Lecture 5 Skeletal And Muscular Systems Flashcards
What’s part of Skeletal system?
Bones
Cartilage
Ligaments & Tendons
Joints
What’s part of muscular system?
Skeletal
Smooth
Cardiac
Functions of skeleton
Support the body
Function of bones
Protect soft organs
Store minerals and fat
Blood cell formation
Adult skeleton has
206 bones
How much bones do humans have at birth?
300
Types of bone tissue
Compact bone (dense)
Spongy bone (not dense)
Function of bone marrow
Produce blood cells
5 types of bones
Long bones
Short bones
Flat bones
Sesamoid bones
Irregular bones
Is bone a living tissue?
Yes they are
Types of bone cells
Osteocytes (Mature Blood Cells)
Osteoblasts (Bone-forming cells)
Osteoclasts (Bone-destroying cells)
What is it called when osteoblasts and osteoclasts repair a broken bone?
Bone remodeling
Types of cartilage
Elastic
Hyaline
Fibro
What are Tendons?
Flexible but inelastic cord of fibrous tissue attaching muscle to bone
What are ligaments?
Short, but tough and flexible tissue which connects two bones/cartilages/ joints
4 types of joints
Ball and Socket joint
Hinge joint
Limited movement joint
Immovable joint
What’s part of Axial skeleton?
Skull & spinal column
What’s part of Appendicular skeleton?
Limbs and girdle
Function of skull
Protects brain and meninges and eyes and ears
How many bones does skull have
22
What are the types of muscles?
Cardiac muscle
Skeletal muscle
Smooth muscle
