"Human Hormone Regulation" PPT download

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"Human Hormone Regulation" PPT download

Part I: Endocrine glands and hormones

(1) Exocrine glands and endocrine glands

(1) Concept

Exocrine glands: Some glands, such as sweat glands, salivary glands, liver, etc., can discharge their secretions through ducts. These glands are called exocrine glands.

Endocrine glands: Some glands have no ducts, and their secretions directly enter the capillaries in the glands and are transported throughout the body along with the blood circulation. These glands are called endocrine glands.

(2)Endocrine system

Concept: The sum of endocrine glands.

Composition: pituitary gland, thyroid, thymus, adrenal gland, pancreatic islets, gonads (ovaries or testicles)

(3) The difference between exocrine glands and endocrine glands

(2) Hormones

(1) Concept

Hormones: Chemical substances secreted by endocrine glands that have special effects on the body are called hormones.

(2) Features and functions

Features: Less content, greater effect

Function: Regulates human body's metabolism, growth and development, reproduction and other life activities.

(3) Type

Human body's hormone regulation PPT, Part 2: The regulatory effect of growth hormone

(1) Secretion site: pituitary gland

(2) Function: Regulate the growth and development of the human body

(3) Symptoms of abnormal secretion

(1) Insufficient secretion of growth hormone in childhood - dwarfism

Symptoms: Growth retardation, short stature, normal intelligence.

(2) Excessive secretion of growth hormone in childhood - gigantism

Symptoms: Excessive growth of various body parts and unusually tall stature.

(3) Excessive secretion of growth hormone in adulthood - acromegaly

Symptoms: Significant growth of limb organs, manifested as hypertrophy of hands, feet, nose, mandible and other parts.

Human body's hormone regulation PPT, the third part: the regulatory effect of thyroid hormone

(1) Secretion site: thyroid gland

(2) Function: Promote metabolism, growth and development, and increase the excitability of the nervous system.

(3) Symptoms of abnormal secretion

(1) Excessive thyroid hormone secretion in adults - hyperthyroidism (hyperthyroidism)

Symptoms: Increased food intake but body weight loss, easily agitated mood, insomnia and forgetfulness, high heart rate and respiratory rate.

(2) Insufficient secretion of thyroid hormone in childhood - cretinism

Symptoms: short body, mental retardation, underdevelopment of reproductive organs.

(3) The adult body is deficient in iodine and lacks (less) thyroid hormone synthesis - endemic goiter (commonly known as: big neck disease)

Human body's hormone regulation PPT, Part 4: Regulation of insulin

(1) Secretory site: Pancreatic islets (distributed in the pancreas)

(2) Function: Regulates the absorption, utilization and transformation of sugar in the body. (lower blood sugar)

(3) Symptoms of abnormal secretion

(1) Insufficient insulin secretion-diabetes

Symptoms: Sugar in urine. Polydipsia, polyphagia, polyuria, and weight loss. ("Three more and one less")

(2) Excessive secretion of insulin - hypoglycemia

Symptoms: weakness, sweating, palpitations, tremors, hunger, difficulty concentrating, visual impairment, confusion, and even convulsions and coma. Sustained severe hypoglycemia can lead to irreversible brain damage and even death.

Keywords: Zhejiang Education Edition eighth grade science PPT courseware free download, human body hormone regulation PPT download, .PPT format;

For more information about the "Human Body's Hormone Regulation" PPT courseware, please click on the Human Body's Hormone Regulation ppt tab.

"Human Hormone Regulation" PPT courseware:

The first part of the PPT courseware "Hormonal Regulation of the Human Body": The difference between endocrine glands and exocrine glands: The ducts have no destination for secretions. They directly enter the capillaries in the glands and enter the digestive tract or are excreted from the body. Examples include thyroid, pituitary, pancreatic islets, ovaries, and testicles. ..

"Human Hormone Regulation" PPT:

"Hormone Regulation of the Human Body" PPT Part One: Independent Study Guide: Carefully read p86-p90 of the textbook silently, find out the answers to the thinking questions and draw them. The time is 5 minutes. 1. What are the two types of glands in the human body? Please give an example. 2. What are hormones? different..

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Update Time: 2024-11-20

This template belongs to science courseware Zhejiang Education Edition Eighth Grade Science Volume 1 industry PPT template

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