Answer:
Option (B).
Explanation:
Heart is the main pumping organ of the body. The human heart is divided into four chambers that are right atria, right ventricles, left atria and left ventricles.
The left and right ventricles can easily be distinguished on the basis of their thickness. The right ventricle is less thicker than left ventricle. The thickness of right ventricle is 9mm whereas the thickness of left ventricle is around 40mm.
Thus, the correct answer is option (B).
Answer:
neurotransmitter is released
Explanation:
A neuromuscular junction is defined as the chemical synapse between a muscle fiber and the motor neuron. When the neuromuscular junction are put into a sequence, the third event is released of the transmitter. The action potential depolarizes the terminal membrane
rushes in releasing the neurotransmitter.
<u>Answer:</u> A. Pluripotent
Reasoning: Brain stem cells can only make different types of brain cell