term for the fibrous connective tissue that surrounds the vascular compartment of the neck

90

contents of the carotid sheath

"I See 10 CC's in the IV":
I See (I.C.) = Internal Carotid artery
10 = CN 10 (Vagus nerve)
CC = Common Carotid artery
IV = Internal Jugular Vein

91

the veins of the _ do not have valves

head and neck

92

which of the following veins join within the parotid gland to form the retromandibular vein?
1.facial and max
2.facial and superficial temporal
3.max and superficial temporal
4. facial and mandibular veins

3.max and superficial temporal

93

the deep facial vein drains the _

pterygoid venous plexus of the infratemporal fossa

94

the facial vein is a continuation of the _ vein past the inferior margin of the orbit

angular

95

pterygoid venous plexus is a venous network associated with the _ muscles.

pterygoid

96

pterygoid venous plexus drains posteriorly by the

maxillary vein

97

the braciocephalic veins (R and L) unite in the _ mediastinum to form the SVC

superior

98

primary resistance vessel =

arterioles

99

what vessels do we have the most of?

capillaries (10 billion)>arterioles (0.5 million)>large arteries and veins (hundreds) > 2 vena cava> one aorta

100

which vessels have the thickest walls

aorta (2mm)> vena cava (1.5 mm) >large arteries (1mm) > large veins> arterioles> capillaries

101

veins/arterioles/arteries/vena cava/aorta have greatest internal radius

vena cava > aorta >large veins> large arteries > >arterioles > capillaries >

102

veins have thinner walls than arteries but have _ diameters because of the low blood pressure required for venous return

larger

103

is blood volume evenly distributed among vessels

no. at rest venous system = 70% of blood volume. heart, arteries and capillaries = 30%

104

which vessel can expand the most

veins can expand 8x more than artery of same size.

105

at the level of the 1st right costal cartilage the braciocephalic veins unite to form the

SVC

106

two largest veins in the body

IVC and SVC

107

the SVC is a large yet short vein that returns blood from ALL structures superior to diaphragm except the (2)

lungs and heart

108

SVC end at what level of ribs

3rd intercostal cartilage

109

3 main veins in the neck

external, anterior and internal jugular veins

110

the external jugular vein begins near the

angle of mandible

111

the external jugular vein begins near the angle of mandible by the union of the

posterior auricular vein and the posterior division of the retromandibular vein

112

external jugular vein drains

most of scalp and side of face

113

the largest vein in the neck

IJV

114

the IJV drains blood from the

brain, anterior face, cervical viscera, deep muscles of neck

115

the IJV starts at _ in _ cranial fossa as the direct continuation of sigmoid sinus

jugular foramen
posterior

116

the anterior jugular vein (AJV) is the smallest jugular vein and arises near the _ from the confluence of the superficial _ veins

hyoid bone
submandibular veins

117

the left and right AJV's unite across midline to form the

jugular venous arch in the suprasternal space

118

the 3 veins that drain the upper limbs are

brachial, basilic, and cephalic veins == all drain into the axillary vein --> subclavian

119

the femoral vein drains the lower limb, becomes the _ vein as it enters the trunk

external iliac vein

120

the external iliac vein is joined by the internal iliac vein from the _ to become the common iliac vein

pelvis

121

the IVC begins anterior to the _ vertebra by the union of the

L5 common iliac veins

122

the left suprarenal vein and left gonadal vein drain into the

left renal vein ==> IVC

123

the right suprarenal vein and right gonadal vein drain

directly into IVC (unlike the left side)

124

bc the facial vein and its tributaries have no valves extracranial infection in an area bounded by the bridge of the nose and the angels of the mouth (danger triangle of the face) will reach which sinus:
a. cavernous
b. sigmoid
c. inferior petrosal
d. superior petrosal

cavernous sinus

125

the danger triangle of the face

triangle covers nose and maxilla and goes up to the region bw the eyes. superficial veins communicate with the dural sinuses

126

deep facial vein is a communication bw the _ and _

facial vein and the pterygoid venous plexus

127

superior ophthalmic vein communicates anteriorly with the _ vein

angular vein

128

the supraorbital and supratrochlear veins drain the

superficial parts of scalp

129

the superficial temporal and posterior aricular veins drain the

scalp anterior and posterior to the auricles

130

the posterior auricular vein often receives a _ emissary vein from the sigmoid sinus

mastoid

131

drainage of deep parts of the scalp in the temporal region is thru the

deep temporal veins

132

which dural venous sinus lies in the convex attached border of the falx cerebri

superior sagittal sinus

133

superior sagittal sinus begins at the _ and ends near the internal occipital protuberance at the _

crista galli
confluence of sinuses

134

arachnoid granulations are found in the _ sinus

superior sagittal sinus

135

confluence of sinuses connects

superior sagittal sinus
occipital sinus
straight sinus
SOS

136

blood that reaches the confluence of sinuses will then drain into the

transverse sinus

137

the inferior sagittal sinus runs in the inferior concave free border of the falx cerebri and ends in the

straight sinus

138

the straight sinus is formed by the union of the inferior sagittal sinus with the

great cerebral vein.
runs along the line of attachment of the falx cerebri to the tentorium cerebelli

139

the cavernous sinuses are found on either side of the body of the _ bone in the _ cranial fossa

sphenoid,
middle

140

the cavernous sinus receives blood from the

sphenoparietal sinuses
and superior and inferior ophthalmic veins

141

the cavernous sinus drains blood into the

superior and inferior petrosal sinuses and emissary veins to the basilar and pterygoid plexus

142

the basilar sinus interconnects with the

inferior petrosal sinuses and the internal vertebral plexus

143

the occipital sinus communicates superiorly with the confluence of sinuses and inferiorly with the

internal vertebral plexus

144

veins have a thick tunica _ and a thin tunica _

thick tunica adventitia with little elastic tissue.
thin tunica media with few smooth muscle fibers
larger lumen and thinner walls than the arteries they accompany

145

vasa vasorum

nutrient blood vessels that supply the walls of large veins

146

verty thick tunica media and lots of elastic fibers are what vessels

large arteries

147

tunica adventitia

(or adventitia for short), is the outermost tunica (layer) of a blood vessel

148

arteries, veins and lymphatics have how many layers of tunicae?

3: intima, media, and adventitia

149

_ have both elastic and muscle fibers in their walls

arteries

150

_ have thinner walls and valves

veins

151

which are more compliant: veins or arteries

veins = means more capable of adopting their lumen size with changes in blood volume