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Endocrine System. 2011 Summary. Body conditions are controlled by which systems?. The nervous system The endocrine system. What are glands?. Glands are structures that secrete substances. Name the 2 types of glands?. Exocrine Endocrine.

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Endocrine system

Endocrine System

2011

Summary


Body conditions are controlled by which systems
Body conditions are controlled by which systems?

  • The nervous system

  • The endocrine system


What are glands
What are glands?

  • Glands are structures that secrete substances


Name the 2 types of glands
Name the 2 types of glands?

  • Exocrine

  • Endocrine


What is the difference between an exocrine and endocrine gland
What is the difference between an exocrine and endocrine gland?

  • Exocrine – release their products into ducts

  • Endocrine – release their products (hormones) directly into the bloodstream



Give 2 examples of exocrine glands
Give 2 examples of exocrine glands? gland?

  • Salivary glands

  • Mammary glands

  • Gastric glands

  • Sweat glands


What is a hormone
What is a hormone? gland?

  • Chemical messenger

  • Made of protein or steroid

  • Produced by endocrine gland

  • Carried in the bloodstream

  • To where is has a specific effect



Can you name the 10 major endocrine glands
Can you name the 10 major endocrine glands gland?

A

B

C

D

E

G

H

I

J

K


Can you name a hormone secreted from each gland
Can you name a hormone secreted from each gland gland?

ADH

Melatonin

FSH, LH, GH

Parathormone

Thyroxine

Thymosin

Adrenaline

Insulin

Oestrogen

Testosterone


For a named hormone describe i deficiency symptoms ii excess symptoms iii corrective measures
For a named hormone describe: gland?(i) Deficiency symptoms(ii) Excess symptoms(iii) Corrective measures?

  • Thyroxine – from thyroid, controls metabolism

  • Deficiency symptoms – reduced metabolism, lack of energy, weight gain, myxoedemia& goitre

  • Corrected by – Thyroxine tablets or iodine

  • Excess symptoms – increased metabolic rate, weight loss, bulging eyes, anxiety, Graves’ disease

  • Corrected by – surgery removing part of thyriod


How are thyroxine levels controlled in the body
How are Thyroxine levels controlled in the body? gland?

  • Negative feedback

  • Low Thyroxine levels stimulate the pituitary to release TSH

  • Thyroid produces Thyroxine

  • Normal Thyroxine levels inhibit TSH

  • Thyroid wont produce Thyroxine


What are anabolic steroids what is the danger with using them
What are anabolic steroids? gland?What is the danger with using them?

  • Drugs that build up muscle

  • Can lead to liver & adrenal disorders


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