Pathway of blood through the heart is described below.
Explanation:
1.Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart.As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.
2. Blood enters the right atrium from the superior and inferior venae cavae,
and the coronary sinus.
From right atrium, it goes through the tricuspid valve to the right ventricle.
From the right ventricle, it goes through the pulmonary semilunar valves to the pulmonary trunk
3. From the pulmonary trunk it moves into the right and left pulmonary
arteries to the lungs.
From the lungs, oxygenated blood is returned to the heart through the pulmonary veins.
4. From the pulmonary veins, blood flows into the left atrium.
From the left atrium, blood flows through the bicuspid (mitral) valve into the left ventricle. From the left ventricle, it goes through the aortic semilunar valves into the
ascending aorta.
Blood is distributed to the rest of the body (systemic circulation) from the aorta
False, crossover designs are not most useful when the underlying intensity of disease has substantial within-person variability, such as larger seasonal changes.
<h3>When is crossover designs most useful?</h3>
A crossover design is a repeated measurements design such that each experimental unit receives different treatments during the different time periods.
That is the patients cross over from one treatment to another during the course of the trial.
Thus, crossover designs are not most useful when the underlying intensity of disease has substantial within-person variability, such as larger seasonal changes.
Learn more about crossover designs here: brainly.com/question/28039233
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1 It gives the body its shape
2allows movement,
3makes blood cells,
4provides protection for organs
5stores minerals.
What holds bones together is Ligaments: Bands of strong connective tissue called ligaments hold bones together. Tendons: Tendons are bands of tissue that connect the ends of a muscle to your bone.
What attaches muscles to bones is tendons attach muscles to bones. The tendon pulls the bone, making it move.
