(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Tells cells when to contract and relax
Pump blood
Natural Pacemaker
Signals from the conduction system
No
Calcium influx
Voltage remains steady
The atria contract
A burst of electricity
Sodium-potassium pumps
Right atrium
Ca²⁺ in, K⁺ out
A battery
Specialized pacemaker cells
Action potentials
Potassium leaves slightly
Generate electrical impulses
AV node
70–100
Engines
Potassium leaves
Sodium (Na⁺)
Sodium influx
SA node → AV node → Bundle of His → Purkinje fibers