People's Education Edition Biology for Grade 8, Volume 1
People's Education Edition Biology for Grade 8, Volume 2
People's Education Press High School Biology Compulsory Course 2
People's Education Edition seventh grade biology volume 1
Beijing Normal University Edition Seventh Grade Biology Volume 2
Beijing Normal University Edition Eighth Grade Biology Volume 1
People's Education Press seventh grade biology book volume 2
Beijing Normal University Edition Seventh Grade Biology Volume 1
Beijing Normal University Edition Eighth Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 1
Jiangsu Education Edition Seventh Grade Biology Volume 1
High School Biology Compulsory Course 1, published by People's Education Press
Jiangsu Education Edition Seventh Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 2
!["Skin and Sweat Secretion" PPT courseware download](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/dfbb4b8e-c3b6-49fb-ae14-c9853246669e.webp)
Category | Format | Size |
---|---|---|
Beijing Normal University Edition Seventh Grade Biology Volume 2 | pptx | 6 MB |
Description
"Skin and Sweat Secretion" PPT courseware download
Part 1: Importing new lessons
The skin is exposed to the outside all year round and comes into contact with many bacteria, so why doesn’t it rot and deteriorate? Some people’s skin is whiter than snow, while others’ skin is as black as charcoal. Why are the skin colors of the human body different? What causes “acne”? Why do people sweat?
learning target
1. Name the structure and function of skin;
2. Explain the formation and discharge of sweat and its significance to the human body.
Skin and sweat secretion PPT, part 2 content: course content
1. The structure of the skin
epidermis
Cuticle: protects and prevents excessive loss of water in the body
Germinal layer: divides to produce new cells
Dermis: Made of dense ________, containing large amounts of __________ and ________, as well as abundant ______ and ______________.
2. Formation and secretion of sweat
When the ambient temperature is high, the capillaries around the sweat glands expand and the blood flow increases. The water, inorganic salts, urea and other substances absorbed by the sweat gland secretory cells from the blood vessels form sweat, which reaches the body surface through the ducts and is excreted.
Skin and sweat secretion PPT, part 3: on-site training
1. The structure in the skin related to regulating body temperature is ( )
A. Epidermis and blood vessels B. Germinal layer and sweat glands
C. Blood vessels and sweat glands D. Sebaceous glands and sweat glands
2. The thick skin on the human palm is commonly known as "callus", and its significantly thickened part belongs to ( )
A.Germinative layer B.Stratum corneum
C. Subcutaneous fat D. Adipocytes
3. Blood flows out after skin abrasion. This is because the blood vessels in the skin are abraded ( )
A. stratum corneum B. germinal layer C. epidermis D. dermis
Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, skin and sweat secretion PPT download, .PPT format;
For more information about the PPT courseware "Discharge of Human Metabolic Wastes from the Skin and Sweat Secretion", please click the Discharge of Human Metabolic Wastes ppt Skin and Sweat Secretion ppt tag.
"Skin and Sweat Secretion" PPT download:
"Skin and Sweat Secretion" PPT download part one content: Course knowledge points Knowledge point 1 Epidermis and dermis constitute the skin 1. Observe the structure of the skin 2. The structure and function of the skin 3. Appendages of the skin hair, sweat glands, sebaceous glands, fingers ( Toes) nails, etc. 【example】..
"Skin and Sweat Secretion" PPT courseware:
"Skin and Sweat Secretion" PPT courseware Part 1: The structure of the skin Epidermis Cuticle Protection Germinal layer Regeneration The dermis is composed of dense connective tissue, containing a large number of elastic fibers and collagen fibers, as well as abundant blood vessels and sensory nerve endings. Skin..
"Skin and Sweat Secretion" PPT:
"Skin and Sweat Secretion" PPT Part One Content: Situation Introduction Skin is exposed to the outside all year round and exposed to many bacteria. Why does it not rot and deteriorate? Some people's skin is whiter than snow, and some people's skin is as black as charcoal. Why are the skin colors of the human body different? What is the cause of acne? What’s the reason? Man-made..
File Info
Update Time: 2024-09-09
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