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 increases blood viscosity, decreasing blood flow.

High blood sugar decreases blood viscosity, decreasing blood flow.

High blood sugar decreases blood volume, increasing 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?

Blood flow through the body increases

Thickness of the blood increases

Diameter of the blood vessels decreases

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 are only affective on bacteria, not viruses

Antibiotics interfere with the immune systems specific response

Antibiotics eliminate the immune systems nonspecific response

Antibiotics only prevent viral infections, not cure them

Which best describes a nonspecific immune system response to a viral infection?

Inflammation occurs in response to histamines being released.

T cells are produced to search out and destroy the viruses

Memory B cells rapidly respond to an infection

Plasma cells replicate & release antibodies

How do vaccines provide immunity?

Causes the body to go through a specific immune response which creates memory B cells to use in the future.

Cause the body to create a fever to kill pathogens

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 less likely to develop Salmonella a second time

They are probably sick with salmonella

They are able to spread Salmonella through physical contact

They are likely going to develop Salmonella disease

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. Each B cell is capable of recognizing one specific pathogen.

No. B cells fight viruses while T cells fight bacteria

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 represent the control group, showing what is normal without the vaccine to allow for comparison

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 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

Which of the following is correctly matched with name and function?

A- the testis function as the site where sperm are formed

C- 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

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

Human Body Systems

Authored by Cassandra Eiden

Biology

9th - 12th Grade

NGSS covered

Used 224+ times

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24 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the red portion of the brain?

Frontal Lobe

Occipital Lobe

Temporal Lobe

Parietal Lobe

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do all four lobes make up?

Brain Stem

Cerebellum

Cerebrum

Pons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the brain is label A?

Brain Stem

Cerebellum

Cerebrum

Pons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the brain is labeled B?

Brain Stem

Cerebellum

Cerebrum

Pons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

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

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