ATI_TEAS_6_Practice_TestseTitle

ATI_TEAS_6_Practice_TestseTitle 2. B. The midsagittal plane divides the body into two equal parts. See Lesson: Organization of the Human Body. 3. B. Homeostasis is the steady, optimal condition of a human body. See Lesson: Organization of the Human Body. 4. D. When a ventricular systole occurs, the ventricle is contracting. This is associated with the QRS complex on the electrocardiogram. See Lesson: Cardiovascular System. 5. D. As blood flows out of the right atrium into the right ventricle, the tricuspid valve prevents blood from flowing back into the right atrium. See Lesson: Cardiovascular System. 6. A. A problem with excessive bleeding and slow wound healing indicates the patient is having trouble with blood clotting. Platelets are needed to facilitate blood clotting. See Lesson: Cardiovascular System. 7. A. Intercellular chemical signals that bind to membrane-bound receptors produce rapid responses. See Lesson: Endocrine System. 8. D. Neurohormones are secreted by the nervous system. See Lesson: Endocrine System. 9. D. Specificity is the characteristic that causes chemical signals to connect only to the correct receptors.