ATI TEAS 7
Anatomy
1. What is the medical term for ingrown hair?
- A. Folliculitis
- B. Hirsutism
- C. Pseudofolliculitis Barbae
- D. Alopecia
Correct answer: C
Rationale: The correct answer is C: 'Pseudofolliculitis Barbae.' This term specifically refers to ingrown hairs commonly seen in the beard area. Folliculitis (A) is inflammation of the hair follicles, not necessarily due to ingrown hairs. Hirsutism (B) is excessive hair growth, unrelated to ingrown hairs. Alopecia (D) is hair loss, which is also not related to ingrown hairs. Therefore, 'Pseudofolliculitis Barbae' is the medical term specifically used to describe ingrown hairs in the beard area, making it the correct answer.
2. A patient's temperature is 98.6 degrees Fahrenheit. What is their temperature in degrees Celsius (1°F = 5/9°C)?
- A. 32°C
- B. 37°C
- C. 41°C
- D. 45°C
Correct answer: A
Rationale: Subtract 32 from the Fahrenheit temperature (98.6°F) and then multiply by 5/9 to get 37°C.
3. The ability of a substance to dissolve in another is called:
- A. Solubility
- B. Miscibility
- C. Immiscibility
- D. Reactivity
Correct answer: A
Rationale: Solubility refers to the extent to which one substance can dissolve in another to form a homogeneous solution.
4. Action potentials, the all-or-nothing electrical signals traveling along neurons, are generated by the movement of:
- A. Glucose
- B. Sodium and potassium ions
- C. Neurotransmitters
- D. Myelin
Correct answer: B
Rationale: The correct answer is B: Sodium and potassium ions. Action potentials are generated by the movement of sodium and potassium ions across the neuronal membrane. During depolarization, sodium ions rush into the cell, causing a change in electrical charge. This influx of positive ions triggers the opening of voltage-gated potassium channels, allowing potassium ions to exit the cell during repolarization. Glucose is a source of energy for cells but does not directly generate action potentials. Neurotransmitters are chemical messengers released at synapses, while myelin is a fatty substance that insulates axons, speeding up the conduction of action potentials but not directly generating them.
5. When writing dialogue, remember to:
- A. Avoid contractions and informal language for realism.
- B. Use formal vocabulary to sound sophisticated.
- C. Create realistic speech patterns reflecting the characters' personalities.
- D. Focus on descriptive narrative over character interactions.
Correct answer: C
Rationale: Effective dialogue captures the characters' unique voices and personalities through realistic speech patterns and word choices.
6. A satellite orbits the Earth at constant speed. Which force is responsible for its circular motion?
- A. Gravitational force from the Earth
- B. Thrust from the satellite's engine
- C. Friction between the satellite and the atmosphere
- D. Normal force from the Earth's surface
Correct answer: A
Rationale: This force acts towards the Earth's center, providing the centripetal force required for the satellite to move in a circle.
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