Skeletal System (1+2) Flashcards
How many bones are in a baby?
300
What are the five functions of the skeletal system?
- Movement
- Support of posture
- Protection of major organisms
- Makes blood
- Storage of minerals
What are the two sections the skeletal system is divided into?
Axial and appendicular
Axial skeleton is
Skeleton which consists of the skull, vertebrae, and ribs
Appendicular skeleton is
Skeleton which includes the pelvic girdle and the bones of the arms and legs
Long bones
Femur, humorous
Short bone
Patella, carpals, tarsals
Flat bones
Ribs, pelvis
Irregular bones
Vertebrae, mandible
What are the two types of bone tissue
Compact and cancellous
Compact bone
Dense, smooth, strong
Cancellous bone
Spongy and lightweight
The main shaft of the long bone is called the
Diaphysis (composed of compact bone)
The two ends of the bone are called
Epiphysis (composed of cancellous bone)
What does the inside cavity of the bone contain?
Bone marrow
What are the two types of bone marrow?
Red and yellow bone marrow