Biology Questions and Answers
- What are some signs and
symptoms found in patients
with hypothyroidism?
In hypothyroidism thsecretion of T3 and T4 are impaired.e production an d
Since these thyroithe basal metabolismd hormones stimulate of the body
(cellular respiration, fat acid and protein
metabolism,hypothyroidism etc.) th may pre patieesentnt with
bradycardia (low heart rate), low
respiratory rate, depression, cold intolerance aexcessive tirend weightdness, (^)
gain. Hyaccompapothyrnied by goiter (enlargemoidism is normally (^) ent of
the thyroid in the neck).
- What is the physiological
cause of the syndrome known
as cretinism?
Cretinismdeficiency of the thyroid is caused by chronichormones (T3 (^)
and T4) during childhypothyroidism during childhood. The chronichood may
cause retardation and low stature due to
the low basal metabolic rate in a periodof life when growth and development of (^)
mind faculties occur.
- What are the
parathyroids? Where are they
located and what are the
hormones secreted by these
glands?
The parathyroiembedded two ids are four smalln each posterior face of glands (^)
one thyroid secrete parathormolobe. The parathyroine, a hormone thatds (^)
together with calcitonin and vitamin D
regulates the calcium blood level.
- What is the relation
between secretion of
parathormone and the calcium
blood level?
The parathormone increases the calcium
blood level since it stimulatesresorption (remodelation) of the the
osseous tissue. When osteoclasts
remodel bones calciumthe circulation. is released in
Parathormocalcium absorne also acts increasinption in the intestines bg they (^)
vitamin D activation. It acts in the
kidneys presorption romotintoo. g tubular calcium
- What is a mixed gland?
Why is the pancreas
considered a mixed gland?
Mixed gland is a gendocrine and exocrine sland that producesecretions.
The pancreasgland because it secret is an example es hormones inof a mixed
the circulation, like iglucagon, but it also releases annsulin and (^)
exocrine secretion, the pancreatic juice.
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