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Which of these can provide significant protein to a person on a vegan diet?
- A. Eggs
- B. Fish
- C. Tofu
- D. Leafy greens
Correct Answer: C
Rationale: Tofu is a plant-based source of protein that can provide a significant amount of protein to a person on a vegan diet. It is made from soybeans and is a versatile ingredient that can be used in various dishes to increase protein intake. Tofu is a good option for vegans looking to meet their protein needs. Eggs and fish are not suitable for a vegan diet as they are animal products. While leafy greens do contain some protein, they are not considered a significant protein source compared to tofu.
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Which of the following is not part of the body's secondary defense system?
- A. Macrophages
- B. Leukocytes
- C. T cells
- D. Cilia
Correct Answer: D
Rationale: Cilia are not part of the body's secondary defense system. They are hair-like structures primarily involved in movement and transporting substances across cell surfaces, such as in the respiratory tract for debris and pathogen removal. However, cilia do not play a direct role in the immune response mechanisms characteristic of the body's secondary defense system. Macrophages, leukocytes, and T cells are immune cells that actively participate in the secondary defense system by targeting and eliminating pathogens.
You have been given a sample tissue that has pillar-shaped cells arranged tightly together. The tissue you have is:
- A. Squamous Epithelium
- B. Cuboidal Epithelium
- C. Columnar Epithelium
- D. Transitional Epithelium
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.
The coronal plane of the body may also be called the ___________ plane.
- A. sagittal
- B. median
- C. frontal
- D. axial
Correct Answer: C
Rationale: The correct answer is C: frontal. The coronal plane of the body is also known as the frontal plane. This plane divides the body into front (anterior) and back (posterior) sections. It is perpendicular to the sagittal plane and divides the body into front and back portions. The term 'coronal' is often used in radiology and anatomy to describe this specific anatomical plane. Choices A, B, and D are incorrect because the sagittal plane divides the body into left and right portions, the median plane is another name for the sagittal plane, and the axial plane is a term less commonly used to describe an anatomical plane.
Where is a gallstone most likely to cause pain?
- A. In the upper right quadrant of the abdomen
- B. In the lower right quadrant of the abdomen
- C. In the umbilical region
- D. Along the pelvic girdle
Correct Answer: A
Rationale: A gallstone is most likely to cause pain in the upper right quadrant of the abdomen. This specific area corresponds to the location of the gallbladder. When a gallstone blocks the flow of bile from the gallbladder, it can lead to inflammation and pain in this region. The pain may also radiate to the back or right shoulder blade due to referred pain patterns associated with gallbladder issues. Choices B, C, and D are incorrect because gallstone pain is typically felt in the upper right quadrant of the abdomen, not the lower right quadrant, umbilical region, or along the pelvic girdle.
The anterior chamber of the eye lies between the ___________.
- A. iris and lens
- B. lens and retina
- C. cornea and iris
- D. retina and optic nerve
Correct Answer: A
Rationale: The anterior chamber of the eye is the fluid-filled space located between the cornea and the iris in the front part of the eye. It contains aqueous humor and helps maintain intraocular pressure. The space between the iris and the lens is known as the anterior chamber, making option A, 'iris and lens,' the correct choice. Options B, C, and D are incorrect because they do not describe the correct anatomical location of the anterior chamber.