raspatory
chemical released after exhale
what is CO2
Liquid that heart pumps
what is blood
the skelatal system's purpose is ___
what is structure
the purpose of the muscular system is __
what is to protect the bones and and heat
connected to all of the nerves
What is the brain
what is the name of the tiny hair like structures that line the airways and sweep away mucus and dirt
what is Cilia
four main components that make human blood
plasma red and white blood cells, and platelets
name of the process where cartiliage is gradually replased by bone
ossification
muscles always work in pairs to move bones, one muscle contracts the other ___
relaxes
part of the brain responsible for balance, posture, and motor skills
cerebellum
these tiny, grape-like air sacs are where the exchange of oxygen and carbon dioxide takes place.
what is Alveoli
thick walled vessels carry oxygen rich blood
what are arteries
the flexible rubbery tissue that cushions the ends of bones at the joints
what is cartilage
this type of muscle, only found in the heart
what is Cardiac muscle
these specialized cells act as the messengers of the nervous system
What are neurons
the large muscle under the lungs that contracts.
What is Diaphragm
the four distinct rooms in the human heart
what are chambers
the substance found inside the center of bones
what is bone marrow
muscles you cannot consciously control
what is involentary muscles
this part of the brain is the largest and responsible for thinking
what is cerebrum
the formal name for windpipe
what is Trachea
the smallest type of blood vessel where nutrients and gases are exchanged
what are Capillaries
the strong bands of connective tissue that attach one bone to another
what are ligaments
tough tissues that attach muscles to bones
what are tendons
an automatic lightning-fast response to a stimulus
(like pulling your hand away from fire)
what is a reflex