Logo

Nursing Elites

ATI TEAS 7

Anatomy

1. Sweat glands help regulate body temperature by:

Correct answer: C

Rationale: The correct answer is C. Sweat glands help regulate body temperature by releasing a watery fluid that evaporates for cooling. When the body temperature rises, sweat glands produce sweat, which is mostly composed of water and salts. As this sweat evaporates from the skin's surface, it absorbs heat energy from the body, thus cooling it down. This process is essential for maintaining a stable body temperature during physical exertion or exposure to heat. Options A, B, and D are incorrect as sebum produced by sebaceous glands lubricates the skin, blood vessels dilate rather than constrict during sweating to release heat, and the epidermis does not thicken for insulation related to sweat glands.

2. During photosynthesis, plants capture sunlight and convert water and carbon dioxide into glucose and oxygen. This is an example of a:

Correct answer: C

Rationale: The correct answer is C: Synthesis reaction. During photosynthesis, plants combine water and carbon dioxide using sunlight to produce glucose and oxygen. In a synthesis reaction, two or more substances combine to form a more complex product. In this case, glucose and oxygen are synthesized from simpler molecules. A decomposition reaction involves breaking down a compound into simpler substances, which is not the case in photosynthesis. Combustion reactions involve the rapid reaction of a fuel with oxygen to produce heat and light, which is also not the process occurring in photosynthesis. Double displacement reactions involve the exchange of ions between two compounds to form new compounds, which is not the mechanism of photosynthesis. Therefore, the process described in the question aligns with a synthesis reaction.

3. Which part of the heart generates the QRS complex on an ECG?

Correct answer: D

Rationale: The correct answer is D, ventricular muscle cells. The QRS complex on an ECG represents the depolarization of the ventricles. This electrical activity is generated by the spread of impulses through the bundle branches and Purkinje fibers to the ventricular muscle cells. The SA node (option A) is responsible for initiating the electrical impulse in the heart, but it does not directly generate the QRS complex. The AV node (option B) delays the impulse to allow for proper coordination of atrial and ventricular contractions. The Bundle of His (option C) and its branches facilitate the conduction of the electrical signal from the AV node to the ventricles but do not generate the QRS complex directly.

4. Which of the following is NOT a state of matter?

Correct answer: D

Rationale: While superfluids exhibit some liquid-like properties, they are a distinct state of matter with unique characteristics beyond the traditional solid, liquid, gas, and plasma classifications.

5. When referring to blood vessel walls, the term "atherosclerosis" describes:

Correct answer: D

Rationale: Atherosclerosis is a condition characterized by the abnormal buildup of plaque within the arterial walls. This plaque is made up of substances like cholesterol, calcium, and fatty compounds. Over time, this plaque can harden and narrow the arteries, leading to reduced blood flow and potential complications like heart attacks and strokes. Options A, B, and C do not accurately describe atherosclerosis. Option A is incorrect because atherosclerosis is not a normal aging process but rather a disease. Option B is incorrect because atherosclerosis involves the buildup of plaque rather than inflammation of the inner lining of blood vessels. Option C is incorrect because an aneurysm is a different condition involving the dilation and weakening of a blood vessel wall, not the buildup of plaque seen in atherosclerosis.

6. A bookshelf has triangular shelves with a base of 40cm and a height of 30cm. The depth of the shelf is 25cm. What is the volume of each shelf?

Correct answer: B

Rationale: Calculate the area of the triangle (1/2 * base * height) and multiply by the depth.

Similar Questions

A bookshelf has triangular shelves with a base of 40cm and a height of 30cm. The depth of the shelf is 25cm. What is the volume of each shelf?
What is the tough, fibrous tissue that connects bones at joints called?
A stop sign has five equal sides, each measuring 25cm. What is its perimeter?
What type of energy is possessed by an object due to its position or configuration?
Which structure in the respiratory system is responsible for the exchange of oxygen and carbon dioxide between the lungs and the bloodstream?
Nuclear forces are much stronger than electromagnetic forces at the nuclear level. What property best describes this characteristic?

Access More Features

ATI TEAS Premium Plus
$149.99/ 90 days

  • Actual ATI TEAS 7 Questions
  • 3,000 questions with answers
  • 90 days access

ATI TEAS Basic
$1/ 30 days

  • 3,000 Questions with answers
  • 30 days access

Other Courses