دفعتي اولا الحمد لله وصلنا لنهاية السنة
ان شاء الله كلنا في ثانية ❤️
والقناة حنخليها للاحتياط ، ادعولي بس نصفي موادي كلهن من الدور الاول وربي يوفقنا جميعا ❤️❤️❤️❤️

Type of cells of bone osteoprogenetor osteocyte osteoblast osteoclast

Muscle is classified into three types according to their structure and function: Skeletal muscle cells - striated, voluntary control.
Cardiac muscle cells - striated, involuntary control.
Smooth muscle cells - nonstriated, involuntary control.
مرات تستحقوله

Platelets
Structure & function
Biconvex disklike cell fragments
No nucleus
Bounded by plasma membrane
Have peripheral hyalomere and central zone granulomere
Function ➡️
to prevent and stop bleeding or
Prevent blood loss

كل كولاجين وين مكانه مهم

Different

WBC
They are called leucocyte , color less (no Hb) normal total number 4000_11000mm^3
According to the type of granules & the shape of their nuclei divided in two group
Granulocytes ➡️two type of granules specific & azurophilic
Specific ➡️ neutrophils & eosinophils& basophils
Agranulocytes ➡️ don't have specific granules but they do contain azurophilic granules (lysosome)
This group include lymphocytes & monocytes
هضا لما يقولوكم احكولي ع خلايا دم البيضاء