Science Flashcards
What do cells do?
Cells work together to form systems of tissues and organs
What is a tissue?
Groups of cells that work together for specific functions.
What is a organ?
Tissues are grouped together in the body to form organs which include brain, heart, lungs, kidney, liver and more
What is an organ system?
Different organs that working together to perform a common function.
What do the stomach, gallbladder, and pancreas do?
They break down the foods we eat.
Muscular-
Skeletal
Nervous-
Respitory
Digestive
Circulatory
Immune
Excretory
Endocrine
Reproductive
What is the order of levels of organization.
Cells
Tissues
Organ
Organ system
Organism
What are the skeletal system functions
Site for muscle attachment for movement
Support for tissue
Stores minerals such as calcium
Protects organs
Blood cell production
How many bone are in an adult human
206
Over how many bones are in hands and feet
100
A babys bone has how many bones at birth
About 300
Interactions
Tendons attach muscles and bones for movement.
Red blood cells, platelets and some white blood cells are made in bone marrow and moved by the circulatory system
Muscular system
Made up of __________ and ____________.
Muscles, tendons
Muscle facts
1.muscles help your __________ and __________ move.
2. There are over________ muscles in the human body.
3. The largest muscle is your ________ ________
4. The strongest muscle is your ______________
- Organs, bones
2.650
3.gluteus maximus - Masseter (jaw)
What are the 3 different types of muscles
Smooth muscle, skeletal muscle, cardiac muscle
What are smooth muscles
Layers of smooth muscle all over your body
Used for breathing and sneezing
What are skeletal muscles hint voluntary
Muscle that moves bones
Voluntary
Provides strength
What are cardiac muscles
For the heart
Automatic
Used to pump blood
What are nerves
Nerves are in your skin eyes ears tongue and nose
Nerves carry messages to and from parts of your body
Spinal cord the 3 primary roles hint coor
Motor
- Sends motor commands from the brain to the body
- Sends sensory information from the body to the brain
- Coordinate reflexes