1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sdas [7]
3 years ago
9

How do the thyroid and parathyroid from a feedback loop?

Biology
1 answer:
shtirl [24]3 years ago
6 0

Explanation:

When calcium levels in the blood become too low, parathyroid hormone leads to an increase in calcium by degrading bone. In response, calcitonin from the thyroid is released when the levels are high again, to decrease calcium levels in the blood.

Further Explanation:

During homeostasis the body maintains a constant internal balance in pH, temperature, blood pressure etc. Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis. Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. The regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.

In the body calcium homeostasis, which is generally defined as the maintenance of specific internal conditions, is mediated by the endocrine system through hormonal control. This regulates the calcium flux between the bloodstream and the bone; and the hormones responsible, change the ratio of osteoclast activity to osteoblast activity -osteoblasts build bone while osteoclasts breakdown or degrade bone.

Hormones responsible include calcitonin (from special parafollicular cells in the thyroid gland), calcitriol (activated vitamin D) and the parathyroid hormone (from the  parathyroid glands).  These affect the absorption of calcium from the gut, or kidney reabsorption; both parathyroid hormone and calcitriol act by causing the increase of calcium ions into the bloodstream as the bone is degraded by osteoclasts.

Learn more about tissue types at brainly.com/question/8487952

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

You might be interested in
2. describe three situations in which ionic reactions go to completion.
Travka [436]

The  three situations in which ionic reactions go to completion is formation of a gas,  a precipitate and a slightly ionized product.

<h3>What are ionic reactions?</h3>

It indicates the flow of electrons and, therefore, the bonds broken and formed in the course of the reaction. It is theoretical, it can be corroborated by experiments, but sometimes there is no consensus on the mechanism by which a certain reaction occurs.

Chemical reactions are the result of the transformation that occurs in substances, where atoms rearrange themselves, modifying their initial state. Thus, chemical compounds undergo changes generating new molecules. In turn, the atoms of the elements remain unchanged.

See more about ionic reactions at brainly.com/question/12164558

#SPJ1

7 0
2 years ago
How is a cytoplasm related to a house part
masha68 [24]
Probably it would be like a room since the door would be the cell membrane and the nucleus would be your bed not 100% sure tho
6 0
3 years ago
Metabolic pathways _____.
Mila [183]

The answer is B , i hope this helps

5 0
3 years ago
This group of enzymes digests the majority of ingested fat.
Kitty [74]

Answer:

Option A

Explanation:

Undigested fats include all those fatty acid and lipids which do not have the ability to dissolve in water. This inability makes them difficult elements for digestion. All this undigested fat accumulates and reaches the intestine for digestion as globs. Globs are emulsified by the bile salts and are broken down into smaller fat droplets. The smaller fat droplets have large surface area and hence now they can be acted upon by the fat-digesting enzyme pancreatic lipase. Thus, the first set of enzymes that act upon the undigested fats in the intestine are pancreatic lipase

Hence, option A is correct

5 0
3 years ago
Unlike mosses and ferns, seed plants are able to live on mountains and in deserts. Why did this ability allow seed plants to rep
Pachacha [2.7K]
Seed plants became more versatile and able to live in various climates and areas which others could not, letting seed plants to reproduce much more rapidly 
5 0
3 years ago
Other questions:
  • Which numbered organelle produces ATP during cell respiration?
    5·1 answer
  • Describe several cause and effect types of events that might happen in your refrigerator
    15·1 answer
  • Permatogonia in the seminiferous tubules are located ________. spermatogonia in the seminiferous tubules are located ________. c
    9·1 answer
  • Which of the following is NOT a principle of the Cell Theory? *
    15·1 answer
  • Think about a petal plucked from its flower. Is the petal alive according to the characteristics of life ? Why or why not ?
    7·2 answers
  • Notice in the image of the plant that both oxygen and carbon dioxide enter and exit the plant. Using what you know about photosy
    10·2 answers
  • Which of the following is a system of organs that collects oxygen from the external environment and transports it to the bloodst
    11·1 answer
  • (50 POINTS)
    7·2 answers
  • The macronutrient(s) whose main functions are to contribute the basic building blocks (amino acids) and to synthesize, grow, and
    10·1 answer
  • Other than phosphocreatine breakdown, the fastest way to resupply atp to a muscle is:_______
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!