10 preguntas de histo

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Questions and Answers

¿Cuál de las siguientes estructuras celulares están formadas por microtúbulos?

  • Centriolo (correct)
  • Desmosoma
  • Sarcómero
  • Filamentos Intermedios

¿Cuál de los siguientes es un centro de organización de los microtúbulos?

  • Centrómero
  • Desmosoma
  • Cuerpo basal (correct)
  • Retículo endoplásmico granular

Señale correctamente la sentencia referida a la célula de Schwann

  • Produce mielina en el sistema nervioso central.
  • Produce mielina en el sistema nervioso periférico. (correct)
  • Solo acompaña a las fibras nerviosas mielínicas.
  • Carece de membrana basal.

Un epitelio plano estratificado es el que...

<p>Posee múltiples capas celulares y la superior es aplanada. (A)</p> Signup and view all the answers

¿Cuál de los siguientes elementos forman parte de la barrera alveolar capilar?

<p>Citoplasma del neumocito tipo 1. (B)</p> Signup and view all the answers

En el pulmón:

<p>Las células claras se observan en el epitelio alveolar. (B)</p> Signup and view all the answers

Con respecto a las células parietales del estómago

<p>Secretan ácido clorhídrico y factor intrínseco. (A)</p> Signup and view all the answers

Indique cuál de los siguientes colágenos no es de tipo fibrilar

<p>Colágeno del tipo 4. (C)</p> Signup and view all the answers

Señale de las siguientes opciones el orden en que madura el cartílago en la región metafisaria durante la osificación endocondral

<p>Cartílago en reposo hipertrofiado-proliferación-calcificado. (B)</p> Signup and view all the answers

Señale cuál de las moléculas asociadas a la actina se une al calcio e inicia el proceso de la contracción muscular

<p>Troponina (A)</p> Signup and view all the answers

Flashcards

Microtubules in cells

Microtubules are protein filaments that are part of the cytoskeleton and create the structure of some cell components.

Centrioles

Centrioles are cylindrical organelles involved in cell division (mitosis).

Basal body

Basal bodies are structures that act as microtubule organizing centers.

Schwann cell function

Schwann cells in the peripheral nervous system produce myelin.

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Stratified squamous epithelium

Multiple layers of flattened cells.

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Alveolar-capillary barrier

Barrier in the lungs that helps with gas exchange by including type 1 pneumocytes.

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Pulmonary alveolar cells

Clear cells are one part of the lung epithelium structure.

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Parietal cells (Stomach)

Parietal cells secrete HCl and intrinsic factor.

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Non-fibrillar collagen

Collagen type 4 is a non-fibrillar type of collagen present in basement membranes.

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Cartilage maturation (metaphysis)

Cartilage in the metaphysis progresses in stages, going from resting to hypertrophic, proliferating, and then calcified.

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Muscle contraction

Troponin, a molecule associated with actin, binds to calcium, initiating the contraction-relaxation cycle of muscle.

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Collagen types

Collagen is a protein that forms connective tissue and many types exist, including fibrillar collagens. This group facilitates cell-to-ECM contacts.

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Epithelial tissue layers

Epithelial cells can form layers in distinct tissue arrangements.

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Types of cartilage tissue maturation

Cartilage tissues undergo various maturation processes during growth.

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Cell types in the lungs

Cells in the lungs perform respiration functions.

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