--%>
Assignment Help - homework help

Relation between the thyroid and hypophysis

Describe the relation between the thyroid and hypophysis?

E

Expert

Verified

The hypophysis secretes TSH, that is, thyroid-stimulating hormone. This hormone hastens the secretion of thyroid hormones (or triiodothyronine and thyroxine, or T3 and T4).

Whenever the plasma concentration of thyroid hormones is very high, this information is detected by the hypothalamus and by hypophysis and this gland decreases the TSH secretion. Whenever the thyroid hormone levels are low, the TSH secretion rises. It is therefore a negative feedback.

Injuries of hypophysis which cause TSH hyposecretion (for illustration, in case of tissue destruction) or hypersecretion (in case, example: of excessive cell proliferation or cancer) can modify the functioning of thyroid gland totally.

   Related Questions in Biology

  • Q : Disadvantages of policy Disadvantages

    Disadvantages of policy No panacea for all problems: policies however intelligence formulates cannot provide a solution to every problem. This is so

    		•
  • Q : Define Continuous Improvement

    Continuous Improvement: Kaizen, also termed as continuous improvement, is a long-term approach to work which systematically seeks to attain small, incremental changes in processes in order to enhance effectiveness and quality. It can be applied to any

    		•
  • Q : Ensembl Define the term Ensembl in

    Define the term Ensembl in Genome databases?

    		•
  • Q : Mitosis An oak tree cell with 14

    An oak tree cell with 14 chromosomes undergoes mitosis. How many daughter cells are formed, and what is the chromosome number in each cell? If the same cell had undergone meiosis, how many cells would have resulted, and what would have been the chromosome number in each?

    		•
  • Q : Description of mitosis-significance of

    Give a brief description of mitosis. And also write down the significance of mitosis?

    		•
  • Q : Six Specific Trends of Organizational

    1) Declining productivity and the Japanese threat: the challenge is to reverse declining trends: ensuring better interplay between management approaches and techniques, and employees. 2) Revolution in middle management:  A big cut in the middle management cadre; restructuring and red

    		•
  • Q : Working of antibodies to neutralize

    Explain the working of antibodies to neutralize antigens?

    		•
  • Q : Substance generated in liver acts in

    Name the substance generated in the liver which acts in the small intestine throughout digestion? How does that substance perform in the digestive process?

    		•
  • Q : Perceptual Distortion - Organizational

    This occurs because of attribution on two counts: I. Fundamental attribution error: the tendency to underestimate the influence of external factors and overestimate the influence of internal factors when making judgments about the behavior of others. II. S

    		•
  • Q : Techniques of Scientific Management

    Techniques of Scientific Management   Time Study : Time study is the technique used to measure the time that may be take

    		•