Biology 2 Flashcards
(27 cards)
What are the four functions of the skeleton?
Support, movement, protection, making blood cells
Joint
Where two bones meet
Ligament
Tissue that connects bone to bone
Why are bones covered by cartilage?
To stop them rubbing together
What is the function of synovial fluid
To reduce friction when bones move within a joint
How many bones are in a human’s body?
206
Muscle
Tissue that contracts and relaxes
What is the function of the muscles?
Movement
Name the three main types of muscle
Smooth, cardiac, skeletal
Where is smooth muscle found in the body?
Walls of hollow organs
Where is cardiac muscle found in the body?
Heart
Where is skeletal muscle found in the body?
Covers the skeleton
Tendon
Tissue that connects muscle to bone
Antagonistic muscles
Muscle pairs that work in opposite actions
Name an example of antagonistic muscle pairs
Biceps and triceps
Which muscle type is under conscious control?
Skeletal muscle
When the forearm moves up, which muscle contracts?
Bicep
When the forearm moves down, which muscle relaxes?
Bicep
What line is drawn through the data on a graph?
The line of best fit
What are the structures within an organism?
Cell, Tissue, Organ, System, Organism
Organ
A group of tissues which combine to perform the same function
What are the 4 main types of tissue in the heart?
Cardiac muscle tissue, nervous tissue, connective tissue, epithelial tissue
What organ does the rib cage protect?
Heart
What organ does the skull protect?
Brain
