Muscular skeletal 1
Bones are mostly made of this material
collagen
main purpose of a tendon
attach muscle to bones
main purpose of platelets
clot when a person is cut
Tiny sacs at the end of the bronchioles filled with air
alveoli
human brain is made up of 86 million of these cells
neurons
these bones protect soft organs like heart and lungs
ribs
what do cardiac muscles do?
spread blood throughout human body
best describes the aorta (size)
largest artery in body
Hairs in the nose that clean the air coming in
cilia
this is the largest part of the brain
cerebrum
stretchy bands that hold bones together
ligaments
muscles that do not require a person to think
involuntary
vessles that carry blood away from heart
arteries
What is the main purpose of the larynx?
help people be heard with their voice
Nerves that are actively controlled by humans. (voluntary)
somatic
makes up the center of a bone
marrow
muscles that do require a person to think
voluntary
muscle that runs down the center of heart
septum
What relationship does the circulatory system have with the respiratory system?
spread oxygen throughout the body
A thick bundle of nerves that connects the brain to the nerves of the body
spinal cord
brain sends messages to muscles through these
nerves
muscles located in hollow organs like stomach
smooth
smallest blood cells
capillaries
The body's cells need this gas to work
oxygen
Which action is controlled by the somatic nervous system?
catching a ball