Histology NBME full questions WITH ANSWERS,

Histology NBME full questions |\ |\ |\ |\




WITH ANSWERS |\




1.Nuclear pores: |\




A)Combine to form a hexagonal structure |\ |\ |\ |\ |\




B)Have 50nm in diameter |\ |\ |\




C)Their number is not connected with cellular activity
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D)Nuclear lamina are connected to their inner rings
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E)A and C are correct
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F)B and D are correct - CORRECT ANSWERS ✔✔E)A and C
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are correct
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The conducting zone of the respiratory system:
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A) Includes the upper airways, trachea and the bronchial
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tree (including the terminal bronchioles)
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B) Is designed for airflow and respiration
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C) Includes only the nose and the pharynx
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D) Is designed for olfactory
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔A)
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Includes the upper airways, trachea and the bronchial
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tree (including the terminal bronchioles)
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,***The bronchial tree starts with the primary bronchi:
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A)And ends with the respiratory bronchioles
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B) And on each section is lined with the simple columnar
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epithelium
C) And is composed of submucosa with plates of
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fibrocartilage
D) And is part of the conducting portion
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔D) And is
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part of the conducting portion
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***The feature of skeletal muscles is:
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A) Composed of mononucleated cells
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B) Have myofibrils that does not possess A bands
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C) Are composed of bundles of multinucleated fibers
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D) Their contraction is slow and not subject to voluntary
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control
E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔C) Are
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composed of bundles of multinucleated fibers |\ |\ |\ |\ |\




***In the skeletal muscle thin filaments are composed of:
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,A) Actin
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B) Myosin
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C) Tropomyosin
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D) Light and heavy chains
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔E) A and
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C are correct
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***The contraction of skeletal muscle requires:
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A) GTP |\




B) ATP |\




C) Mg ions
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D) Ca ions
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔F) B and
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D are correct
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***Sarcomere:
A) Is the basic contractile unit of skeletal muscle
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B) Is the basic contractile unit of smooth muscle
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C) Consist of thick and thin filaments
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D) Extends from A band to M line
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, E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔E) A and
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C are correct
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***What cell type secretes ACTH?|\ |\ |\ |\




A) Lactotropic cells
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B) Thyrotropic cells
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C) Somatotropic cells
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D) Corticotropic cells
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔D)
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Corticotropic cells |\




***Which of the following phrases concerning osteocytes
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are correct:|\




A) Oval active cells
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B) Placed in Howship's lacunae
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C) Secrete osteoid
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D) Almond-shaped cells
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E) A and C are correct
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F) B and D are correct - CORRECT ANSWERS ✔✔D)
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Almond-shaped cells |\