Jaringan Epitel pada jaringan hewan
Summary
TLDRIn this video, Weti Dwiningsih explains epithelial tissues in animals, a key topic for 11th-grade biology. She introduces the four types of animal tissues—epithelial, muscle, connective, and nervous—then focuses on epithelial tissue. The discussion covers its classification based on shape (squamous, cuboidal, columnar), their functions (protection, absorption, secretion, excretion), and where they are found in the body (skin, kidneys, lungs). She also explains specialized epithelial tissues, including transitional and glandular types, detailing their roles and examples. The video is informative for students learning about animal tissue structure.
Takeaways
- 📚 Animal tissue is divided into four types: epithelial tissue, muscle tissue, connective tissue, and nerve tissue.
- 🔬 Epithelial tissue is the focus, categorized into three shapes: squamous, cuboidal, and columnar.
- 🛡️ Characteristics of epithelial tissue include tightly packed cells, high regeneration rate, presence of microvilli, and absence of blood vessels.
- ⚙️ Functions of epithelial tissue: protection, transport, absorption, secretion, and excretion.
- 🔄 Squamous epithelium has two types: simple and stratified. Simple is involved in diffusion, osmosis, and filtration; stratified provides protection.
- 🔍 Cuboidal epithelium is also divided into simple and stratified, functioning in protection, secretion, and absorption, found in nephrons, ovaries, and glands.
- 🍽️ Columnar epithelium (simple and stratified) is primarily responsible for secretion and absorption, found in the stomach, intestines, and gallbladder.
- 🔄 Transitional epithelium undergoes changes between squamous, cuboidal, and columnar forms, found in the bladder.
- 💧 Glandular epithelium contains goblet cells, divided into exocrine (secreting to surfaces, e.g., sweat glands) and endocrine (secreting hormones into blood).
- 🎥 The next video will focus on muscle tissue in animals, covering more details about its structure and function.
Q & A
What are the four main types of animal tissues?
-The four main types of animal tissues are epithelial tissue, muscle tissue (including smooth, striated, and cardiac muscle), connective tissue (including blood, bone, and adipose tissue), and nervous tissue (neurons).
What are the three types of epithelial tissue based on cell shape?
-The three types of epithelial tissue based on cell shape are squamous epithelium (flat), cuboidal epithelium (cube-shaped), and columnar epithelium (tall and column-like).
What are the main characteristics of epithelial tissue?
-Epithelial tissue has tightly packed cells, a high regeneration capacity, microvilli for absorption, and lacks blood vessels, receiving nutrients via diffusion.
What are the functions of epithelial tissue?
-Epithelial tissue functions include protection (covering underlying tissues), transport of substances between tissues, absorption (such as in the intestines), secretion (production of substances like enzymes), and excretion (removal of waste products).
Where can you find simple squamous epithelium, and what are its functions?
-Simple squamous epithelium is found in the lining of blood vessels (endothelium), kidney Bowman's capsule, and alveoli of the lungs. Its functions include diffusion, osmosis, filtration, and excretion.
How does the function of stratified squamous epithelium differ from simple squamous epithelium?
-Stratified squamous epithelium provides protection against abrasion and is found in areas such as the skin, esophagus, and vagina, whereas simple squamous epithelium focuses on diffusion and filtration.
What are the functions of simple cuboidal epithelium, and where is it located?
-Simple cuboidal epithelium functions in protection, secretion, and absorption. It is located in areas such as kidney nephrons, ovaries, salivary glands, thyroid glands, pancreas, and the lens of the eye.
What is the function of stratified cuboidal epithelium, and where is it found?
-Stratified cuboidal epithelium provides protection, absorption, and secretion. It is found in the ducts of sweat glands.
Where is simple columnar epithelium found, and what is its primary function?
-Simple columnar epithelium is found in the stomach, small intestine, and gallbladder. Its primary functions are secretion and absorption.
What are the main differences between exocrine and endocrine glands?
-Exocrine glands secrete substances like enzymes or sweat through ducts to external or internal surfaces (e.g., salivary glands, sweat glands), while endocrine glands release hormones directly into the bloodstream or lymphatic system (e.g., thyroid, adrenal glands).
Outlines
📚 Introduction to Epithelial Tissues in Animal Cells
In this segment, Weti Dwiningsih introduces the topic of epithelial tissues as part of the study of animal tissues for 11th-grade students. She outlines the four main types of animal tissues: epithelial, muscle (including smooth, striated, and cardiac), connective (comprising blood, bone, and supportive tissue), and nervous tissues (neurons). The focus is on epithelial tissue, discussing its types based on shape: squamous, cuboidal, and columnar. Key characteristics of epithelial tissue are emphasized, such as tightly packed cells, high regenerative capability, and the absence of blood vessels. The functions include protection, nutrient transport, absorption, secretion, and excretion.
🧪 Types of Epithelial Tissues and Their Functions
This section delves into the three types of epithelial tissues: squamous, cuboidal, and columnar. The first type, squamous epithelial tissue, comes in two forms: simple squamous, found in blood vessels and the lungs, and stratified squamous, present in areas requiring protection such as the esophagus and skin. The second type, cuboidal epithelial tissue, also has two forms: simple cuboidal, involved in protection and absorption, and stratified cuboidal, found in sweat gland ducts. Lastly, columnar epithelial tissue is discussed, with simple columnar aiding in secretion and absorption in organs like the stomach and intestines, while stratified columnar functions in protection and secretion in the urethra and respiratory tract.
🔄 Specialized Epithelial Tissues and Glands
The focus here is on transitional epithelial tissue, which transitions between different forms (squamous, cuboidal, and columnar) and is found in the urinary bladder. Another highlighted type is glandular epithelium, which contains goblet cells responsible for secretion. Glandular epithelium is divided into two types: exocrine glands, which secrete substances like enzymes and sweat to external surfaces through ducts, and endocrine glands, which secrete hormones directly into the bloodstream. Examples of these glands include the pancreas, sweat glands, thyroid gland, and adrenal glands. The video concludes with a reminder to like and subscribe for future discussions on muscle tissues.
Mindmap
Keywords
💡Epithelial Tissue
💡Squamous Epithelium
💡Cuboidal Epithelium
💡Columnar Epithelium
💡Transitional Epithelium
💡Glandular Epithelium
💡Exocrine Glands
💡Endocrine Glands
💡Absorption
💡Secretion
Highlights
Introduction to epithelial tissue as part of the four main animal tissues.
The four main types of animal tissues are epithelial, muscle, connective (including blood and bone), and nervous tissue.
Epithelial tissue is divided into three types based on shape: squamous (flat), cuboidal (cube-shaped), and columnar (tall).
Key characteristics of epithelial tissue include tightly packed cells, high regenerative capacity, the presence of microvilli, and the absence of blood vessels (nutrients diffuse in).
Functions of epithelial tissue include protection, transportation of substances between tissues, absorption of nutrients, secretion of necessary substances, and excretion of waste.
Simple squamous epithelium functions in diffusion, osmosis, filtration, and excretion. It's found in blood vessels, kidney capsules, and lung alveoli.
Stratified squamous epithelium functions in protection and is found in the vagina, esophagus, and skin.
Simple cuboidal epithelium functions in protection, secretion, and absorption, found in kidney nephrons, ovaries, salivary glands, thyroid gland, pancreas, and the eye lens.
Stratified cuboidal epithelium functions in protection, absorption, and secretion, found in sweat gland ducts.
Simple columnar epithelium functions in secretion and absorption, found in the stomach, small intestine, and gallbladder.
Stratified columnar epithelium functions in protection and secretion, found in the urethra, trachea, larynx, pharynx, and salivary glands.
Transitional epithelium has the ability to transition between squamous, cuboidal, and columnar forms, found in the bladder.
Glandular epithelium contains goblet cells that secrete substances and includes two types of glands: exocrine (secrete to body surfaces via ducts, e.g., sweat glands) and endocrine (secrete hormones directly into blood, e.g., thyroid gland).
Exocrine glands release substances like enzymes via ducts, found in the stomach, pancreas, salivary glands, and sweat glands.
Endocrine glands release hormones directly into the bloodstream, found in glands like the thyroid, thymus, and adrenal glands.
Transcripts
Hai Hai assalamualaikum warahmatullahi
wabarakatuh ketemu lagi dengan saya Weti
dwiningsih kali ini kita akan membahas
materi kelas 11 tentang jaringan epitel
pada jaringan hewan disimak baik-baik ya
kita bahas dulu jaringan hewan ya
jaringan hewan terdiri dari empat macam
jaringan yang pertama adalah jaringan
epitel yang kedua adalah jaringan otot
yang terdiri dari otot polos lurik dan
jantung yang ketiga adalah jaringan
penyokong yang terdiri dari jaringan
ikat jaringan darah dan jaringan tulang
dan yang keempat adalah jaringan saraf
atau neuron
on nah kali ini kita akan membahas
tentang jaringan epitel jaringan epitel
terdiri dari tiga macam berdasarkan
bentuknya yang pertama adalah epitel
pipih yang kedua jaringan epitel kubus
atau kuboid dan yang ketiga jaringan
epitel silindris atau kolumnar kita
bahas satu persatu ya ciri-ciri jaringan
epitel yaitu sel-selnya tersusun rapat
karena sebagai pelindung yang kedua
selnya memiliki sifat degenerasi tinggi
artinya aktif membelah yang ketiga
memiliki mikrovili yang keempat tidak
mengandung pembuluh darah sehingga
nutrisi secara difusi
Hai nah fungsi dari jaringan epitel
adalah yang pertama melindungi jaringan
yang ada dibawahnya sebagai proteksi
yang kedua transport zat antar jaringan
yang ketiga absorbsi penyerapan sari
makanan yang keempat sekresi yaitu
menghasilkan zat yang masih diperlukan
oleh tubuh sedangkan yang keempat
ekskresi membuat membuang zat sisa
metabolisme Nah kita bahas satu persatu
ya bentuk jaringan epitel yang pertama
kita bahas epitel pipih atau sekolah
Mosa terdiri dari dua macam epitel pipih
selapis yang mempunyai fungsi
G difusi osmosis filtrasi atau
penyaringan dan ekspresi atau pembuangan
terdapat pada endotelium pembuluh darah
kapsul Bowman ginjal dan alveolus
paru-paru yang kedua ada epitel pipih
berlapis kalian bandingkan ya dengan
yang selapis fungsinya sebagai proteksi
atau perlindungan terdapat pada vagina
esofagus atau kerongkongan dan kulit
yang kedua bentuk epitel kubus terdiri
dari dua macam epitel kubus selapis
fungsi dari epitel kubus selapis adalah
sebagai pelindung atau proteksi sebagai
sekretorik dan absorpsi atau penyerapan
epitel kubus selapis terdapat pada
nah nefron ginjal ovarium kelenjar ludah
kelenjar tiroid pankreas dan lensa mata
bentuk yang kedua adalah epitel kubus
berlapis kalian bandingkan ya gambarnya
epitel kubus berlapis mempunyai fungsi
sebagai proteksi absorpsi atau
penyerapan dan sekresi epitel kubus
berlapis terdapat pada saluran kelenjar
keringat nah bentuk yang ketiga adalah
epitel silindris terdiri dari dua macam
yaitu epitel silindris selapis epitel
silindris selapis berfungsi sebagai
Secret si dan absorbsi epitel silindris
selapis terdapat
pada lambung usus halus dan kantung
empedu bentuk yang kedua adalah epitel
silindris berlapis kalian bandingkan ya
gambarnya dengan yang selapis epitel
silindris berlapis mempunyai fungsi
sebagai perlindungan dan sekresi epitel
silindris berlapis terdapat pada uretra
trakea laring faring dan kelenjar ludah
bentuk yang keempat ada epitel
transisional artinya terjadi transisi
antara epitel pipih epitel silindris dan
epitel kubus epitel transisional ini
terdapat pada kandung kemih atau vesika
urinaria yang kelima adalah epitel
kelenjar yaitu epitel yang mempunyai sel
Goblet
untuk mengeluarkan zat atau Secret
terbagi menjadi dua kelenjar eksokrin
yaitu menyalurkan sekretnya ke suatu
permukaan tubuh melalui saluran
secretnya berupa enzim atau zat yang
lain contohnya kelenjar lambung kelenjar
pankreas kelenjar ludah dan kelenjar
keringat yang kedua ada kelenjar
endokrin yang mengeluarkan sekret
langsung ke dalam fasikuler darah atau
limfa sekretnya berupa hormon contohnya
pada kelenjar hipofisis kelenjar tiroid
yang mengeluarkan hormon tiroksin
kelenjar thymus dan kelenjar adrenal Nah
demikian tadi penjelasan tentang
jaringan epitel pada jaringan hewan
video selanjutnya kita akan membahas
tentang jaringan otot pada jaringan
hewan jangan lupa ya like dan subscribe
yaaa
terima kasih wassalamualaikum
warahmatullahi wabarakatuh
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