ATI RN
ATI Anatomy and Physiology
1. What is the function of the gallbladder?
- A. Filters all of the blood in the body and breaks down poisonous substances, such as alcohol and drugs
- B. Make enzymes
- C. Store and concentrate bile, a fluid produced by the liver that helps with fat digestion
- D. Helps to further digest food
Correct answer: C
Rationale: The correct answer is C: Store and concentrate bile, a fluid produced by the liver that helps with fat digestion. The gallbladder stores bile produced by the liver and releases it to aid in the digestion of fats. Choice A is incorrect as the liver, not the gallbladder, filters blood and detoxifies harmful substances. Choice B is incorrect because the production of enzymes primarily occurs in the pancreas, not the gallbladder. Choice D is incorrect as the gallbladder's main role is not to further digest food but to store and release bile.
2. Which of the following describes the event of ovulation?
- A. The fallopian tube moves the ovum to the uterus.
- B. The oocyte undergoes its first meiotic division.
- C. The Graafian follicle releases an ovum.
- D. The corpus luteum produces progesterone.
Correct answer: C
Rationale: Ovulation is the release of a mature egg (ovum) from the Graafian follicle in the ovary. This process is essential for fertilization. Choice A is incorrect because the fallopian tube does not move the ovum to the uterus; rather, it provides a pathway for the egg to travel from the ovary to the uterus. Choice B is incorrect as the oocyte undergoes its first meiotic division after ovulation. Choice D is incorrect because the corpus luteum forms after ovulation and is responsible for producing progesterone.
3. Most of the terminology to name and describe body parts and their functions comes from
- A. Latin and Greek.
- B. English and Italian.
- C. Pictures drawn on the cave walls of our ancestors.
- D. The language of hunter-gatherers.
Correct answer: A
Rationale: The correct answer is Latin and Greek. Medical terminology is largely derived from Latin and Greek roots. These languages have been foundational in the development of medical terminology due to the precision and descriptive nature of their vocabulary. Choice B, English and Italian, is incorrect because while some medical terms may have originated from these languages, the majority come from Latin and Greek. Choices C and D, pictures drawn on the cave walls of our ancestors and the language of hunter-gatherers, are both incorrect as they do not align with the historical origins of medical terminology.
4. Which of the following organs is in the abdominopelvic cavity?
- A. The heart
- B. The trachea
- C. The thymus
- D. The liver
Correct answer: D
Rationale: The correct answer is the liver. The liver is located in the abdominopelvic cavity, which is the space between the diaphragm and the pelvic floor. The heart, trachea, and thymus are not located in the abdominopelvic cavity. The heart is situated in the thoracic cavity, the trachea is in the neck region, and the thymus is located in the upper chest. Understanding the anatomical locations of organs is crucial for medical professionals to accurately diagnose and treat patients.
5. In all organisms, what is the basic unit of structure and function?
- A. the atom
- B. the molecule
- C. the macromolecule
- D. the cell
Correct answer: D
Rationale: The correct answer is 'the cell.' Cells are considered the basic unit of structure and function in all living organisms. While atoms are the smallest units of matter, they do not represent the basic unit of structure and function in organisms. Molecules are made up of atoms and can vary in size and complexity, but they are not the fundamental unit of life. Macromolecules are large molecules essential for life processes, but they are composed of atoms and do not function as the basic unit of structure and function in organisms. Therefore, the cell, with its organelles and specialized functions, is the correct answer.
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