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Test

Thyroid Gland

Beth Morgan 13 preguntas Actualizado el 4 may 2017

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Preguntas del test (13)

  1. 1Label the thyroid gland Imagen de la pregunta 1
    1. ALarynx
    2. Btrachea
    3. CThyroid gland
    4. DIsthmus
  2. 2Label the histology of the thyroid gland Imagen de la pregunta 2
    1. Acolloid
    2. Bfollicular cells (secrete hormone)
    3. Ccapillary
    4. Dmade of follicles
  3. 3The thyroid gland secretes [blank_start]triiodothyronine[blank_end] (T[blank_start]3[blank_end]) and [blank_start]thyroxine[blank_end] (T[blank_start]4[blank_end]). It secretes less T[blank_start]3[blank_end] despite it having more biological activity. They are made from an amino acid called [blank_start]tyrosine[blank_end] which is [blank_start]iodinated[blank_end]. In plasma they are bound to [blank_start]albumin[blank_end].
    1. Atriiodothyronine
    2. B3
    3. Cthyroxine
    4. D4
    5. E3
    6. Ftyrosine
    7. Giodinated
    8. Halbumin
  4. 4Synthesis of thyroid hormones:
    1. [blank_start]Thyroglobulin[blank_end] is synthesised in rough ER and transported into the colloid.
    2. [blank_start]Iodide[blank_end] is actively transported from the bloodstream into the [blank_start]follicular cells[blank_end] and then oxidised to [blank_start]Iodine[blank_end].
    3. Iodine attaches to the [blank_start]tyrosine[blank_end] on the thyroglobulin molecule forming [blank_start]MIT[blank_end] and [blank_start]DIT[blank_end].
    4. They are then linked to form [blank_start]T3[blank_end] and [blank_start]T4[blank_end].
    5. Thyroglobulin colloid is [blank_start]endocytosed[blank_end].
    6. Lysosomal enzymes [blank_start]cleave[blank_end] T3 and T4 from thyroglobulin and hormones [blank_start]diffuse into bloodstream[blank_end].
    1. AThyroglobulin
    2. BIodide
    3. Cfollicular cells
    4. DIodine
    5. Etyrosine
    6. FMIT
    7. GDIT
    8. HT3
    9. IT4
    10. Jendocytosed
    11. Kcleave
    12. Ldiffuse into bloodstream
  5. 5The major advantage of the synthesis of thyroid hormones is that they can be [blank_start]stored[blank_end].
    1. Astored
  6. 6Thyroid hormones act on:
    1. [blank_start]Metabolism[blank_end]
    2. [blank_start]Heat Production[blank_end]
    3. [blank_start]Growth and Development[blank_end]
    4. [blank_start]Cardiovascular function[blank_end]
    1. AMetabolism
    2. BHeat Production
    3. CGrowth and Development
    4. DCardiovascular function
  7. 7Label the negative feedback diagram Imagen de la pregunta 7
    1. Astress
    2. Bcold stress and low metabolic rate
    3. Cthyrotrophin releasing hormone (TRH)
    4. Dthyroid-stimulating hormone (TSH)
    5. EThyroxine (T4) and T3
  8. 8Having a hypothyroid means your thyroid is overactive and leads to increased metabolic rate and weight loss
    1. AVerdadero
    2. BFalso
  9. 9What are symptoms of hypothyroidism?
    1. Asensitivity to cold
    2. Bweight loss
    3. Cweight gain
    4. Dlethargy
    5. Eimpaired memory
    6. Freduced metabolic rate
    7. Gincreased metabolic rate
    8. Hincreased cardiac output
    9. Idecreased cardiac output
  10. 10Hypothyroidism is diagnosed by [blank_start]low[blank_end] plasma levels of T3 and T4. The treatment is [blank_start]thyroxine[blank_end].
    1. Alow
    2. Bthyroxine

Información

Descripción
(Structure and Function ) Biology Test sobre Thyroid Gland , creado por Beth Morgan el 04/05/2017.
Idioma
English
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Historial
Creado el 4 may 2017 · actualizado el 4 may 2017
Etiquetas
biologystructure and function
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