Acts as a system of levers that muscles pull against to create motion. Hematopoiesis: Red bone marrow produces blood cells.
Encloses vital organs (e.g., the skull protects the brain; ribs protect the heart and lungs). rabochaia tetrad 8 klass otvety kosti skeleta sonin sapin
Primarily collagen proteins, which provide flexibility and elasticity . Acts as a system of levers that muscles
The workbook for by N.I. Sonin and M.R. Sapin ("Human: Health and Biology") contains several key exercises regarding the skeletal system. 1. Functions of the Skeleton the skull protects the brain
Bones are living tissues with a complex chemical makeup that changes with age:
Stores essential minerals like calcium and phosphorus. 2. Chemical Composition of Bones
Mainly calcium and phosphorus salts (hydroxyapatites), which provide hardness and strength .