Answer:
Intrinsic conduction system of the heart consists of the passage of the electrical impulse from the atrial node to the purkinje fiber system, to produce ventricular contraction.
Explanation:
The heart's electrical conduction system allows the heart to fulfill its blood-pumping functions through the alternating movements of contraction and relaxation of its musculature.
- The nerve impulse begins in the sinoatrial node (SA), located at the top of the right atrium. This produces the atrial contraction to pass the blood from the atria to the ventricles.
- From the SA, the impulse travels to the atrial-ventricular node (AV), located in the interventricular septum.
- In AV, the impulse is briefly delayed and then transmitted to the His bundle (HB), until the HB splits into a right and a left branch. The left branch is divided into three fascicles: anterior, middle and posterior.
- Finally, from each branch and its fascicles originate the Purkinje fibers, which are introduced into the heart muscle and produce - when the nerve impulse arrives - the contraction of both ventricles, and the exit of blood from their cavities.
This series of steps is responsible for the heart being able to pump blood throughout the body.
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Intrinsic conduction system of the heart brainly.com/question/4106983
Answer:
Touchdown
Explanation:
If you have a ref biased for the other team there could be and unsportsmanlike conduct penalty on the spiking of the ball.
Prescription drug abuse has increased dramatically among college students over the past 10 years is false
<h3>
What population is most affected by addiction?</h3>
Substance use disorders, often known as drug addiction and alcohol use disorder, affect millions of people across the country and cost billions of dollars in health-care expenditures and lost productivity each year. Drug abuse can involve the use of alcohol, marijuana, opioids, methamphetamine, stimulants, and other drugs. Drug abuse can also involve the misuse of both prescription and over-the-counter pain medicines, as well as illegal narcotics. The National Center for Drug Abuse Statistics (NCDAS) produced the following data on substance use disorders and health in the United States
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While ice skating, Alice slipped and injured her knee. What is one way Alice might have prevented this injury?
a. by resting periodically to maintain her strength (incorrect, accidents can still happen).
b. by learning to skate better so she can be more careful (through the learning process, she is bound to fall again.)
c. by wearing safety equipment appropriate to the activity (Correct. When practising skating, falls are bound to happen, thus safety equipment needed)
