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WorksheetsHuman Body Systems
Total questions: 40
Worksheet time: 20mins
Which statement describes the organization of living organisms?
All organisms are composed of many cells, which are the basic units of structure but
do not perform life functions.
All organisms are composed of one or more cells, which are the basic units of structure
and perform essential life functions.
All organisms are composed of many cells that have basic units with unique structures
and functions.
All organisms are composed of one or more cells with the same shape and purpose
but are not the basic units of structure.
A group of two or more tissues working together to perform a specific function is called______.
an organ
a cell
an organ system
an organism
The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called __________.
healing
homeostasis
digestion
respiration
Human organ systems work together in many ways. Which statement accurately explains the relationship between two body systems?
The excretory system regulates the temperature of the integumentary system.
The skeletal system delivers nutrients absorbed by the endocrine system.
The digestive system delivers oxygen absorbed by the respiratory system.
The nervous system regulates the movement of the muscular system.
Which of the following organs aid in protection against pathogens, excretes waste products, and body temperature regulation?
Skin
Femur
Bicep
Stomach
Which makes up the integumentary system?
A network of nerves
White blood cells and antibodies
The brain and spinal cord
The skin, hair and nails
Inside cells, special molecules carry messages from the membrane to the nucleus. Which body system uses a similar process?
Endocrine
Lymphatic
Excretory
Integumentary
How does the skin help the body maintain homeostasis?
The skin transports oxygen.
The skin digests viruses.
The skin sends messages to the brain.
The skin stabilizes temperature.
What is the largest organ of the human body
Brain
Heart
Skin
Lungs
Which best explains why muscle is considered a tissue?
It is connected to bones.
It can move voluntarily or involuntarily.
It interacts with several organ systems.
It is a group of cells working together.
Which type of muscle makes up the heart?
cardiac
skeletal
smooth
all of these
Which type of muscle is found in internal organs (like your stomach)?
smooth
striated
skeletal
voluntary
A specific disease affects the muscular system. Which of the following would be a likely symptom of this disease?
inability to digest protein
poor vision
difficulty walking
loss of short-term memory
The muscular system provides ______ for the body.
energy
oxygen
structure
movement
Mrs. Cook has to write a paper on the formation of red blood cells. In addition to the circulatory system, what other body system should she research to find information about the formation of red blood cells?
skeletal system
immune system
endocrine system
reproductive system
The strong connective tissue that attaches muscle to bone is called a _________.
tendon
ligament
joint
cartilage
Which of the following is a function of the skeletal system?
protects vital organs
regulates our body temperature
excretes wastes
All of these
______________________ is the part of the bone where blood cells are made.
marrow
cartilage
veins
muscle
The major organ of the nervous system encased in the skull
Brain
Neuron
Axon
Liver
When a person’s arm touches something hot, the muscles in the arm react to pull the arm away. Which body system alerts the muscles to react?
Nervous
Digestive
Circulatory
Respiratory
What is the primary function of white blood cells in humans?
Fight infection
Carry oxygen
Grow tissue
Remove waste
Which system protects the body by responding to the presence of a virus?
Skeletal
Immune
Respiratory
Excretory
Two examples of pathogens are
Poor diet and no exercise
Smoking and heredity
Clotting and heart problems
Viruses and bacteria
The main functions of our blood are__________.
transmit and carry messages to our muscles
to contract and relax
to carry oxygen and transport nutrients to our cells
to remove bacteria and viruses
Why does the blood returning to the heart appear to be a darker red color (or blue)?
It is oxygen-rich.
It is oxygen-poor.
It is protein-rich.
It is carrying amino acids.
The exchange between alveoli and capillaries allows
damaged red blood cells to be destroyed.
oxygen to enter the blood.
lymph to be collected.
carbon dioxide to enter the blood.
What is one way the respiratory system and the circulatory system work together in the human body?
The circulatory system takes in nutrients, while the respiratory system delivers oxygen.
The circulatory system takes in water, and the respiratory system takes in carbon
dioxide.
The respiratory system takes in nutrients, while the circulatory system delivers carbon
dioxide to the cells of the body.
The respiratory system takes in oxygen, and the circulatory system delivers the oxygen
to the cells of the body.
Which two systems work together to make sure that oxygen reaches the bloodstream and carbon dioxide is removed?
digestive and circulatory
respiratory and nervous
muscular and skeletal
circulatory and respiratory.
Which body system is directly threatened when bacteria infect the bronchial tubes and lungs?
Muscular
Nervous
Respiratory
Excretory
How do the digestive system and the circulatory system work together in the human body?
The digestive system sends electrical messages, while the circulatory system responds to
the messages.
The digestive system provides structure for the body, while the circulatory system directs the
movement.
The digestive system removes liquid toxins from the body, while the circulatory system
removes solid waste.
The digestive system extracts nutrients from food, while the circulatory system transports
those nutrients.
Which is NOT a function of the digestive system?
Absorb water from food
Absorb nutrients from food
Filter waste from the blood
Break down food
Which of the following body parts is NOT involved in chemical digestion?
stomach
liver
pancreas
esophagus
What is excretion?
removing waste from the body
breathing
digesting food
adding nutrients
Which of the following does food NOT pass through?
esophagus
liver
small intestine
mouth
Which function summarizes the excretory (or Urinary) system?
It removes waste.
It collects oxygen.
it attacks diseases.
It delivers nutrients.
Can you live without your kidneys?
No, toxins and waste products must be removed from the bloodstream on a daily
basis.
No, there would be no oxygen/carbon-dioxide exchange.
Yes, red blood cells would still be able to circulate through the bloodstream.
Yes, the pancreas would enlarge to take over the job of the kidneys.
Food is digested to the molecular level, absorbed, and then carried to the cells. The dissolved waste molecules produced by the cells are removed primarily from the blood by the _____________.
kidneys
large intestine
lungs
skin
Which of the blood vessels are responsible for the exchange of blood and toxins within the kidneys?
Capillaries
Veins
Arteries
Aorta
Glands are small organs located throughout your body that secrete (that means release) substances called:
Plasma
Hormones
Enzymes
Bile
Hormones help your body by:
Telling your cells what to do
Helping you breathe
Sending nerve messages
Oxidizing your blood
