Chapter 20 - Blood Vessels Flashcards

Question

Fenestrated capillaries

Answer 1

Have pores that span the endothelial cells

Answer 2

``` Take blood TOWARD the heart Low pressure vessels More superficial location than arteries less smooth muscle than arteries Thinner walls than arteries ```

Answer 3

Valves Body Movement Muscular Pump Venous Vasoconstriction

Answer 4

Blood flow toward heart pushes cusps apart, and backflow pushes cusps together

Answer 5

simply moving the body moves blood

Answer 6

skeletal muscles press against veins

Answer 7

possible, but not the same as in arteries

Answer 8

Where vessels unite or interconnect Arterial anastomoses provide collateral channels Venous anastomoses more abundant

Answer 9

Little vessels (tiny arteries, capillaries, veins) that supply larger arteries and veins with nutrients Feeds outer half of vessel - located in tunica externa Luminal blood feed inner half SMall vessels get full supply from luminal blood

Answer 10

Artery that takes blood to the lungs, branches in to right and left pulmonary arteries

Answer 11

``` Each pulmonary artery branches into lobar arteries, which branch smaller and smaller until they are capillaries Pulmonary Veins (4 of them, 2 from each lung) bring blood back to the heart Pulmonary trunk ```

Answer 12

Arteries Aorta -ascending (R & L Coronary Arteries) -arch (Brachicephlic trunk (right common carotid, right subclavian), Left common carotid, left subclavian) -descending (thoracic aorta, abdominal aorta (right common iliac, left common iliac))

Answer 13

R & L coronary Arteries

Answer 14

Brachiocephalic trunk - right common carotid, right subclavian Left common carotid Left subclavin

Answer 15

Thoracic aorta | Abdominal aorta - right common iliac, left common iliac

Answer 16

``` Subclavian Axillary Brachial Radial Ulnar Palmar Arches ```

Answer 17

Underlies clavicle

Answer 18

Supplies breast, should, scapular areas

Answer 19

Supplies anterior & posterior arm muscles

Answer 20

Supplies lateral forearm

Answer 21

supplies medial forearm

Answer 22

superficial and deep | supplies hand

Answer 23

``` Common Iliac Arteries Internal Iliac Artery External Iliac Artery Femoral Artery Popliteal Artery Anterior Tibial Artery Posterior Tibial Artery ```

Answer 24

Supplies pelvic region

Answer 25

Goes to lower limbs

Answer 26

Supplies thigh muscles

Answer 27

Supplies knee

Answer 28

Supplies crural region

Answer 29

Supplies sural region

Answer 30

``` Differences in Artery & Vein Distributions Superior Vena Cava Brachiocephalic veins Internal Jugular Subclavian External Jugular Coronary Sinus Inferior Vena Cava Common Iliac Veins ```

Answer 31

1 artery leaves LV, 3 veins enter RA Arteries are deep, veins are mostly superficial Usually have several parallel veins rather that 1 large vein 2 unusual venous drainage areas in body: dural sinuses, hepatic portal system

Answer 32

Receives blood from body regions superior and diaphram (except heart) Formed by L and R Brachiocephalic veins

Answer 33

Formed by internal jugular and subclavian

Answer 34

Receives blood from upper limb

Answer 35

Receives blood from scalp and parts of face

Answer 36

Drains blood that supplies heart muscle

Answer 37

Returns blood from all areas inferior to diaphragm | Formed by union of common iliac veins

Answer 38

Returns blood from lower limbs

Answer 39

``` Palmar Arches Radial Vein Ulnar Vein Brachial Vein Axillary Vein Cephalic Vein Basilic Vein Subclavian Vein ```

Answer 40

deep and superficial | receive blood from hand

Answer 41

joins axillary vein

Answer 42

joins brachial vein at start of axillary vein

Answer 43

``` Anterior Tibial Vein Posterior Tibial Vein Popliteal Vein Femoral Vein External Iliac Vein Internal Iliac Vein Common Iliac Vein Great Saphenous Vein ```

Answer 44

Empties into inferior vena cava

Answer 45

empties into femoral vein form medial lower leg

Answer 46

``` Hemorrhoids Deep vein thrombosis Varicose Veins Aneurysm Arteriosclerosis ```

Answer 47

Blood pooling in veins of anal canal

Answer 48

Clot formation in vein of lower extremity which travels and blocks flow in another vessel

Answer 49

Faulty venous valves cause blood pooling | Common in obesity and pregnancy

Answer 50

Saclike widening of a vessel increasing risk of rupture | Very dangerous in brain

Answer 51

Pathological thickening and loss of elasticity Medial Arteriosclerosis Atherosclerosis

Answer 52

Occurs with age | Smooth muscle and elastin replaced with fibrous tissue

Answer 53

Occurs in Tunica Intima Initially caused by entrance of LDL into intimal layer which eventually causes plaque formation Eventually thrombosis forms and can block arteries Best prevention is low-fat diet and exercise