"Hormonal Regulation" PPT download

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"Hormonal Regulation" PPT download

Part One: Course Knowledge Points

Knowledge point 1: Hormones are important regulatory substances secreted by the endocrine system

1. Classification of glands

(1) Secretion

Cells release the substances they synthesize, which is called secretion.

(2) gland

Tissues or organs composed of cells with secretory functions are called glands.

(3) Exocrine glands and endocrine glands

2. Endocrine system

The endocrine system is a system composed of various endocrine glands.

3. Hormones and their physiological effects

(1) Concept

In the human body, substances with important regulatory effects secreted by endocrine glands are called hormones.

(2) Hormone content and its effects

The content of hormones in the blood is extremely small, usually only a few micrograms per 100 milliliters of blood, but their regulatory effects are very significant, especially for basic life activities such as metabolism, growth and development, and reproduction. The regulatory effects of hormones are Indispensable.

Hormone Regulation PPT, Part 2: Examination Points

Test points: Reading pictures and analyzing blood sugar regulation

[Example] (2017 Hunan Shaoyang Simulation) The figure below shows the change curve of blood sugar content after eating. The following statement is wrong ()

A. After eating, blood sugar rises because glucose is absorbed into the blood.

B. Curve a represents the changes in blood sugar content of diabetic patients

C. Diabetic patients have high blood sugar due to insufficient insulin secretion.

D. After a normal person eats for 1 hour, the blood sugar level decreases because the stomach is emptied.

Analysis: After a person eats, carbohydrates are decomposed into glucose in the small intestine and then absorbed into the blood. The blood sugar content will rise briefly. The blood sugar concentration drops after 1 hour of eating. This is because insulin promotes the synthesis of glycogen from blood sugar and accelerates the decomposition of blood sugar. . In the figure, the blood sugar content of curve b returns to normal after a brief increase, while the blood sugar concentration of curve a remains at a high concentration. It can be seen that curve b represents the change of blood sugar content of normal people, and curve a represents the change of blood sugar content of diabetic patients; Diabetes is caused by insufficient secretion of insulin.

Answer D

Hormone Regulation PPT, Part 3: Detailed explanations of textbook exercises

1. Regarding neuroregulation and hormone regulation, which statement is incorrect ()

A. Endocrine glands can serve as effectors on reflex arcs, and neurons can also be the targets of certain hormones.

B. The transmission pathway of neuromodulation information is reflex arc, and the way of hormone transmission mainly depends on blood circulation.

C. Each reflex arc has a specific effector, but each hormone does not have a specific site of action.

D. Neuromodulation plays a leading role overall, and hormonal regulation also significantly affects the function of the nervous system.

Tip C

2. Regarding hormones, the correct statement is ()

A. After hormones are produced by endocrine glands, they are released into the blood through ducts.

B. The hormone content in the blood is very small, but its regulatory effect is very significant.

C. Hormones can be carried throughout the body with the blood and have an effect on all tissue cells.

D. Hormones only act on certain tissues because they have specialized transport pathways

Tip B

3. Insufficient growth hormone secretion in childhood may lead to ()

A. Cretinism B. Dwarfism

C. Gigantism D. Diabetes

Tip B

4. The age of patients with acromegaly is generally ()

A.Adult stage B.Adolescent stage

C.Infancy stage D.Each stage of development

Tip A

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, hormone regulation PPT download, .PPT format;

For more information about the PPT courseware "Hormones regulate the human body's self-regulation", please click the "Hormones regulate the human body's self-regulation ppt" tag.

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"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: 2024-11-22

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