NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This body region is protected by fatty acids, acidic pH, lactic acid and a tough cell barrier with its own normal biota.
A
skin
B
respiratory tract
C
digestive tract
D
urinary tract
Explanation: 

Detailed explanation-1: -Answer: The region of the body which is protected by fatty acids, the presence of an acidic pH, lactic acid and a tough cell barrier with its own normal biota is the Skin. The integumentary system contains both skin and sweat glands.

Detailed explanation-2: -The skin is protected by fatty acids, acidic pH, lactic acid, and a tough cell barrier with its own normal flora.

Detailed explanation-3: -That is, the immune system must be able to distinguish what is nonself (foreign) from what is self. The immune system can make this distinction because all cells have identification molecules (antigens) on their surface. Microorganisms are recognized because the identification molecules on their surface are foreign.

Detailed explanation-4: -Answer and Explanation: T-cells are also a type of white blood cell that are present inside the body. T-cells are not considered as a physical barrier as these types of cells are produced or originated from the bone marrow and in the thymus, these cells will mature.

Detailed explanation-5: -In humans, and in vertebrates generally, the most-effective phagocytic cells are two kinds of white blood cells: the macrophages (large phagocytic cells) and the neutrophils (a type of granulocyte).

There is 1 question to complete.