Big Ideas
What is the big idea of section 1?
Your skeletal and muscular system work together to make your body move.
framework of bones and other tissues that supports the body
Skeletal System
What are two functions of the skeletal system?
Bones-206 bones in adult body; Produce and store materials needed by body; Marrow: tissue in center of some bones; Makes millions of blood cells each day; Store fat and calcium
Joints- Provide flexibility and enable the skeleton to move; Ligament: type of connecting tissue that holds bones to other bones at joint (do not protect bones-cartilage protects); 2 kinds: Immovable and movable
Various connective tissues- Tendon: type of connecting tissue that joins muscles to bones and muscles to muscles; Stabilize joints and keep them from moving out of place
Why do you think poor posture can cause backaches?
answers will vary
How many bones are in the human body?
more than 200 (206 adult)
What is the big idea of section 2?
Your nervous system controls and sends messages throughout your body.
What are neurons?
cells that make up nervous system
What is the difference between CNS and PNS?
CNS: Includes brain and spinal cord
PNS: Includes nerves that connect the CNS to all parts of body
List 5 voluntary muscle movements that you make each day.
Answers vary
(Anything you have to think about to do)
brain disorder that causes shaking and stiffness of arms and legs
Parkinson's Disease
What is the big idea of section 3?
Your heart is the center of your circulatroy system, and your lungs are the center of your respiratory system.
What are the main organs of the respiratory system?
nose
mouth
pharynx
larynx
trachea
bronchi
lungs
diaphragm
What part of the respiratory system helps create sounds for you?
Larynx
Why is it important to know your blood type?
Answers vary
Which blood type is a universal DONOR?
Which blood type is a universal RECIPIENT?
O-
AB+
What is the big idea of section 4?
Your digestive and excretory systems process the food you eat for use by your body.
Define digestive system
group of organs that work together to break down foods into substances that your cells can use
In what body part does most of your digestion take place?
Small intestine
Imagine you just ate a huge meal from McDonalds. Now you have a stomachache. Why could that be?
vary
When else could a woman have heartburn?
Pregnancy
What is the big idea of section 5?
Your body has glands and organs that allow it to function and grow.
Define metabolism
process by which the body gets energy from food
What does the endocrine system do?
A system of glands throughout the body that regulates body functions
Anthony is feeling stressed and nervous about taking a test. How is Anthony's endocrine system responding to this stress?
Heart rate and blood flow to brain may be increasing, blood sugar/pressure rising, sweat production, bodily processes may slow down, adrenaline may be high
What are your pituitary glands for?
signals other endocrine glands to produce hormones when needed
What is the big idea of section 6?
Your immune system helps your body defend itself against infections.
A combination of body defenses made up of the cells, tissues, and organs that fight pathogens in body
Immune System
What does the lymphatic system do in the body?
secondary circulatory system that helps the body fight pathogens and maintains its fluid balance
Why should you avoid drinking from the same container as a friend who has a cold?
Pathogens can move from them to you causing you to get a cold.
What are pathogens?
germs that cause disease and are everywhere