which structure in the kidney is responsible for filtering blood

HESI A2

Quizlet HESI A2 Anatomy and Physiology

1. Which structure in the kidney is responsible for filtering blood?

A. Glomerulus
B. Bowman's capsule
C. Loop of Henle
D. Collecting duct

Correct answer: A

Rationale: The glomerulus is the correct answer. It is a vital structure in the kidney responsible for filtering blood. The glomerulus is a network of capillaries that filters waste products and excess substances from the blood to form urine. While the Bowman's capsule, Loop of Henle, and Collecting duct are also essential components of the nephron, the primary site of blood filtration occurs at the glomerulus. The Bowman's capsule surrounds the glomerulus and collects the filtered fluid, the Loop of Henle reabsorbs water and important ions, and the Collecting duct further concentrates the urine, but none of these structures are primarily responsible for filtering blood as the glomerulus is.

2. What happens during the S phase of the cell cycle?

A. Chromosomes are duplicated.
B. Cell growth occurs.
C. DNA is synthesized.
D. DNA is destroyed.

Correct answer: A

Rationale: During the S phase of the cell cycle, chromosomes are duplicated. This is a critical step in cell division as each chromosome is replicated to ensure that the resulting daughter cells receive an identical set of genetic information. Choices B, C, and D are incorrect because cell growth primarily occurs in the G1 phase, DNA synthesis happens during the S phase, and DNA destruction does not occur during any phase of the cell cycle.

3. If a doctor has an EXEMPLARY record, her work is ______

A. Ordinary
B. Praiseworthy
C. Disappointing
D. Confusing

Correct answer: B

Rationale: An exemplary record signifies work that is praiseworthy, exceptional, or outstanding. Therefore, the correct answer is 'B: Praiseworthy.' Choices 'A: Ordinary,' 'C: Disappointing,' and 'D: Confusing' do not align with the meaning of having an exemplary record and are thus incorrect.

4. Which word in the following sentence is a conjunction: 'The little girl wanted a cookie, but she didn’t take one.'

A. little
B. but
C. take
D. the

Correct answer: B

Rationale: 'But' is the conjunction in this sentence. A conjunction is a word that connects clauses or sentences. In this case, 'but' links two contrasting ideas: the little girl wanting a cookie and her decision not to take one. The other options are not conjunctions; 'little' is an adjective, 'take' is a verb, and 'the' is a definite article.

5. A symptom that is exacerbated is ____?

A. Improving
B. Made worse
C. Stayed the same
D. Ameliorated

Correct answer: B

Rationale: The correct answer is 'B) Made worse.' Exacerbated means to make a condition more severe or intense. Therefore, if a symptom is exacerbated, it is getting worse, not improving (choice A), staying the same (choice C), or ameliorated (choice D), which means to improve or make better.