PBM Reading Exam 1

Question 1

Hydrostatic pressure

Answer 1

pressure at any point in a column of liq

pressure difference b/w that point and the top of the column

Question 2

Flow

Answer 2

vol of fluid moving through vessel per unit time

Question 3

transmural

Answer 3

across the wall (transmural pressure)

Question 4

compliance

Answer 4

ability to stretch in response to an inc transmural pressure difference (AKA distensibility)

Question 5

Elastance

Answer 5

inverse of compliance
resistance to stretch when the transmural pressure difference inc or as the ability of a vessel to return to its original vol after the inc transmural pressure diff is removed

Question 6

Pressure

Answer 6

force per unit area

Question 7

Potentiation

Answer 7

When one substance augments the response to another substance even though the first substance does not exert a significant response on its own (announcer)

Question 8

Anticholinesterases

Answer 8

Combine w AchE and prevent hydrolysis of Ach

Question 9

Botulism

Answer 9

Endopeptidases–enter cell, cleave synaptobrevin, prevent NT release

Question 10

Bungarotoxin

Answer 10

Binds AchRs irreversibly and prevents their opening

Question 11

Myasthenia gravis

Answer 11

Autoimmune

Destroy AchRs

Question 12

Lambert-Eaton syndrome

Answer 12

Autoimmune

Reduces Ca channels in pre synaptic terminal

Question 13

D-tubocurare

Answer 13

binds AchR reversible and prevents Ach from opening the channels