Cardiovascular System: Blood Vessels

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Human Anatomy
Chapter 22
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1

The ________ pulse can be palpated near the temple anterior to the auricle of the ear.

temporal

2

The ________ artery descends along the arcuate line of the ilium and passes below the
inguinal ligament.

external iliac

3

In a capillary bed, blood enters by a terminal arteriole, continues through a metarteriole, and
exits to a venule by means of a(n) ________.

thoroughfare channel

4

The ________ vein descends through the transverse foramina of the first six cervical
vertebrae.

vertebral

5

Capillaries that allow a high degree of flow between the blood and tissue fluid usually have
pores called ________ in their membranes.

fenestrations

6

The blood-brain barrier consists of capillaries with complete ________ and no intercellular
clefts.

tight junctions

7

The presence of ________ in the veins and the action of skeletal muscle pressing on the walls
ensure that blood return to the heart is in one direction.

valves

8

The largest blood vessels near the heart have their own blood supply network called the
________.

vasa vasorum

9

The ________ branches to form the right subclavian and right common carotid arteries.

brachiocephalic trunk

10

Venous blood from the right posterior intercostal veins (except the first intercostal space)
flows to the unpaired ________ vein and on to the superior vena cava.

azygos

11

Venous blood from the hands can be drained towards the heart through the radial, ulnar,
median, cephalic, and ________ veins.

basilic

12

________ channels, also known as arterial anastomoses, provide alternative pathways of
blood to joints.

collateral

13

Blood flow to the posterior brain follows the following sequence: subclavian artery, vertebral
artery, ________, posterior cerebral arteries.

basilar artery

14

Veins with compromised valves are called ________ veins.

varicose