Answer and Explanation:
The cardiac cycle throughout mammals consists of four main different steps of activity:
- Isovolumic relaxation: During which the AV valve is locked, the Semi-Lunar valves are closed. One such stage consists of a ventricular contraction.
- Inflow Stage: And the same for atrial systole, and during that blood going back to the heart circulates via the atria to comfortable ventricles (left or right). AV valve remains located as well as the semi-lunar valve does seem to be inaccessible. The whole stage is known as the ventricular filling venue.
- Isovolumic contraction: Both the AV valve as well as the Semi-lunar valve remain sealed or disabled. AV Valve decides to close at either the final moment including its ventricular, this same blood circulation slows down the ventricle from contracting.
- Ventricular Ejection stage: This valve seems to be closed as well as the Semi-lunar valve is accessible. Ventricles or even blood need to circulates from the heart and lungs to the tissues as well as to the surrounding tissue or human body.
Answer:
Concepts are mental categories used to group objects, events, and characteristics.
Explanation:
A concept is an idea created in the mind of an individual. To develop the concept, there are many things that one needs to possess. For instance, when children are growing up, they need support that will help them establish an ideal concept while still young.
Everything that is instilled in the made of a child will play an essential role as they grow. It transforms into a concept, therefore, teaching positive and construction ideas are the best way of developing great thoughts in the future.
Answer:
A.
Explanation:
I'm pretty sure it's supposed to be Augustus just based on the limited amount the question gives. He is the one that established the longest era of peace in Rome.
A.its true it’s just common sense
