which hormone is produced by the adrenal cortex
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HESI A2

HESI A2 Practice Test Anatomy and Physiology

1. Which hormone is produced by the adrenal cortex?

Correct answer: B

Rationale: The correct answer is B, Cortisol. Cortisol is the hormone produced by the adrenal cortex. It plays a crucial role in regulating metabolism, immune response, and managing stress. Insulin is produced by the pancreas, thyroxine by the thyroid gland, and glucagon by the pancreas. Therefore, choices A, C, and D are incorrect as they are not hormones produced by the adrenal cortex.

2. A tissue examined under the microscope exhibits the following characteristics: cells found on the internal surface of the stomach, no extracellular matrix, cells tall and thin, and no blood vessels in the tissue. What type of tissue is this?

Correct answer: A

Rationale: The correct answer is 'Epithelial.' Epithelial tissue is characterized by cells that cover internal and external surfaces, such as the lining of the stomach. It lacks an extracellular matrix, has tall and thin cells, and does not contain blood vessels. The other choices are incorrect because connective tissue typically has an extracellular matrix, muscle tissue is composed of contractile cells, and cartilage is a type of connective tissue with a specific extracellular matrix and cell arrangement.

3. Where is the genetic material located within a cell?

Correct answer: A

Rationale: The genetic material, which is composed of DNA, is primarily located in the nucleus of a cell. The nucleus serves as the control center of the cell, housing the genetic information that directs the cell's functions and characteristics. Choice B (Mitochondria), C (Ribosome), and D (Golgi apparatus) are incorrect because while these cellular components play essential roles in the cell, they do not house the genetic material. Mitochondria are known as the powerhouse of the cell, responsible for energy production; ribosomes are involved in protein synthesis, and the Golgi apparatus is responsible for processing and packaging proteins for transport.

4. Which of the following statements is anatomically correct?

Correct answer: C

Rationale: The term 'proximal' refers to a body part being closer to the center of the body or a point of reference. In this case, the hip is closer to the center of the body compared to the knee, which makes the statement anatomically correct. Choice A is incorrect as the knee is proximal to the ankle. Choice B is incorrect as the heart is superior to the diaphragm. Choice D is incorrect as the elbow is proximal to the wrist.

5. Which of the following is not part of the axial skeletal system?

Correct answer: D

Rationale: The correct answer is D, the radius. The axial skeleton comprises bones located along the central axis of the body. It includes the skull, ribs, breastbone (sternum), vertebrae, and sacrum. The radius, on the other hand, is a bone of the forearm, part of the appendicular skeleton. The appendicular skeleton consists of the bones of the limbs and their girdles, not the central axial bones.

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