What is a skeletal system?
protects and supports body organs, and provides frameworks the muscles use to cause movement. Blood cells are formed within bones. Bones store minerals.
What is cartilage?
Flexible connective tissue
What is the periosteum?
the tough membrane that covers the bone
What is a joint?
where two or more bones meet
What are ligaments?
Connect bone to bone
What is arthritis?
disease that causes inflammation of the joints
What is osteoporosis?
Bone disease in which the bones become brittle and fragile
About how many bones does a human skeleton have?
more than 200 bones
Bone provides _________________ for the body
support
The ______________ system and the _______________ system work together to move your body.
skeletal, muscular
Your skull protects the soft, fragile ______________ of your ______________ from damage.
tissue, brain
Red blood cells are produced inside your ____________.
bones
Bones store _____ and _____
fat and calcium
Calcium is needed for what?
Strong bones
When the body needs calcium, it is _____________ from the ___________ into the blood.
released, bones
There are two main types of bone, what are they called?
compact and spongy
A bone is an organ composed of ____________ tissue.
living
When you are born, you are born with _________ instead of bone.
cartilage
As you grow, your cartilage is gradually replaced by _________.
bone
The insides of most bones contain a soft tissue called _________ ____________.
bone marrow
Name the two types of bone marrow?
red marrow and yellow marrow
Spongy bone tissue is less dense than a _____________ bone.
dense
Compact bone tissue is a dense web of ________.
fibers
Skeletal systems contain two types of joints-name them?
immovable(unable to move) and movable
a break in a bone is called a ___________.
fracture
True or false: broken bones are able to repair themselves but it is a slow process.
True
True or false: Broken bones DO NOT need to be held together in order for them them heal themselves.
False
One of the best ways to keep bones healthy is to?
exercise and healthy diet
Without exercise, bone _________ and lose __________.
weaken, mass
What 2 vitamins keep your bones strong?
Calcium and Vitamin D
What is the difference between cartilage and ligaments?
Ligaments: tissues that connect bones to other bones.
Cartilage: strong, flexible tissue that covers the ends of bones to stop friction.
What is homeostasis?
process by which organisms maintain a relatively stable internal environment
What is a tissue?
group of cells with similar structure and function
What is the muscular system?
made up of the muscles that allow you to move
What is the dermis?
middle layer of skin, below epidermis
What is the epidermis?
Outer layer of skin
What is the integumentary system?
consists of skin, mucous membranes, hair & nails. This system also serves as a barrier to pathogens & helps regulate body temperture.
Four functions of bones?
1. Movement
2. Protect internal organs
3. Store calcium and phosphorus
4. Make blood cells (in bone marrow)
11 organ systems of the body
integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, reproductive
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