Cells/organisms
List these in order:
tissue, organ system, cell, organ, organism
cell, tissue, organ, organ system, organism
What is an organ system?
group of organs that work together, carrying out major functions
True or false
Your body is able to move because of your body's other movements
What is homeostasis
Name 2 body systems
Skeletal, muscular, circulatory, respiratory, integumentary, digestive, excretory, nervous, endocrine, reproductive
What is a cell?
basic unit of structure and function in a living thing
What is the skeletal system
bones, cartilage, ligaments and tendons that protect internal organs
What is a joint?
A place in the body where two bones come together
How do you regulate temperature?
shivering and sweating
Name an organ in your body
Lungs, heart, skin, kidney, liver, brain, etc.
What does the nucleus do?
directs the cell's activities and holds information that controls a cell's function
What is the endocrine system?
glands, such as the thyroid, pancreas, adrenals, ovaries, etc - controls growth and development
Describe the process of breathing in and out
when you breathe in, air goes into your lungs, oxygen moves from lungs to blood stream, you breathe out
hormones from your endocrine system signal the nervous system to make you feel hungry -- after you eat, hormones signal to your brain to make you feel full
What does the respiratory system do?
Takes in oxygen
What is tissue?
A group of similar cells that perform the same function
Describe the nervous system
brain, spinal cord, nerves
a substance you get from food that your body needs to carry out a process
How do your ears help you to maintain homeostasis
inner ear structures help you to keep balance and keep the position of your head
What does the digestive system do?
breaks down foods into sugars and other nutrient molecules that your body can use
What is your epithelial tissue?
tissue that covers the surface of your body
What is the excretory system
skin, lungs, liver, kidneys, etc - removes waste products from the body
Describe a stimulus and a response
stimulus - signal in the environment that makes you react
response - what your body does in reaction to a stimulus
How does your body fight disease?
Immune system fights off diseases
What 2 body parts direct your muscles to move your bones?
brain and spinal cord