A student nurse asks what 'essential hypertension' is. What response by the registered nurse is best?

Correct Answer: C

Rationale: The correct answer is C: It is hypertension with no specific cause. Essential hypertension is the most common type of high blood pressure, where there is no identifiable underlying cause. This distinguishes it from secondary hypertension which is caused by another disease (eliminating option A). Option B is incorrect as the term 'essential' in essential hypertension does not imply the necessity of treatment, but rather the absence of a known cause. Option D is also incorrect as essential hypertension does not necessarily refer to severe or life-threatening hypertension, but rather indicates a primary form with no specific cause.

Correct Answer: B

Rationale: The correct answer is B: Stratum granulosum. This layer of the epidermis contains granules of keratohyaline protein, which play a crucial role in the formation of keratin. Keratohyaline granules help bind keratin filaments together, leading to the development of a tough, protective barrier in the skin. A: Stratum malpighi is not the correct choice as it refers to the combination of the stratum basale and stratum spinosum layers of the epidermis, which do not contain keratohyaline granules. C: Stratum lucidum is not the correct choice as it is a thin, translucent layer found only in certain areas of the skin, such as the palms and soles, and does not contain keratohyaline granules. D: Stratum corneum is not the correct choice as it is the outermost layer of the epidermis composed of dead, ker

Correct Answer: A

Rationale: The correct answer is A because if dead cells of the stratum corneum are alive, it means the skin barrier is compromised, allowing bacteria to penetrate the skin and enter the body, leading to potential infections and health risks. Choice B is incorrect because the growth of hairs is unrelated to the status of the stratum corneum. Choice C is incorrect as the secretion of sweat is not directly affected by the condition of the stratum corneum. Choice D is incorrect because bacteria developing on the skin is a common occurrence, regardless of the state of the stratum corneum.

Correct Answer: A

Rationale: The correct answer is A: Epidermis. In rabbits, hairs and most glands are developed from the epidermis, the outermost layer of the skin. The epidermis contains specialized cells that differentiate into hair follicles and various glands. The dermis (choice B) is the layer beneath the epidermis, primarily consisting of connective tissue. The subcutaneous layer (choice C) is primarily made of fat cells and helps insulate the body. The reticular layer (choice D) is part of the dermis and provides structural support. Therefore, the epidermis is the correct choice as it is the primary source of hair and gland development in rabbits.

Correct Answer: A

Rationale: The correct answer is A: Mastology. The term "masto-" refers to breasts or mammary glands, making mastology the study of mammary glands. Stomatology (B) is the study of the mouth and its diseases, heptatology (C) is the study of the liver, and angiology (D) is the study of blood vessels. Therefore, A is the only choice that accurately represents the study of mammary glands.