Part 1 CHAPTER 21 STUDY GUIDE

Question 1

Using fig. 21-4 be able to explain the organization of a capillary bed.

Answer 1

Note red is blood coming from arteries. BLUE IS BLOOD COMING FROM VEINS
Solid arrows indicate consistence blood flow, dash arrow indicate variable opposing blood flow
Start from left. Collateral = more than one artery
Collateral artery is connecting to the MET Arteriols, or the Met arteries leading into the capillaries
The capillaries take blood from to the small venules
The venules take blood flow to the Venule
Venule to the veins

Question 2

What causes Aneurysms

Answer 2

is a bulging, weak area in the wall of an artery

Exceed the capacity of the elastic components of Tunica

Question 3

Two things that you learned in this class that makes Capillaries unique 
             From arteries and veins.

Answer 3

1. Capillaries do not have Tunica Media, nor Tunica External

2. Capillaries are the only blood vessels whose walls permit exchange

Question 4

Names of two major types of Capillaries

Answer 4

1. CONTINUOUS CAPILLARIES

2. FENESTRATED CAPILLARIES

Question 5

MUSCULAR ARTERIES ARE ALSO KNOW AS

PROVIDE EXAMPLES

Answer 5

DISTRIBUTION CAPILLARIES THE LUMEN DIAMETER 0.4 CM OR 0.16 inches Medium size
Examples: External carotid arteries of the neck
Brachial artery of the arm
Mesenteric arteries of the abdomen

Question 6

Another name for Distribution arteries?

Answer 6

Muscular arteries

Question 7

TWO MAJOR FORMS OF ARTERIOSCLEROSIS ARE?

Answer 7

1, FOCAL CALCIFICATION: DEPOSITION OF CALCIUM SALTS

     2. ATHEROSCLEROSIS: FATYY DEGENERATION

Question 8

THE DIFFERENCE BETWEEN VASOCONSTRICTION AND VASODILATION?

Answer 8

VASOCONSTRICTION: SOMETHING IS WRONG WITH THE BLOOD

    VASODILATION: OPEN UP VESSEL INCREASE IN DIAMETER OF ARTERIOLES DUE TO 
     RELAXATION.

Question 9

THE THREE DISTINCT LAYERS OF YOUR ARTERY WALL AND VEINS?

Answer 9

1. TUNICA INTIMA (INSIDE)
   2. TUNICA MEDIA (MIDDLE)
   3. TUNICA EXTERNAL ( NEAREST TO OUTSIDE)

Question 10

IF ALL THE CAPILLARIES IN MY BODY WERE PLACED END TO END.

KNOW THEIR COMBINED LENGTH IN MILES.

Answer 10

MORE THAN 25,000.00 MILES

Question 11

THE FIVE GENERAL CLASSES OF BLOOD VESSELS ARE?

Answer 11

1. ARTERIES
   2. ARTERIOLES
   3. CAPILLARIES
   4. VENULES
   5. VEINS

Question 12

THE MEANING OF THE TERMS: ARTERIAL ANASTOMOSIS

AND ANGIOGENESIS

Answer 12

ARTERIAL ANASTOMOSIS : THE JOINING OF BLOOD VESSELS

                ANGIOGENESIS:  THE FORMATION OF NEW BLOOD VESSELS

Question 13

THE DIFFERENCE BETWEEN SYSTOLIC PRESSURE /DIASTOLIC PRESSURE

AND HYPERTENSION/ HYPOTENSION.

Answer 13

1. SYSTOLIC PRESSURE: THE PEAK OF BLOOD PRESSURE DURING VENTRICULAR SYSTOLE
2. DIASTOLE PRESSURE: THE MINIMUM BLOOD PRESSURE AT THE END OF VENTRICULAR
   DIASTOLE
3. HYPERTENSION: ABNORMALLY HIGH BLOOD PRESSURE
4. HYPOTENSION: ABNORMALLY LOW BLOOD PRESSURE

Question 14

THE NAMES OF TWO LOCAL VASODILATORS

Answer 14

A. LACTID ACID
B. NITRIC OXIDE (NO)
C. ELEVATED LOCAL TEMPERATURE
D. DECREASE TISSUE OXYGEN LEVELS OR INCREASE CO2 levels