Activate 1 - Chapter B2 - Body Systems Flashcards
Trachea
The trachea has rings of cartilage to keep it open.
Ribcage
Ribcages are bones that protects the lungs.
Diaphragm
It is a sheet of muscle that is used in breathing.
Alveolus
It is a structure inside the lungs. (Air Sac)
Rib
Ribs are bones that protects the lungs
Lung
Lungs is where gas exchange happens.
Gas Exchange
The transfer of gases between an organism and its environment.
Respiratory System
The organs involved in gas exchange.
Cell
The smallest function unit in an organism - the building block of life
Tendon
Joins a muscle to a bone
Tissue
A group of similar cells working together to perform a function
Organ
A group of tissues working together to perform a function.
Organ System
A group of organs working together to perform a function.
Cartilage
The strong, smooth tissue that covers the end of bones to prevent them rubbing together.
Ligament
Joins two bones together
Bone
A tissue that forms a hard structure, used to protect organs and for a movement.
Joint
A part of the skeleton where two bones join together.
Antagonistic Pairs
A pair of muscles that work together to control movement at a joint - as one muscle contracts, the other relaxes.
Respiration
A chemical reaction where food and oxygen are converted into energy, water, and carbon dioxide.
Inhale
Breathing in, to take oxygen.
Exhale
Breathing out, to remove carbon dioxide.
Synovial Fluid
Synovial fluid is a fluid that lubricates the joint.
Multicellular Organism
An organism made up of many cells
Skeleton
All the bones in an organism
Newton
The unit of force (symbol N)
