What is the reaction of the body to threatening, challenging or disturbing events?
What is another term that is often used to describe the body's reaction to stress, preparing a person to either fight the stressor or escape?
stress
fight or flight response
100
What is the name of the area where 2 bones come together?
Give an example of a pivot joint.
joint
the neck vertebrae allow the head to pivot
100
What organ system fights disease?
immune system
100
How many small bones do the vertebrae have?
26
100
What is the process by which an organism's internal environment is kept stable in spite of changes in the external environment?
homeostasis (It is the body's way of staying balanced internally, no matter what happens outside of the body--hot or cold days, etc)
200
What is the connective tissue that is more flexible than bone and makes up the tip of your nose and covers the ends of many bones and acts as a cushion between them?
cartilage
200
What are the spaces in bone that contain soft a connective tissue called?
What is the function of yellow bone marrow?
marrow
Yellow bone marrow stores fat until the body needs it for energy.
200
What percent of an adult's body weight is bone?
20%
200
What are the strong connective tissues that hold the bones in movable joints together?
ligaments
200
How do the skeleton and muscles helps the body move?
the muscles pull on the bones to make the body move
300
What chemical is produced by the body during times of stress?
adrenaline
300
What does red bone marrow produce?
the body's blood cells
300
What tissue provides support for your body and connects all its parts?
connective tissue
300
Name a structure that is composed of different kinds of tissue.
organ (examples: heart, lungs, skin, liver, kidneys)
The skin is the largest organ.
300
How does a hinge joint move?
backwards and forwards
400
What is the cause of osteoporosis and its effect on the body?
It is a condition caused by mineral loss (loss of calcium and phosphorous) in the bones which makes them become weak and break easily.
400
What joints are immovable?
the skull is joined at immovable joints
400
Describe the 3 body systems that are involved when you prepare a meal and eat it.
The skeletal and muscular system enable you to move your body.
The digestive system is at work in your mouth, stomach and intestines,breaking down food you eat.
The circulatory system absorbs the nutrients from food and circulates them throughout the body.
400
What are the body's physical responses to stress.
(Name four)
more blood goes to your brain
pupils of your eyes widen
heart rate increases
digestive system slows
sweating increases
hearing ability increases
muscles tense
400
Which joint provides the greatest range of movement?
The shoulder joint, because you use it to move the arm in so many directions.
500
Name at least 2 effects of long term stress on a person.
You become tired, irritable, and have trouble getting along with others.
500
How do you know that bones are alive?
They are made up of living cells and tissues such as blood and nerves. Bones form new bone tissue as a person grows or when a bone is broken. Dead tissue does not have these characteristics.
500
What organ system detects and interprets information from the environment outside the body and from within the body and controls most body functions?
nervous system
500
Name the 3 of the 5 major functions of your skeleton.
1. Provides shape and support
2. Enables you to move
3. Protects your internal organs.
4. Produces blood cells
5. Stores materials like fat until your body needs them.
500
Give two examples of how your body maintains homeostasis.
The body maintains its balance when:
The brain sends signals that result in you feeling hungry or thirsty, causing you to eat and get nutrition.
When you get sick your body temperature will rise, and return to normal when you get better.