Skeleton/Bones
What are freely movemable joints? Give an example.
Joints that allow our bones to move a lot. Ex. knees, elbows, and shoulders.
Name two types of joints and where you might find them.
hinge and pivot joint in elbow for flex/extend/rotate
What are the four types of bones? Give an example of each.
Some are long (tibia), some are short (carpals), some are irregular (vertebrae), and some are flat (skull)
What are the two types of muscles in our bodies? Give an example of each.
Voluntary (arm/leg movement) and involuntary (heart).
Name the muscle for the shin and calf and what bone they surround.
anterior tibialis (shin) and gastrocnemius (calf) surround the Tibia (and fibula)
Name three muscles are in our arms?
biceps and triceps brachii, and extensor carpi group
What are fixed joints? Give an example
Some bones are connected at joints that can't move. (skull sutures)
Describe the two main structure of the muscle filament model and how they work?
myosin filaments (thick filaments) use ATP to pull on the actin filaments (thin filaments) causing the muscle to contract
What are two functions of the skeleton?
It supports our body (vertebrae) and it protects the organs inside our body. The brain. Our heart and lungs. Blood cell formation and nutrients.
What does our trapezius muscle help us do and where is it?
It helps us move our arms, rotate neck. (connects neck to upper back and extends towards shoulder)
What is muscle fatigue?
decrease in ability to contract muscles due to lactic acid build up
What are four characteristics of bones? (structure)
epiphysis, fossa, facets, foremen, medullary cavity, diaphysis, condyle cartilage, etc.
What does the rectus abdominus help us do and where is it?
They help us bend down and maintain stable core.
Show an example where you would use the semi-flexible joints.
Backbend, any twisting of spine