Biology, 03.08.2019 15:50 lettymartinez6842

Whats wrong with timothy a case study on the endocrine system answers?

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1. Timothy's symptoms are loss of coordination and stamina, sudden increase in growth rate, painful joints, nausea, worse school performance (probably cognitive decline) and changes in personality, such as depressive mood, introversion, anxiety and tension. The organ system which could be implicated in these deficits is the thyroid gland, an important part of the human endocrine system

2. The thyroid gland is an endocrine gland located in the neck, behind Adam's apple. It produces two thyroid hormones, thyroxine and triiodothyronine, and calcitonin. The thyroid gland is a very important regulator of metabolism, protein synthesis and development. In particular, thyroid hormones regulate the body's metabolism, by controlling the way the cells produce and consume energy.

3. Hyperthyroidism is an endocrine condition in which the thyroid gland produces an excessive amount of thyroid hormones. It is the case of an overactive thyroid and its main symptom is the acceleration of the metabolism. Timothy's symptoms that could suggest hyperthyroidism are his sudden increase of growth rate and inability to gain weight, his nervousness and mood changes, and his fatigue or loss of energy.

4. Cortisol is a steroid hormone that is produced by the adrenal gland. It is considered the body's stress hormone, as it is released in response to a stressor. It is also produced in response to low blood-glucose concentration. Some of its functions are the increase of blood sugar and the suppression of the immune system and bone formation. Cortisol is also involved in the metabolism of macronutrients.

Answer from: Quest

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.

Answer from: Quest

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

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