Card Set Information
human a & p 1
an inhibitory local potential
hyperpolarizes the plasma membrane.
Which of the following will cause the plasma membrane to hyperpolarize when its at RMP?
inflow of chloride
while the membrane is depolarizing its
sodium gates are fully open
potassium ions are leaving the cell
tendeinous intersection divides the _____ into segments, externally visible on the abdomen of well-musculed person
what term best describes the relationship between the prenator quadratus and supinator
abduction is the movement of the body part
away from the midline of the body
Dystrophin, the protein that is defected in muscular dystrophy, is normally found
between the outermost myofilaments and the sarcolemnae of the muscle filament
Release of Ach @ neuromuscular junction ---
increases permeability of the sarcolemma to sodium
What is the purpose of the triad?
Allows forcalcium release when muscle fiber is excited
Term for shortening muscle with maintaining
If one nerve stimulus arrives at muscle fiber has only one partially relaxed from previous twitch, most likely result will be
Stimulate muscle contraction Ach released from ________ into synaptic cleft.
Absence or inhibition of AChE at a synapse would
lead to ….
Michael Jordan, Best NBA player has highly
Where would you find numerous gap junctions in
Intercalated discs of cardiac muscle
High altitude athletes increase red blood cells
count and thus increase oxygen supply during exercise increased oxygen supply
results in …
longer aerobic respiration
Contraction of smooth muscle …
alternating light and dark
thick myofilments are made of
myosin and actin
when voltage pm is +35 to 0
structures meet at neuromuscular junction
opening of the sodium gate leads to
skeltal muscle contract due to 1st message from
main function of Ca ion in skeletal muscles
relaxed muscle fiber is blocked by