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Histology NBME QUESTIONS ANSWERS 2023A GRADED 100 VERIFIED $12.49   Add to cart

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Histology NBME QUESTIONS ANSWERS 2023A GRADED 100 VERIFIED

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Histology NBME QUESTIONS & ANSWERS 2023(A+ GRADED 100% VERIFIED) Hematoxlyin and Eosin Plasma membrane B-galactosidase Enterocytes Merkels cells Langerhans cells Types of collagen Respiratory flow Tertiary bronchi Function of estrogen 1. Atrophy 2. Hyperplasia 3. Hypertrophy 4. Hypopl...

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  • March 8, 2024
  • 22
  • 2023/2024
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Histology NBME QUESTIONS & ANSWERS
2023(A+ GRADED 100% VERIFIED)

1). Hematoxlyin and eosin

 Ans: 1. Hematoxylin = basic dye stains acidic molecules like nucleus, DNA, RNA

2. Eosin = acidic dye stains basic molecules like cytoplasm


2). Plasma membrane

 Ans: lipid bilayer in which proteins are embedded
-has 2 layers
1. hydrophilic = head
2. hydrophobic = tail

2 types of proteins in plasma membrane:
1. Integral membrane proteins = inside the plasma membrane

2. Peripheral membrane proteins = outside of the membrane

*steroids are lipid soluble molecule, anything that is lipid soluble can pass through the
lipid bilayer*


3). B-galactosidase

 Ans: An enzyme located in lysosomes
breaks down lactose
-activity at the cell surface of enterocytes


4). Enterocytes

 Ans: specialized absorptive cells in the villi of the small intestine


5). Merkels cells

 Ans: detect light touch and superficial pressure




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, 6). Langerhans cells

 Ans: special macrophages that serve as antigen-presenting cells in the skin


7). Types of collagen

 Ans: type 1 - bone
type 2- cartilage
type 3 - reticular fibers
type 4 - basement membrane


8). Respiratory flow

 Ans: Trachea
Primary bronchi
Secondary bronchi
Tertiary bronchi
Respiratory bronchioles
Alevolar ducts
Alecolar sacs


9). Tertiary bronchi

 Ans: source of the mucus


10). Function of estrogen

 Ans: Female sex hormone
-produced a lot during follicle development


11). 1. atrophy
2. hyperplasia
3. hypertrophy
4. hypoplasia
5. metaplasia

 Ans: 1. cells die
2. get bigger in cell #
3. get bigger in size
4. incomplete development
5. cells change in shape abnormal




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, 12). Which muscle cell component helps spread the depolarization of the muscle cell
membrane throughout the interior of muscle cells

 Ans: T-tubules


13). Which cells make myelin in cns and pns?

 Ans: CNS = oligodendrocytes
PNS = schwaan cells


14). Microglial cells

 Ans: -Macrophages of the CNS
-They remove damaged neurons and infections and are important for maintaining the
health of the CNS.


15). Kupffer cells

 Ans: -Macrophages of the liver
are found in the sinusoid of the liver


16). Ependymal cells

 Ans: Produce cerebrospinal fluid (CSF)


17). Which of the following nuclear structures is dna actively transcribing to rrna

 Ans: Nucleolus


18). "gamed" igg, iga, igm, ige, igd

 Ans: IgG = fetus to mother placenta most common, most abundant
IgA = protects mucous
IgM = first responder on B cells
IgE = allergic reaction
IgD = on B cells


19). Zollinger-ellison syndrome




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