Cardio Exam

Question 1

Cells of endothelium

Answer 1

simple squamous

Question 2

Main function of endothelium

Answer 2

permeability

Question 3

Connective tissue consists of (2)

Answer 3

collagen and elastic fibers

Question 4

Separates tunica intima from tunica media

Answer 4

Internal elastic membrane

Question 5

Separates tunica media from tunica adventitia

Answer 5

External elastic membrane

Question 6

Nerves innervating blood vessels

Answer 6

Nervi vasorum

Question 7

Contain von Willebrand factor

Answer 7

Weibel-Palade bodies

Question 8

Von Willebrand factor is important for

Answer 8

hemostasis

Question 9

Main component of tunica media of elastic arteries

Answer 9

Elastin

Question 10

Main component in tunica media of muscular arteries

Answer 10

smooth muscle

Question 11

Principal component of peripheral resistance to blood flow

Answer 11

Arteriole

Question 12

Plays important role in regulating blood flow and thermoregulation

Answer 12

Arteriovenous Anastamoses

Question 13

Compensatory mechanism of carotid sinus

Answer 13

Vasoconstriction of vessels

Question 14

Cells of carotid bodies

Answer 14

Glomus and Sheath cells

Question 15

Contain secretory granules containing dopamine

Answer 15

Glomus cells (Type I)

Question 16

Supporting cells that surround the glomus

Answer 16

Sheath cells (Type II)

Question 17

Special cells that can be found outside of the capillary

Answer 17

Pericytes

Question 18

Primary process of pericytes are arranged

Answer 18

Longitudinally

Question 19

Secondary process of pericytes are arranged

Answer 19

circumferentially

Question 20

Function of pericytes

Answer 20

Control blood flow through the microvasculature

Question 21

Fenestrated capillaries are found in (4)

Answer 21

endocrine gland, kidney glomerulus, GI tract, pancreas

Question 22

Continuous capillaries are found in (4)

Answer 22

muscle, connective tissue, brain, lungs

Question 23

Sinusoidal or discontinuous capillaries found in (3)

Answer 23

lymphatic organs, liver, spleen

Question 24

Preferential site for migration of leukocytes from blood into the tissues

Answer 24

Postcapillary venules

Question 25

Valves in veins are found in

Answer 25

Medium-sized veins

Question 26

Intervening vessel for hepatic and hypophyseal portal systems are

Answer 26

Veins

Question 27

Intervening vessel for renal portal systm is

Answer 27

Artery

Question 28

Purkinje fibers are in what layer (heart)

Answer 28

Subendocardial layer

Question 29

Thickest layer of the heart layers

Answer 29

Myocardium

Question 30

Myocardium consists of ____ cells

Answer 30

Cardiac muscle

Question 31

Atrium secretes the hormone

Answer 31

atrial natriuretic polypeptide (ANP)

Question 32

Where normal rhythmical impulse is generated

Answer 32

Sinus node

Question 33

Conduct the impulse from the sinus node to te AV node

Answer 33

Internodal pathways

Question 34

Impulse from atria is delayed before passing into ventricles

Answer 34

AV node

Question 35

Conducts the impulse from atria into ventricles

Answer 35

AV bundle/Bundle of His

Question 36

Conduct the cardiac impulse to all parts of the ventricles

Answer 36

Left and right branches of Purkinje fibers