Chapter 7: Skeletal System Flashcards
(139 cards)
What are the Functions of the skeletal system ?
- Support
-movement
-Storage
-Hematopoiesis
Skeletal system protects _________ inside bone cavity
Soft tissue
The skull protects what ?
The brain
The ribs and breastbone protect the ________
Heart and lungs
The primary organs of the skeletal system
Bones
The internal frame work of the body
Skeleton
skeletal muscles attach to ________
Bones
______ organs are in the cavities that surround the breast bones and skeletal muscle
internal
The BLOOD forming tissue
Red bone marrow
Red bone marrow ______
- produce red blood cells
- Transport oxygen
- contains white blood cells
When a muscle _________ and _____________ they pull on bones and move them
Contract , shorten
What are the bones important roles
- Homoestasis
- nerve / muscle function
When calcium __________ normal level , calcium moves out of the blood and into the bones for storage
Exceeds
When calcium _______ below normal level, calcium moves from the bones to blood increasing calcium levels
Decreases
Calcium deposits and withdrawls balance is regulated by ________
Hormones
What gland increases mineralization in bone and decrease blood calcium levels
Thyroid gland = calcitonin (CT)
What gland decrease calcium in bone and increases blood calcium
Parathyroid Gland (PTH)
The cavities inside the bone store ______
Fat
What term is “BLOOD CELL FORMATION“ ?
Hematopoiesis
Hematopoiesis is carried into _____
Red Bone Marrow
SOFT CONNECTIVE TISSUE inside hard walls of the bones
Red Bone Marrow
How many types of major bones ?
4
What are the major bone types ?
Long bong
Short bones
Irregular bones
Flat bones
What shape is a Sesamoid bone ?
Round