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Question

View History Bookmarks People Window Help xvE] Quiz: Unit 09 Lecture Exam ? Unit 06 Lecture Quiz: BIO-173 X vW Unit08 Lecture Quiz: Bio x s:/iowacconline.instructure.com/courses/17981/quizzes/150189/take Question 1 The heart depolarizes and contracts without nervous stimulation although it cannot alter its rhythm without input from the autonomic nervous system. True False Question 2 As the ventricles go from systole to diastole, the diameters of their chambers 0 increase 0 do not change in size O decrease D Question 3 Which of the choices below reflects the balance (or imbalance) between the direction and amount of fuld that fows across the capillary walls? hydrostatic and osmotic pressure o hydrostatic pressure only blood volume and viscosity 0 plasma and formed element concentration Question 4 Blood is pumped indo which of these vessels during ventricular systole? Both a and b are correct

Explanation / Answer

1. True.

Heart can depolarise without inputs from brain as signal originates through sinoatrial node while rythm is changed via the sympathetic and parasympathetic innervation.

2. As the ventricles go from systole to diastole ,there is

Increase in diameter of its chambers

3. A. Both hydrostatic and osmotic colloid pressure reflects the direction and amount of fluid between capillary walls.

4. Blood is pumped during systole in

D. Both a and b is correct

The left ventricle pump blood in the aorta while the right in pulmonary artery.

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