what is the function of the urinary bladder
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HESI A2

Anatomy HESI A2 Practice Test

1. What is the function of the urinary bladder?

Correct answer: B

Rationale: The correct answer is B: To store urine. The urinary bladder's primary function is to store urine produced by the kidneys until it is ready to be excreted from the body. It acts as a reservoir that temporarily holds urine until an appropriate time for elimination. Choices A, C, and D are incorrect because the urinary bladder does not filter waste from the blood, regulate fluid balance, or directly remove waste from the body. These functions are primarily carried out by the kidneys and other organs in the excretory system.

2. Which lobe of the brain is primarily responsible for processing sensory information related to touch, temperature, and body position?

Correct answer: B

Rationale: The parietal lobe is primarily responsible for processing sensory information related to touch, temperature, and body position. It plays a crucial role in interpreting sensations from different parts of the body, including proprioception, which is the awareness of body position. The frontal lobe is more associated with functions like decision-making and personality, the occipital lobe is primarily involved in visual processing, and the temporal lobe is responsible for auditory processing and memory. Therefore, the parietal lobe is the correct answer for this question.

3. You have been given a sample tissue that has pillar-shaped cells arranged tightly together. The tissue you have is:

Correct answer: C

Rationale: The correct answer is C: Columnar Epithelium. Columnar epithelium is characterized by tall, pillar-like cells that are closely packed together. This arrangement allows for absorption and secretion in tissues like the digestive tract, where this type of epithelium is commonly found. Squamous epithelium (choice A) consists of flat cells, cuboidal epithelium (choice B) has cube-shaped cells, and transitional epithelium (choice D) is found in areas that need to stretch and expand, like the urinary bladder.

4. How is pepsin utilized by the body?

Correct answer: A

Rationale: Pepsin is an enzyme produced in the stomach that is essential for breaking down proteins during digestion. It functions by breaking down large protein molecules into smaller peptides, which are further broken down into amino acids for absorption in the intestines. Therefore, option A, 'To break down proteins,' is the correct answer. Choices B, C, and D are incorrect as they do not align with the specific function of pepsin in the body.

5. What condition might result from a lack of vitamin C?

Correct answer: D

Rationale: Scurvy is the correct answer. Scurvy is a condition caused by a deficiency of vitamin C in the diet. Vitamin C is essential for collagen synthesis, and its deficiency leads to symptoms such as weakness, swollen and bleeding gums, joint pain, fatigue, and easy bruising. If left untreated, scurvy can lead to more severe complications. Choices A, B, and C are incorrect. Kwashiorkor is a severe form of malnutrition due to insufficient protein intake, pellagra is caused by a deficiency of niacin (vitamin B3), and rickets results from a deficiency of vitamin D, calcium, or phosphate.

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