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ATI Anatomy and Physiology Online Practice
1. When the body is placed in the anatomical position, which of the following is not true?
- A. The head is facing to the front.
- B. The palms are facing forward.
- C. The body is erect.
- D. The upper limbs are at the sides.
Correct answer: B
Rationale: In the anatomical position, the palms are facing forward, not backward. Choice A is correct because the head is indeed facing to the front. Choice C is correct as the body is erect. Choice D is correct as the upper limbs are positioned at the sides. Therefore, the incorrect statement is that the palms are facing forward.
2. Which of the following is produced by the prostate gland?
- A. testosterone
- B. fluid to lubricate the head of the penis
- C. substance to enhance sperm mobility
- D. Gonadotrophin-releasing hormone
Correct answer: B
Rationale: The correct answer is 'fluid to lubricate the head of the penis.' The prostate gland produces a milky fluid that makes up part of the seminal fluid, which helps to nourish and transport sperm. Testosterone is produced mainly by the testes, not the prostate gland. While the prostate gland does contribute to sperm mobility, its primary function is to produce the fluid that lubricates the penis during ejaculation. Gonadotrophin-releasing hormone is produced by the hypothalamus and regulates the release of hormones from the pituitary gland.
3. Is the following statement true: The anatomical position is lying down, as a cadaver would be positioned?
- A. TRUE
- B. FALSE
- C. Not Sure
- D. None of the above
Correct answer: B
Rationale: The correct answer is False. The anatomical position is a standardized way of describing the human body's orientation in a consistent manner. The anatomical position is standing upright, facing forward, with the arms at the sides and palms facing forward. This position serves as a reference point for anatomical descriptions and directional terms. Therefore, the statement that the anatomical position is lying down, as a cadaver would be positioned, is incorrect. Choice A is incorrect because the anatomical position is not lying down. Choices C and D are also incorrect as there is a definitive answer to the question.
4. Magnetic resonance imaging might be used to
- A. distinguish between normal and abnormal tissue.
- B. examine an injured knee.
- C. provide detailed images of the brain.
- D. do both A and B.
Correct answer: B
Rationale: Magnetic resonance imaging, commonly known as MRI, is a non-invasive imaging technique used to visualize internal structures of the body. While it can be used to distinguish between normal and abnormal tissue, one of its common applications is to examine musculoskeletal injuries, such as an injured knee. Choice A has been corrected to mention 'normal and abnormal tissue' instead of 'normal and cancerous tissue' as MRI is not solely used for cancer detection. Choice C is incorrect as MRI can provide detailed images of various body parts, not just limited to the brain. Therefore, the correct answer is to examine an injured knee.
5. An individual with which of the following blood type can receive only blood of that same type?
- A. Type O
- B. Type A
- C. Type B
- D. Type AB
Correct answer: A
Rationale: The correct answer is Type O. Individuals with blood type O can only receive blood from donors with blood type O. This is because type O blood lacks both A and B antigens, so if a person with type O blood receives blood with A, B, or AB antigens, their immune system will recognize these as foreign substances and attack them. Choices B, C, and D are incorrect because individuals with type A can receive blood from A or O donors, individuals with type B can receive blood from B or O donors, and individuals with type AB can receive blood from A, B, AB, or O donors.
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