Which of the following is/are true about nodes of Ranvier? 1. No myelin 2. Rich in sodium channels
ANone of the options
BNo myelin
CBoth
DRich in sodium channels
Sequence the events in neuromuscular action potential conduction: 1. Sodium channels open in the end plate 2. Calcium enters at the nerve terminal 3. Release of acetylcholine
A$1 \rightarrow 2 \rightarrow 3$
B$1 \rightarrow 3 \rightarrow 2$
C$3 \rightarrow 2 \rightarrow 1$
D$2 \rightarrow 3 \rightarrow 1$
How many phases are there in the action potential of cardiac muscles?
A2 phases
B3 phases
C4 phases
D5 phases
+ 7 more in the PDF
Browse all chapters