Endocrine system Histo cycle 2
What is TRUE about Thyroid gland?
Thyroglobulin is a protein made by the follicular cells of the thyroid gland
Releasing of trijodotyronin (T3) and thyroxin (T4) is under control of TSH
Is located in the stomach
Is located in the neck
Find true sentences
Type B (beta) cells of Langerhans islets produce insulin
Parafollicular or C cell produce calcitonin
Steroid producing cells can be found in cortex
Plasma cells produce insulin
Which of the following endocrine glands develop from neuroectoderm?
Adrenal medulla
Adrenal cortex
Posterior pituitary
Thymus gland
Select the TRUE statement
Oxytocin is released in Pars nervosa
Vasopressin is released in Pars nervosa
Vasopressin is released in anterior pituitary
Oxytocin is released in anterior pituitary
What is TRUE about Parathyroid gland?
Chief cells are present
Chief cells are absent
Acidophilic cells are present
Acidophilic cells are absent
What is TRUE about Parathyroid hormone?
Increases concentration of calcium in blood
Decreases concentration of calcium in blood
Its receptors are located in osteoblasts
Its receptors are located in chondroblasts
Choose correct pairs
Dehydroepiandrosterone - zona reticularis
Cortisol – zona fasciculate
Thyrotropin – thyroid
Chief cells - herring bodies
What is TRUE about Herring bodies?
Contains oxytocin
Contains pituicytes
ContainsADH
Contains thyrotropin
What is TRUE about Oxytocin?
Acts on the myoepithelial cell of the mammary gland
Is produced in the neurohypophysis
Is produced in the thyroid
Is produced in the pituitary
What is TRUE about Calcitonin?
Is produced by c cells in the thyroid
Is produced by b cells in the thyroid
Decreased concentration of calcium in blood
Increased concentration of calcium in blood
What is TRUE about Androgens?
Is produced in zona reticularis
Is produced in zona fasciculate
Its production depends on ACTH
Its production depends on ADH
What is TRUE about TSH?
Stimulates synthesis and secretion of thyroid hormones
Does not stimulate synthesis and secretion of thyroid hormones
Is regulated by TRH
Is regulated by ACTH
What is TRUE about Kortisol?
Is produced in zona fasciculate
Is produced in zona reticular
Its production depends on ACTH
Its production depends on TRH
Endocrine system – find true sentence/s
Thyroid accumulate/s hormones outside of the cell
Chief cells of parathyroid glands produce parathyroid hormone (PTH)
Neurohypophysis contains axons of hypothalamic neurons and glial cells
Parafollicular or C cells produce and release calcitonin
Find the truth about thyroid
C cells produce calcitonin
Colloid is storage of thyroglobulin
Has got follicular structure
Thyroid accumulate/s hormones strictly on the inside of the cell
What is TRUE about Calcitonin?
T works antagonistically to PTH
Reduces the excretion of calcium through the kidneys
Increases the excretion of calcium through the kidneys
Reduces the storage of calcium in the bones
What is TRUE about Adrenal glands?
Medulla releases and accumulates catecholamines
Zona fasciculata of the cortex is ACTH depended
Zona reticularis of the cortex is ACTH depended
Cortex releases and accumulates catecholamines
What is TRUE about Hypophysis?
In neurohypophysis are unmyelinated axons
In neurohypophysis are myelinated axons
In pars intermedia POMC is also produced
In pars intermedia POMC is not produced
What is TRUE about Hypophysis? (2)
Pituicytes are cells of neurohypophysis
TSH is stored in the pars intermedia
TSH is stored in the pars nervosa
TSH is not stored in the pars nervosa
Endocrine system find true sentence/s
Neurohypophysis contains axons of hypothalamic neurons and glial cells
Neurohypophysis largely contains myelinated axons
Parafollicular or C cells produce and release calcitonin
Parafollicular or C cells only produce calcitonin, they do not release it
What is TRUE about Pineal gland?
Is covered by pia mater
Produces melatonin
Produces vasotocin
Unmyelinated axons are found there
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