BIOL 215 Human Anatomy & Physiology II FINAL EXAM READINESS QUESTIONS & ANSWERS

BIOL 215 Human Anatomy & Physiology II FINAL EXAM READINESS QUESTIONS & ANSWERS

1. Multiple Choice: Which of the following hormones is
primarily responsible for the regulation of plasma calcium
concentration?
 a) Parathyroid hormone
 b) Thyroxine
 c) Insulin
 d) Glucagon
 Correct Answer: a) Parathyroid hormone
 Rationale: Parathyroid hormone increases plasma
calcium levels by stimulating osteoclasts to release calcium
from bones, increasing intestinal calcium absorption, and
decreasing renal calcium excretion.
2. Fill-in-the-Blank: The ________ valve prevents backflow
of blood into the left atrium.
 Correct Answer: Mitral
 Rationale: The mitral valve, also known as the bicuspid
valve, is located between the left atrium and left ventricle
and prevents the backflow of blood during ventricular
contraction.
3. True/False: The sinoatrial node is the primary pacemaker
of the heart.
 Correct Answer: True
 Rationale: The sinoatrial node sets the pace for the heart
rate by generating electrical impulses that propagate
throughout the heart muscle, initiating contraction.
4. Multiple Response: Select all that apply. Which of the
following are functions of the liver?
 a) Production of bile

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