consider the equation F=P/R
it describes the flow (F) of fluid in a tube in which there is a pressure difference (P)
between the two ends and a resistance (R) to flow. Based on this equation, which is a
correct conclusion?
Give this one a try later!
the rat of fluid flow in a tube will increaseif the pressur at the beginning is
increased while the pressure at the end of the tube stays the same
,41. Which of the following statements is FALSE?
A. Synaptic input onto skeletal muscle cells is always excitatory, whereas inputs to
smooth muscle cells may be either excitatory or inhibitory.
B. A single smooth-muscle cell may be innervated by both a sympathetic neuron and
a parasympathetic neuron.
C. Contractile activity of smooth-muscle cells does not normally require Ca2+.
D. In the absence of any neural input, skeletal muscle cannot generate tension.
Give this one a try later!
C. Contractile activity of smooth-muscle cells does not normally require
Ca2+.
which is an accurate description of the posterior pituitary and its functions?
Give this one a try later!
it is neural tissue, and vesicles containing oxytocin and vasopressin are
transported to axon termials there
which organ system is responsible for the exchange of carbon dioxide and oxygen
and regulation of hydrogen ion concentration?
a) respiratory
b) digestive
c) cariovascular
d) lymphatic
e) endocrine
,Give this one a try later!
a) respiratory
when two EPSPs produced by the same pre-synaptic neuron occur close enough
togherer to inreas the magnitude of the resulting depolarization this is known as ____.
a) spatial summation
b)tetanus
c)treppo
d)temporal summation
Give this one a try later!
d)temporal summation
____is the movement of solute particles from high concentration to low concentration
until equilibrium
a) diffusion
b) osmosis
Give this one a try later!
a) diffusion
what protein is the principle component of skeletal muscle thick filaments?
Give this one a try later!
, myosin
Which of the following most accurately describes the renal transport of Na+?
A) Na+ is actively transported in all segments of tubule
b) primary above transport of Ba+ allows for secondary active transport of glucose
and H+ in the proximal tubule
c) most of the Na+ transport occurs in the distal convoluted tubule and collecting
ducts
d) Na+ is actively severed into the Neptune lumen by cells in the cortical collecting
ducts
Give this one a try later!
b) primary above transport of Ba+ allows for secondary active transport of
glucose and H+ in the proximal tubule
which is true abbout the pleural sac
a)it is continuous with the atmosphere and protects the lungs from infections
b) it is a closed sac surrounding each lung and contains only a tiny volume of
lubricating fluid
c) it is a closed sac surrounding each lung and contain a large volume of surfactact
d) it is a closed, air-filled space surrounding both lungs that has a negative pressure
compared to atmospheric pressure
Give this one a try later!
b) it is a closed sac surrounding each lung and contains only a tiny volume
of lubricating fluid
it describes the flow (F) of fluid in a tube in which there is a pressure difference (P)
between the two ends and a resistance (R) to flow. Based on this equation, which is a
correct conclusion?
Give this one a try later!
the rat of fluid flow in a tube will increaseif the pressur at the beginning is
increased while the pressure at the end of the tube stays the same
,41. Which of the following statements is FALSE?
A. Synaptic input onto skeletal muscle cells is always excitatory, whereas inputs to
smooth muscle cells may be either excitatory or inhibitory.
B. A single smooth-muscle cell may be innervated by both a sympathetic neuron and
a parasympathetic neuron.
C. Contractile activity of smooth-muscle cells does not normally require Ca2+.
D. In the absence of any neural input, skeletal muscle cannot generate tension.
Give this one a try later!
C. Contractile activity of smooth-muscle cells does not normally require
Ca2+.
which is an accurate description of the posterior pituitary and its functions?
Give this one a try later!
it is neural tissue, and vesicles containing oxytocin and vasopressin are
transported to axon termials there
which organ system is responsible for the exchange of carbon dioxide and oxygen
and regulation of hydrogen ion concentration?
a) respiratory
b) digestive
c) cariovascular
d) lymphatic
e) endocrine
,Give this one a try later!
a) respiratory
when two EPSPs produced by the same pre-synaptic neuron occur close enough
togherer to inreas the magnitude of the resulting depolarization this is known as ____.
a) spatial summation
b)tetanus
c)treppo
d)temporal summation
Give this one a try later!
d)temporal summation
____is the movement of solute particles from high concentration to low concentration
until equilibrium
a) diffusion
b) osmosis
Give this one a try later!
a) diffusion
what protein is the principle component of skeletal muscle thick filaments?
Give this one a try later!
, myosin
Which of the following most accurately describes the renal transport of Na+?
A) Na+ is actively transported in all segments of tubule
b) primary above transport of Ba+ allows for secondary active transport of glucose
and H+ in the proximal tubule
c) most of the Na+ transport occurs in the distal convoluted tubule and collecting
ducts
d) Na+ is actively severed into the Neptune lumen by cells in the cortical collecting
ducts
Give this one a try later!
b) primary above transport of Ba+ allows for secondary active transport of
glucose and H+ in the proximal tubule
which is true abbout the pleural sac
a)it is continuous with the atmosphere and protects the lungs from infections
b) it is a closed sac surrounding each lung and contains only a tiny volume of
lubricating fluid
c) it is a closed sac surrounding each lung and contain a large volume of surfactact
d) it is a closed, air-filled space surrounding both lungs that has a negative pressure
compared to atmospheric pressure
Give this one a try later!
b) it is a closed sac surrounding each lung and contains only a tiny volume
of lubricating fluid
