A blood vessel seen under the microscope has a tunica intima that is 10 ?m thick, a tunica media that is 100 ?m thick, and a tunica adventitia that is 40 ?m thick. Which type of blood vessel is this?
a. Capillary
b. Muscular artery
c. Sinusoid
d. Venule
e. Vein
ANS: B
The tunica media of a muscular artery is typically the thickest layer of the vessel.
You might also like to view...
Which of the following represents the overall reaction for aerobic respiration?
A. C6H12O6 + 6 H2O ? 6 CO2 + 6 O2 B. C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O C. 6 CO2 + 6 H2O ? C6H12O6 + 6 O2 D. 6 O2+ 6 H2O ? C6H12O6 + 6 CO2 E. C6H12O6 + 6 CO2 ? 6 O2 + 6 H2O
The great cardiac vein runs alongside the
A. anterior interventricular artery. B. posterior interventricular artery. C. right marginal artery. D. coronary sinus. E. aorta.
Degeneration of the neurons in which of the following structures leads to the muscle tremors associated with Parkinson disease?
A. Cerebral crus B. Inferior colliculi C. Pons D. Tegmentum E. Substantia nigra
Capillaries are connected to veins by ____
a. venules b. bronchioles c. arterioles d. lymphatics