Body Fluids And Circulation Question 11
Question: If heart of a mammal is injected with 2% $ CaCl_2 $ solutions, then:
Options:
A) Heart beat will increase.
B) Heart beat will first increase then decrease.
C) Heart beat will stop.
D) No effect
Show Answer
Answer:
Correct Answer: C
Solution:
Because excess of $ Ca^{++} $ will increase the force of contraction, thereby causing spasm of cardiac muscles.
BETA
