Resp 1
What is the main function of the respiratory system?
A. Pump blood
B. Break down food
C. Exchange gases
C. Exchange gases
Which structure carries air from the nose to the lungs?
A. Esophagus
B. Trachea
C. Artery
B. Trachea
What is the main function of the nervous system?
A. Break down food
B. Control and coordinate body activities
C. Pump blood
B. Control and coordinate body activities
Which part of the brain controls balance and coordination?
A. Cerebrum
B. Cerebellum
C. Brainstem
B. Cerebellum
Which gas do humans breathe in?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
B. Oxygen
What is the function of the nose in breathing?
A. Pumps blood
B. Filters and warms air
C. Digests food
B. Filters and warms air
Which organ is the control center of the body?
A. Heart
B. Brain
C. Lungs
B. Brain
Which part of the brain controls thinking and memory?
A. Cerebrum
B. Cerebellum
C. Spinal cord
A. Cerebrum
Which gas do humans breathe out?
A. Oxygen
B. Carbon dioxide
C. Hydrogen
B. Carbon dioxide
Which part connects the trachea to the lungs?
A. Bronchi
B. Alveoli
C. Diaphragm
A. Bronchi
What is the spinal cord’s main function?
A. Pump oxygen
B. Send messages between brain and body
C. Digest food
B. Send messages between brain and body
Which part of the brain controls breathing and heart rate?
A. Cerebrum
B. Brainstem
C. Cerebellum
B. Brainstem
Which organ is the main part of the respiratory system?
A. Heart
B. Lungs
C. Brain
B. Lungs
Why are alveoli important?
A. They move blood
B. They store food
C. They allow gas exchange
C. They allow gas exchange
Which cells carry messages in the nervous system?
A. Neurons
B. Red blood cells
C. Muscle cells
A. Neurons
What is a reflex?
A. A slow response
B. A voluntary action
C. A quick automatic response
C. A quick automatic response
What is the trachea commonly called?
A. Food pipe
B. Windpipe
C. Air sac
B. Windpipe
Which system works closely with the respiratory system?
A. Digestive system
B. Circulatory system
C. Skeletal system
B. Circulatory system
What is a neuron?
A. A bone cell
B. A nerve cell
C. A blood cell
B. A nerve cell
Which part of the body is mainly responsible for reflex actions?
A. Brain
B. Spinal cord
C. Heart
B. Spinal cord
Where does gas exchange happen in the lungs?
A. Bronchi
B. Alveoli
C. Trachea
B. Alveoli
What do red blood cells carry from the lungs?
A. Carbon dioxide
B. Oxygen
C. Water
B. Oxygen
What part of the neuron receives signals?
A. Axon
B. Dendrites
C. Nucleus
B. Dendrites
What protects the brain?
A. Muscles
B. Skull
C. Skin
B. Skull
What are alveoli?
A. Muscles
B. Blood vessels
C. Tiny air sacs
C. Tiny air sacs
What happens to oxygen after it enters the blood?
A. It leaves the body
B. It is carried to cells
C. It turns into food
B. It is carried to cells
What part of the neuron sends signals away from the cell body?
A. Dendrites
B. Axon
C. Membrane
B. Axon
What protects the spinal cord?
A. Ribs
B. Skull
C. Vertebrae
C. Vertebrae
What is the diaphragm?
A. A bone
B. A muscle that helps breathing
C. A lung
B. A muscle that helps breathing
What can damage the respiratory system?
A. Clean air
B. Exercise
C. Smoking
C. Smoking
What system works closely with the nervous system to respond to stimuli?
A. Skeletal system
B. Muscular system
C. Digestive system
B. Muscular system
Which of these is part of the central nervous system?
A. Nerves
B. Brain
C. Muscles
B. Brain
What happens when you inhale?
A. Lungs shrink
B. Diaphragm moves up
C. Lungs fill with air
C. Lungs fill with air
Which organ protects the entrance to the trachea when swallowing?
A. Epiglottis
B. Alveoli
C. Bronchi
A. Epiglottis
What is a stimulus?
A. A response
B. A change in the environment
C. A type of cell
B. A change in the environment
Which of these is part of the peripheral nervous system?
A. Brain
B. Spinal cord
C. Nerves
C. Nerves
What happens when you exhale?
A. Lungs fill with air
B. Air leaves the lungs
C. Oxygen enters blood
B. Air leaves the lungs
Why do humans need oxygen?
A. To digest food
B. To make energy in cells
C. To pump blood
B. To make energy in cells
What is a response?
A. The reaction to a stimulus
B. A type of neuron
C. A body organ
A. The reaction to a stimulus
How do neurons communicate?
A. Through bones
B. Through electrical and chemical signals
C. Through blood
B. Through electrical and chemical signals