Skeleton and Joint | One Shot Video
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- Опубліковано 25 січ 2025
- Skeleton and Joint | One Shot Video
Bone Histology:
Bone is a rigid, calcified tissue that makes up the human skeleton. It is composed of cells, collagen fibers, and mineralized extracellular matrix. The primary cells in bone tissue include:
Osteoblasts: Cells responsible for bone formation.
Osteocytes: Mature bone cells that maintain the bone matrix.
Osteoclasts: Cells involved in bone resorption (breakdown).
The extracellular matrix is rich in calcium phosphate crystals, providing bone with its hardness. Bone tissue can be categorized into:
Compact Bone (Cortical Bone): Dense and forms the outer layer of bones.
Spongy Bone (Cancellous Bone): Less dense, found in the interior of bones, with a lattice-like structure.
Cartilage Histology:
Cartilage is a flexible, semi-rigid connective tissue that provides cushioning and support in joints. It consists of chondrocytes (cartilage cells) embedded in a matrix rich in collagen fibers and proteoglycans. There are three main types of cartilage:
Hyaline Cartilage: Most common, found in joints, the nose, and respiratory passages.
Elastic Cartilage: More flexible, found in the ear and epiglottis.
Fibrocartilage: Strongest type, found in intervertebral discs and the menisci of the knee.
Cartilage lacks blood vessels (avascular), so nutrients are supplied by diffusion from surrounding tissues.
Human Endoskeleton:
The human endoskeleton is an internal framework composed of bones and cartilage. It provides structural support, protection for vital organs, and facilitates movement through the attachment of muscles. The human skeleton is divided into two parts:
Axial Skeleton: Includes the skull, vertebral column, and rib cage. It supports the central axis of the body.
Appendicular Skeleton: Comprises the limbs and girdles (shoulder and pelvic girdles), allowing for movement and interaction with the environment.
Joints:
Joints (articulations) are the points where two or more bones meet. They allow for movement and flexibility. Joints can be classified based on their structure and function:
Fibrous Joints: Immovable, connected by dense connective tissue (e.g., sutures in the skull).
Cartilaginous Joints: Slightly movable, connected by cartilage (e.g., intervertebral discs).
Synovial Joints: Freely movable, characterized by a joint cavity filled with synovial fluid (e.g., knee, elbow). There are several types of synovial joints, including hinge, ball-and-socket, and pivot joints.
These components of the human skeletal system work together to support the body, protect organs, and enable movement.
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Allah tala ap sir asim ko is duniya mein aur akhirat mein itna ajar dein ke wo boht khush hojayein ameen 🤲
you deserve some real appreciation yoohoooooo
Behtarren sir🎉
These Lectures are still so good like first year lectures👍👍👍
Thankyou sir and pls next coordination cause its lengthy
Following g ur one shot lectures sir ♥️
sir with due respect first of all thank you for providing us such a channel that we can easily study our HSC syllabus but sir i cant find chapter no 7,8,9,10 from 1st year book ...plz guide if you didn't uploaded the video please sir its a humble request please post those videos also. I personally like the way you teach and it is hard for me to shift from one teacher to other because everyone has different methods of teaching. Sir i am waiting for your response i will be grateful if you reply me
Sir amazing lecture sir please tell me the best teacher of physics and chemistry
Sir thanks for this lecture and plz upload nervous and chemical coordination
Sir kindly upload one shot reproduction and coordination system
Waiting for nervous and chemical co-ordination
EAST OR WEST ASIM SIR IS THE BEST ❤❤❤
Cartilage is not a hard connective tissue ❌ , cartilage is a soft flexible form of connective tissue 💯
Bhai ghalti ho jati wo bhi insan hae aur cartilage soft and flexible hae humae pta hae these lecture are best
Bhai cartilage is hard connective tissue as compared to other connective tissue except bone it is just soft as compared to bone, cartilage present in nose is ain't soft bro
Very nice 😊😊😊😊😊😊
🔥🔥
Sir thankyoo so much kab sy mera ye chapter pending main tha srf apke lecture kei liye❤❤❤❤
Asalam O alaikum sir ❤ thank you so much sir ❤😊 sir please or bhi chapters upload Karen please 🙏
Lajawab❤❤❤
Masha Allah
❤❤❤
Sir please chapter wise mcqs and past paper b krwain
Sir screen half ha display problem😊
Sir please upload coordination and control lecture
Thankyouuu so much sir
sir waiting for biology msqs and if add animations to lectures it would be more interesting
Is cortical bone also called compact bone?
Yes
Sir g please upload the second year biology in one shot lectures quickly sir hame apki baghir samag NAHI araha
Sir endosteum is inner or outer lining of medullary canal?
Thanks Sir
Aslam o alaikum sir homeostasis pr one shot video banaen please apke one shot wale lectures bohot zabrdast hote hain✨🙌🏼
its not included in the mdcat syllabus for 2024 (only if you are an aspirant of this year)
Mashallah ❣️
Brillant lec
Sir , kindly koi test session start karey reconduct K liye...(for Sindh according to IBA) Or humein guidance bhi dey
sir yah chapter humans par tha but mcqs main plants ka zyada a raha hai q phir plant ka bhi parhay yah nh
How are you friends
bss sir app jal hi nervous system ka lecture upload kre
Sir plz remaining lactures b jalddiii jaldiii upload karen
Sir bones to include hi nahi ha mdcat syllabus mein sirf Cartilage and Joints and arthirites etc ha. Bones bhi parhna ha?
Sir what is the mic you use?
Boya
Sir plzz Nerve systam uploaded kro
Assalamualaikum, sir aj nervous and chemical coordination sath hi upload kar dijiye plz
Sir y kpk walo kilye beneficial hy
board koi bhi ho concept change nhi hoya
@@eeshalhareem1483 thanks brother lekin pmdc sallybus to diff nahi
@@WaleedKhan-o7m nahi PMDC syllabus same hota bus ye ho skta hai k koi 1 se 2 point apki books m kuch aur hon ya humari mein ya kuch values aagay pichay ho skti hai
@@WaleedKhan-o7m lekin concept nahi badaltay maslan bones its types joints its types unki working functions wo tu dunya ki kisi bhi book m same hongy kuch m details zyada kuch m kam hongi
Aslamualikm sir sindh book mn cartilage soft flexible connective tissue lkha hia hain Is there wright or wrong
So we should follow our province book only
Asslamalikum sir Monday ko.test jalte sy sb lecture upload kr dy Jo rhy gya hai 😊😊😊
Sir if we are provided with the options like Osteocyte and Osteon then which of these called structural and functional unit of bone?
Osteon
@@DrAsimLectures not osteon osteocyte right 👍 hoga
by the way sir
reproduction
chemical coordination
aur kya kya reh gya
waiting❤🎉
Sir g where is MCQS SERIES 😐
Sir chemical coordination Karwaen
شکر کرنا سیکھو اللّٰہ کا بھائی۔۔۔
@@DrAsimLectures❤
@@DrAsimLectures Long march is ready 😂
sir tension k maray halak ho rhy hain @@DrAsimLectures
❤@@DrAsimLectures
Waiting ❤
Sir Muhammad ARAFAT KHAN full PMDC celebris mery UA-cam channel pr jh dukkh
Asalm wailkum sir jii sir ap ek mcqs series' ek book banaye na mashallah se itna acha sumjhty hai ❤😊
❤❤❤❤❤
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AOA sir g kab tk is chapter ki video lecture upload ho gia plz jaild ❤
Raat 8:00 bajay
1❤❤❤
Sir bone healing Endoosteum karwate ha na sir? book maim bhi endopsteum likha hua ha .
Assalamualaikum sir
Female k last chromosomes homologous nhi hota q ??
Hota hai bhai
@@DrAsimLectures sir Dr Akbar shamsi ne btaya k homologous nhi hote
❤
Anyone want sir arafat lectures ( physics) ?
Yes ❤
بچہ اور پیٹرول!😂