BMS 420 Exam 1 Questions With Correct
Answers
Purpose of a circulatory system - ANSWER✔✔✔-deliver nutrients and
| | | | | | | | |
remove by-products of metabolism
| | |
Single-cell organisms - ANSWER✔✔✔-Do diffusion directly with
| | | | | | |
environment, don't need a circulatory system | | | | |
What happens as diffusion distance increases? - ANSWER✔✔✔-
| | | | | | |
Pressure decreases & cells further away get their nutrients slower, and
| | | | | | | | | | |
the supply is reduced by closer cells
| | | | | |
60-40-20 rule - ANSWER✔✔✔-60% of body weight is water
| | | | | | | |
40% is found in cells
| | | |
20% is found in extracellular part
| | | | |
Fluid Movement: Sweating - ANSWER✔✔✔-Water is lost from
| | | | | | | |
extracellular compartment (interstitial), remaining interstitial fluid
| | | | | |
becomes hypertonic (inc [solute]) | | |
- water pulled from intravascular (plasma) compartment, inc plasma
| | | | | | | | |
osmolarity leads to osmotic mvmd of water from in cell to out of cell
| | | | | | | | | | | | |
,Homeostasis of cells dependent on - ANSWER✔✔✔-composition of
| | | | | | | |
interstitial fluid |
- adequate blood flow
| | |
- pressure & resistance
| | |
- minimal diffusion distances
| | |
Pulmonary circulation is (in series/parallel) with systemic circulation? -
| | | | | | | | |
ANSWER✔✔✔-in series so all of O2 rich blood can move out into | | | | | | | | | | | |
systemic circulation|
Organs arranged in (series/parallel)? - ANSWER✔✔✔-parallel so blood
| | | | | | | |
to all organs has identical composition, flow thru organs can be
| | | | | | | | | | |
controlled independently of other organs
| | | |
What influences the distribution of blood flow? - ANSWER✔✔✔-Local
| | | | | | | | |
metabolism
Constricting diameter of vessel = - ANSWER✔✔✔-decrease blood flow
| | | | | | | | |
downstream, increasing resistance | |
Veins are (conductance/resistance) vessels taking blood (to/away from)
| | | | | | | |
heart - ANSWER✔✔✔-conductance, take blood to heart
| | | | | |
, Arteries are (conductance/resistance) vessels taking blood (to/away
| | | | | | |
from) heart - ANSWER✔✔✔-conductance, away from heart
| | | | | |
arterioles are (conductance/resistance) vessels - ANSWER✔✔✔-
| | | | |
resistance
- regulate flow to peripheral organs
| | | | |
Capillary bed function - ANSWER✔✔✔-ensure that no cell is more than
| | | | | | | | | | |
10 micrometers form the capillaries
| | | |
Capillaries are the site of - ANSWER✔✔✔-exchange of nutrients and
| | | | | | | | | |
waste
Process of blood carrying substances to tissues is - ANSWER✔✔✔-
| | | | | | | | |
convective transport |
Bulk flow - ANSWER✔✔✔-all constituents of blood move together
| | | | | | | |
Rate of transport of any individual substance in blood is determined by -
| | | | | | | | | | | |
ANSWER✔✔✔--concentration of the substance
| | | |
- blood flow
| |
Answers
Purpose of a circulatory system - ANSWER✔✔✔-deliver nutrients and
| | | | | | | | |
remove by-products of metabolism
| | |
Single-cell organisms - ANSWER✔✔✔-Do diffusion directly with
| | | | | | |
environment, don't need a circulatory system | | | | |
What happens as diffusion distance increases? - ANSWER✔✔✔-
| | | | | | |
Pressure decreases & cells further away get their nutrients slower, and
| | | | | | | | | | |
the supply is reduced by closer cells
| | | | | |
60-40-20 rule - ANSWER✔✔✔-60% of body weight is water
| | | | | | | |
40% is found in cells
| | | |
20% is found in extracellular part
| | | | |
Fluid Movement: Sweating - ANSWER✔✔✔-Water is lost from
| | | | | | | |
extracellular compartment (interstitial), remaining interstitial fluid
| | | | | |
becomes hypertonic (inc [solute]) | | |
- water pulled from intravascular (plasma) compartment, inc plasma
| | | | | | | | |
osmolarity leads to osmotic mvmd of water from in cell to out of cell
| | | | | | | | | | | | |
,Homeostasis of cells dependent on - ANSWER✔✔✔-composition of
| | | | | | | |
interstitial fluid |
- adequate blood flow
| | |
- pressure & resistance
| | |
- minimal diffusion distances
| | |
Pulmonary circulation is (in series/parallel) with systemic circulation? -
| | | | | | | | |
ANSWER✔✔✔-in series so all of O2 rich blood can move out into | | | | | | | | | | | |
systemic circulation|
Organs arranged in (series/parallel)? - ANSWER✔✔✔-parallel so blood
| | | | | | | |
to all organs has identical composition, flow thru organs can be
| | | | | | | | | | |
controlled independently of other organs
| | | |
What influences the distribution of blood flow? - ANSWER✔✔✔-Local
| | | | | | | | |
metabolism
Constricting diameter of vessel = - ANSWER✔✔✔-decrease blood flow
| | | | | | | | |
downstream, increasing resistance | |
Veins are (conductance/resistance) vessels taking blood (to/away from)
| | | | | | | |
heart - ANSWER✔✔✔-conductance, take blood to heart
| | | | | |
, Arteries are (conductance/resistance) vessels taking blood (to/away
| | | | | | |
from) heart - ANSWER✔✔✔-conductance, away from heart
| | | | | |
arterioles are (conductance/resistance) vessels - ANSWER✔✔✔-
| | | | |
resistance
- regulate flow to peripheral organs
| | | | |
Capillary bed function - ANSWER✔✔✔-ensure that no cell is more than
| | | | | | | | | | |
10 micrometers form the capillaries
| | | |
Capillaries are the site of - ANSWER✔✔✔-exchange of nutrients and
| | | | | | | | | |
waste
Process of blood carrying substances to tissues is - ANSWER✔✔✔-
| | | | | | | | |
convective transport |
Bulk flow - ANSWER✔✔✔-all constituents of blood move together
| | | | | | | |
Rate of transport of any individual substance in blood is determined by -
| | | | | | | | | | | |
ANSWER✔✔✔--concentration of the substance
| | | |
- blood flow
| |
