WorksheetsLife Science Chapter 15 Test Answer Key
Total questions: 22
Worksheet time: 11mins
The vocal cords are located inside the ________.
esophagus
larynx
pharynx
trachea
The microscopic structures in the lungs where gases are exchanged with blood vessels are called_______
alveoli
bronchi
tracheae
windpipes
The blood vessels that return blood to the heart are called_______
arteries
aortas
capillaries
veins
Which of the following have valves?
arteries
capillaries
veins
none of the above
What is the job of platelets?
to defend against bacteria and viruses
to form blood clots
to carry blood cells as the blood flows through the blood vessels
to carry oxygen
Which chamber of the heart first receives blood returning from the body?
right atrium
left atrium
right ventricle
left ventricle
The main artery that carries blood from the heart to the body is the ________.
atrium
aorta
pulmonary artery
pulmonary vein
Lymph nodes are structures
that connect the lymph vessels to each other.
that filter dead cells and foreign substances out of your lymph.
that produce new blood cells for the circulatory system.
that rejoin lymph vessels with the blood stream.
Which organ pumps lymph through the lymph vessels?
heart
spleen
thymus
none of the above
Which structure prevents food from entering your lungs when you swallow?
larynx
nasal cavity
pharynx
trachea
Which structure, also known as the windpipe, is the main passageway to your lungs?
esophagus
larynx
pharynx
trachea
When your diaphragm contracts,
you inhale
you exhale
your chest cavity enlarges.
you inhale and your chest cavity enlarges
Most blood cells are formed in the ________.
bone marrow
heart
pancreas
plasma
Which blood component provides defense against foreign substances?
hemoglobin
red blood cells
white blood cells
platelets
Carbon dioxide and oxygen pass between the alveoli and capillaries by diffusion.
True
False
You exhale when your diaphragm and rib muscles contract to force the air out.
True
False
Arteries branch into small vessels called veins
True
False
More than half of your blood is made up of plasma.
True
False
Your pulse measures how quickly your heart is beating.
True
False
Blood vessels that carry blood away from the heart are called _______.
arteries
veins
capillaries
venules
The pressure of circulating blood against the walls of the arteries is called _______.
blood pressure
pulse rate
cardiac output
respiratory rate
What structure warms and moistens air as it enters the respiratory system?
The nasal cavity
The trachea
The alveoli
The bronchi
