(1) #1 and #2 option: a) driven by K+ efflux b) Not applicable c) Driven by Ca^2
ID: 3517600 • Letter: #
Question
(1)
#1 and #2 option:
a) driven by K+ efflux
b) Not applicable
c) Driven by Ca^2+
d) Driven by Na^+
3) and 4) option:
a. At -90 mV
b. At -70 mV
c. At -60 mV
d. At -40 mV
e. At 5 mV
f. At 15 mV
g. At 30 mV
h. Not applicable
Question 5 and 6 option
a. voltage-gated
b. Long-lasting
c. Funny
d. Transient
e. Leaky
Question 7 and 8 option
a. Not applicable
b. Driven by K^+ influx
c. Driven by Na^+ influx
d. Driven by Ca^2+
Question 9 and 10 option;
a. one type
b. two types
c. three types
d. four types
e. five types
Cardiac event Autorhythmic cells Contractile cells Falling phase of action potential(1)
(2) Peak potential (3) (4) Type of Na+ channels (5) (6) Rising phase of action potential (7) (8) Number of K+ channels (9) (10) Autorhythmic cells Contractile cells +40 +30 +20 +10 +40 +30 +20 +10 2 -10 E-20 6 -30 -10 0 ?-20 Threshold potential 3 E -60 -70 -80 -90 -40 -50 E -60 -70 -80 -90 Threshold potential 4 Time (ms) Time (ms)Explanation / Answer
1/2- k+out CA+2 in
3/4- -90mV
5-c
6d
7.d (ca+2)
8.c(Na+)
9.one type
10.one type
7.
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