WorksheetsHuman Body Systems
Total questions: 24
Worksheet time: 17mins
What is the name of the red portion of the brain?
Frontal Lobe
Occipital Lobe
Temporal Lobe
Parietal Lobe
What do all four lobes make up?
Brain Stem
Cerebellum
Cerebrum
Pons
What part of the brain is label A?
Brain Stem
Cerebellum
Cerebrum
Pons
What part of the brain is labeled B?
Brain Stem
Cerebellum
Cerebrum
Pons
How does exercise affect heart rate?
Increases heart rate
Decreases heart rate
Causes heart rate to slow down
Causes heart rate to fluctuate
Atherosclerosis causes a build up of fat in the arteries. How is blood flow affected by this?
Blood flow is increased due to widening of vessels
Blood flow is decreased due to arteries being more open
Blood flow is increased due to arteries becoming narrower
Blood flow is decreased because the arteries are narrower
Dehydration causes water to leave the blood plasma. What affect would dehydration have on blood pressure?
Increase because the percent of salt decreases
Increase because resistance of blood vessels decreases as they relax
Decrease because concentration of oxygen goes down
Decrease because blood volume would be decreased
Smoking tobacco is harmful to the body in many ways, including damaging the blood vessels lining and increasing blood viscosity. This results in increased risk of deadly blood clots and heart attacks. Why does smoking increase these risks?
Causes increased resistance against blood flow. Increased resistance decreases flood flow.
Blood clots reduce blood pressure and thus makes the heart work harder
Damage to the lining causes salt to leak through which increases the salinity. This reduces blood viscosity.
Damaged blood vessels do not allow cholesterol to heal blood clots.
High blood sugar is a result of insulin being released into the body. How would high blood sugar become an issue?
High blood sugar decreases blood viscosity, decreasing blood flow.
High blood sugar decreases blood volume, increasing blood flow.
High blood sugar increases blood viscosity, decreasing blood flow.
High blood sugar increases blood volume, increasing blood flow.
A student's resting heart rate is 70 bpm. After running up and down the stairs, their heart rate is 155. Which statement best describes how this change affects the student's cardiovascular system?
Thickness of the blood increases
Blood flow through the body increases
Blood pressure decresases
Diameter of the blood vessels decreases
Which describes the specific immune response in which a protein is attached to the pathogen to tag it for destruction?
antibody
histamine
interferon
macrophage
Josie was sick with a fever caused by the common influenza virus. At the doctor, she asked for antibiotics. The doctor said it would not work on the sickness. Why would antibiotics be ineffective?
Antibiotics interfere with the immune systems specific response
Antibiotics eliminate the immune systems nonspecific response
Antibiotics are only affective on bacteria, not viruses
Antibiotics only prevent viral infections, not cure them
Which best describes a nonspecific immune system response to a viral infection?
T cells are produced to search out and destroy the viruses
Memory B cells rapidly respond to an infection
Plasma cells replicate & release antibodies
Inflammation occurs in response to histamines being released.
How do vaccines provide immunity?
Cause the body to create a fever to kill pathogens
Causes the body to go through a specific immune response which creates memory B cells to use in the future.
It is a drug that kills bacteria and stops them from replicating
It is a dose of histamine that triggers the inflammatory response
Tiffany runs a lab test on a blood sample and finds that the patient has memory B cells against Salmonella. What can be confirmed from this?
They are probably sick with salmonella
They are able to spread Salmonella through physical contact
They are likely going to develop Salmonella disease
They are less likely to develop Salmonella a second time
During the winter, a student becomes sick with the flu. Shortly after, the same student becomes sick with strep. Will the same type of B cells that fought the flu be able to fight strep?
No. B cells fight viruses while T cells fight bacteria
No. Each B cell is capable of recognizing one specific pathogen.
Yes. B cells are nonspecific and can fight any pathogen they encounter.
Yes. B cells recognize similar antigens such as bacterial and viral pathogens.
Each year the CDC conducts research to see how effective the flu shot is against influenza. The CDC includes data from people who both received the vaccine and those who did not. Why would the include data from people who did not receive the vaccine?
They make up the qualitative group while the vaccine data is the quantitative group.
They could still get the vaccine if the CDC researchers need more data
They represent the control group, showing what is normal without the vaccine to allow for comparison
They are the independent variable because they did not receive the vaccine, while the people who did are the dependent variable.
How does the placenta support the development of the growing fetus?
Provides nutrients, such as food and oxygen, to the fetus
Cushions and protects the delicate tissues of the fetuc
Mixes the flood from the mother and the fetus
Filters harmful substances out of the mothers blood before the blood passes to the fetus
Egg cells are produced in what structure of the female?
Cervix
Ovary
Uterus
Vagina
Which of the following is correctly matched with name and function?
C- the testis function as the site where sperm are formed
A- the testis function as the site where sperm are formed
C - the epididymis functions as the site where sperm mature and are stored
A - the urethra functions as the site where sperm are released
A fertilized egg undergoes several stages before it is successfully implanted. The diagram shows these stages as the fertilized egg moves through the female system. In which structure of the female does the blastocyst get implanted?
amniotic sac
ovary
uterus
vagina
In which structure of the female system is the egg fertilized?
fallopian tube
placenta
uterus
vagina
Before a fertilized egg becomes an embryo, it goes through several development stages. These are shown alphabetically below. What is the correct sequence of stages after fertilization?
morula, blastocyst, gastrulation, neurulation, embryo
blastocyst, gastrulation, morula, neurulation, embryo
neurulation, gastrulation, blastocyst, morula, embryo
gastrulation, morula, neurulation, blastocyst, embryo
A couple is expecting a child and goes for their first ultrasound at the end of the first trimester of pregnancy. Will the fetal heart be beating?
Yes, the fetal heart develops in the first trimester
No, the fetal heart develops in the second trimester.
No, the fetal heart develops in the third trimester
Yes, the fetal heart develops in the egg cell before fertilization
