1. Ch 16 Microciculation & lymphatic system

Question 1

Gas exchange and nutrient/ waste product exchange occurs btw the blood in the ____ and __

Answer 1

microcirculation and tiss

Question 2

the microcirculation also includes the ____ as they progreesively narrow

Answer 2

aterioles

Question 3

_____: terminal arterioles

Answer 3

metarterioles

Question 4

cap walls are ___ thick and highly ___ layer of endothelium

Answer 4

single celled
highly permeable layer

( surrounded by thin basement membrane)

Question 5

cap. walls are surrounded by _____ membrane

Answer 5

thin basement membrane

Question 6

__ are btw individual cells that make up the cap wall

Answer 6

pores

Question 7

nutrients are plasma fluid leaves the cap through ___

Answer 7

pores

Question 8

____& __ are to large to fit through the pores

Answer 8

blood cells & plasma proteins

Question 9

the brain has ____ type of pores

Answer 9

tight jxn

Question 10

___: is the blood flow through vessels that is not conti., it flows intermittently

Answer 10

vasomotion

Question 11

regulation of vasomotion is controlled by the ___ conc in the tis

Answer 11

O2

the conc of O2 vs CO2

Question 12

when tiss use O2 at a greater rate, O2 conc decr. causing vasomotion to occur _____

Answer 12

more often

Question 13

____ is the method of transfer of water

Answer 13

diffusion

Question 14

____: the space btw cells and contains the fluid that provides a watery enviro for cells

Answer 14

interstitial space

Question 15

_____: collective space located btw all cells in the body

Answer 15

interstitium fluid

Question 16

interstitium contains two structures

Answer 16

1. collagen fiber bundles- tensile strength

2. proteoglycen fliaments - form a mat

Question 17

_____ provide tensile strength against cells in the iinterstitium fluid

Answer 17

collagen fiber bundles

Question 18

___ are thin filaments that form a mat to provide more substance in interstitium fluid

Answer 18

proteoglycan filaments

Question 19

_____ forces determine if fluid will move out of the blood into the interstitial space (or visa versa)

Answer 19

Starling forces

Question 20

name the (4) starling force pressures

Answer 20

capillary pressure
interstitial fluid
plasma colloid osmotic pressure
Interstitial fluid colloid osmostic pressure

Question 21

____ pressure: tends to force fluid outward from the blood

Answer 21

capillary pressure

Question 22

is the sum of the starling forces is positive, there will be a ____

Answer 22

net fluid filtration

Question 23

if starling forces is negative, what will occur?

Answer 23

net fluid absorption from the plasma into the interstitial fluid

Question 24

net filtration pressure (NFP) is slightly __ under normal condition

Answer 24

positive

- result is filtration of fluid from blood to interstitual fluid

Question 25

__ system picks up the fluid that is left in interstitual space and returns it to the blood

Answer 25

lymph system

Question 26

Interstitial fluid pressure (PiF) tends to force fluid into the blood when PiF is ___ and outward when PiF is _____

Answer 26

positive

Negative

Question 27

_____: tends to cause osmosis of fluid into the blood

Answer 27

plasma collid osmotic pressure

• interstitial fluid collid osmotic pressure causes outward

Question 28

__: tends to cause osmosis of fluid outward from blood

Answer 28

interstitial fluid collid osmotic pressure

plasma collid osmotic pressure INTO blood

Question 29

lymph from the lower part of the body empty into the _____

Answer 29

thoracic duct

Question 30

the thoracic duct empties into the jx of the ____ & _____ (on the left)

Answer 30

L. internal jugular V & left subclavian V

Question 31

(on the right) where does th R. lymph duct drain?

Answer 31

R. Subclavian V

Question 32

total amt of lymph made from the interstitual fluid is ____ to ____L per day

Answer 32

2 to 3 liters per day

Question 33

______: attached to the endothelial cells of the lymphatic capillary

Answer 33

anchoring filaments

Question 34

lymph is originally derived from ____

Answer 34

interstitual fluid

Question 35

lymph circulating from all areas of the body have ___ conc

Answer 35

protein

Question 36

lymphatic vessels pick up __ from the digestive tract before they enter blood circulation

Answer 36

nutrients

Question 37

__ can enter the lymph vessels, but are destroyed

Answer 37

bacteria

Question 38

name 3 external pumps of lymph

Answer 38

1. contraction of M
2. pulsation of adjacent art.
3. movement of body parts