20.3 Short Answer Questions
1) The ________ pulse can be palpated near the temple anterior to the auricle of the ear.
2) The ________ artery descends along the arcuate line of the ilium and passes below the inguinal ligament.
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) ________.
4) The ________ vein descends through the transverse foramina of the first six cervical vertebrae.
5) Capillaries that allow a high degree of flow between the blood and tissue fluid usually have pores called ________ in their membranes.
6) The blood-brain barrier consists of capillaries with complete ________ and no intercellular clefts.
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.
8) The largest blood vessels near the heart have their own blood supply network called the ________.
9) The ________ branches to form the right subclavian and right common carotid arteries.
10) Cirrhosis of the liver causes backup of blood in the sinusoids, resulting in a condition known as ________ hypertension.
11) 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.
12) Venous blood from the hands can be drained towards the heart through the radial, ulnar, median, cephalic, and ________ veins.
13) ________ channels, also known as arterial anastomoses, provide alternative pathways of blood to joints.
14) Blood flow to the posterior brain follows the following sequence: subclavian artery, vertebral artery, ________, posterior cerebral arteries.
15) Veins with compromised valves are called ________ veins.