BLOOD VESSELS PT. 1

Question 1

contribute to homeostasis by providing the structures for the flow of blood
to and from the heart and the exchange of nutrients and wastes in tissues. They also play
an important role in adjusting the velocity and volume of blood flow.

Answer 1

blood vessels

Question 2

The five main types of blood vessels are

Answer 2

arteries, arterioles,
capillaries, venules, and veins

Question 3

carry blood away from the heart to other organs. Large,
elastic arteries leave the heart and divide into medium- sized,
muscular arteries that branch out into the various regions of
the body.

Answer 3

arteries

Question 4

Medium- sized arteries then divide into small arteries,
which in turn divide into still smaller arteries called

Answer 4

arterioles

Question 5

As the arterioles enter a tissue, they branch into
numerous tiny vessels called

Answer 5

blood capillaries/ capillaries

Question 6

The thin walls of capillaries
allow the exchange of substances between the blood and body
tissues. Groups of capillaries within a tissue re unite to form
small veins called

Answer 6

venules

Question 7

The thin walls of capillaries
allow the exchange of substances between the blood and body
tissues. Groups of capillaries within a tissue re unite to form
small veins called ___. They are the blood vessels that convey blood from the
tissues back to the heart.

Answer 7

veins

Question 8

refers to the growth of new blood vessels. It is an
important process in embryonic and fetal development, and in
postnatal life serves important functions such as wound heal
ing, formation of a new uterine lining after menstruation, for
mation of the corpus luteum after ovulation, and development
of blood vessels around obstructed arteries in the coronary cir
culation. Several proteins (peptides) are known to promote and
inhibit angiogenesis.

Answer 8

angiogenesis

Question 9

Clinically angiogenesis is important because cells of a
malignant tumor secrete proteins called