Answer:
Some causes can be heart disease, cancer, lung ailments, accidents, cirrhosis of the liver.
Answer:
This electrical signal start in the sinoatrial node generates an electrical impulse. From this, the signal passes through the atrioventricular node, which stops the signal for a brief moment and sends it through the muscle fibers of the ventricles, stimulating its contraction.
Explanation:
The electrical impulses generated by the myocardium stimulate the heartbeat. This electrical signal originates in the sinoatrial node located in the upper part of the right atrium. When the sinoatrial node generates an electrical impulse, it stimulates the contraction of the atria. From this, the signal passes through the atrioventricular node, which stops the signal for a brief moment and sends it through the muscle fibers of the ventricles, stimulating its contraction.
Answer:
D. a head injury
Explanation:
She wouldn't have been conscious if she had a head injury
Do sit-ups they are challenging and fun
The Ovaries hold the females infertile eggs, and the Fallopian tubes carry the eggs to the uterus, which is where the offspring is conceived.
