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ATI TEAS 7

Anatomy

1. When a blockage forms in a coronary artery, reducing blood flow to the heart muscle, this condition is called:

Correct answer: C

Rationale: The correct answer is C: "Angina pectoris." Angina pectoris is the condition that occurs when there is a blockage in a coronary artery, leading to reduced blood flow to the heart muscle. This decreased blood flow can cause chest pain or discomfort, typically during physical exertion or stress. Atherosclerosis (option A) is the buildup of plaque in the artery walls, which can lead to blockages. Myocardial infarction (option B) refers to a heart attack, which occurs when there is a complete blockage in a coronary artery resulting in damage to the heart muscle. A heart murmur (option D) is an abnormal sound heard during the heartbeat, not directly related to a blockage in a coronary artery. Therefore, the correct term for a blockage in a coronary artery that reduces blood flow to the heart muscle is angina pectoris.

2. Which hormone, produced by the adrenal glands, prepares the body for a "fight or flight" response by increasing heart rate, dilating airways, and mobilizing energy stores?

Correct answer: c

Rationale: The correct answer is C: Epinephrine. Epinephrine, also known as adrenaline, is the hormone produced by the adrenal glands that prepares the body for a 'fight or flight' response. It increases heart rate to pump more blood to muscles, dilates airways to improve oxygen intake, and mobilizes energy stores to provide immediate fuel for physical activity. Cortisol is a hormone involved in stress response and metabolism regulation, but it does not directly trigger the rapid physiological changes associated with 'fight or flight.' Aldosterone regulates salt and water balance, while insulin regulates blood sugar levels, neither of which are directly involved in preparing the body for a rapid response to danger or stress.

3. What is the best way to punctuate the dialogue "Are you coming?" she asked. "Maybe," I replied.

Correct answer: B

Rationale: Each speaker's words need quotation marks, and the question mark should go inside the closing quotation mark of the question.

4. A water fountain has a spherical base (diameter 50cm) and a cylindrical body (diameter 30cm, height 80cm) on top. What is the total surface area of the fountain (excluding the water surface)?

Correct answer: C

Rationale: Calculate the surface area of the sphere and the cylinder separately, then add them up.

5. The energy required to break a chemical bond is called:

Correct answer: C

Rationale: Rationale: Activation energy is the energy required to break a chemical bond and initiate a chemical reaction. Kinetic energy (option A) is the energy of motion, potential energy (option B) is stored energy, and bond energy (option D) is the energy required to break a particular chemical bond in a molecule. Among the options provided, activation energy best describes the energy required to break a chemical bond.

6. What is the scientific term for the monthly cycle in females that prepares the body for potential pregnancy?

Correct answer: B

Rationale: The correct answer is B: 'Menstrual cycle.' The menstrual cycle is the scientific term for the monthly process in females that prepares the body for potential pregnancy. During this cycle, the lining of the uterus thickens to prepare for a fertilized egg, and if no fertilization occurs, the uterus sheds this lining in the form of menstrual bleeding. Ovulation cycle refers specifically to the release of an egg from the ovary, implantation cycle is the process of a fertilized egg attaching to the uterine wall, and gestation cycle is the period of pregnancy from conception to birth. Therefore, the menstrual cycle is the most appropriate term for the monthly process described in the question.

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