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WorksheetsHuman Body Review
Total questions: 32
Worksheet time: 16mins
L'teesha's grandmother has atherosclerosis, a circulatory disease that occurs when plaque builds up on the walls of arteries. How would this disease affect the blood flow?
There will be reduced blood flow requiring the heart to work harder to move blood through the body.
There will be increased blood flow allowing the heart to pump less frequently and with less pressure.
Plaques are harmless, and they will have no effect on the blood flow.
There will be an increased exchange of gasses, nutrients, and wastes.
The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow?
A high viscosity of blood causes an increased resistance in the blood vessels and leads to decreased blood flow
The changing of the shape of red blood cells to a crescent shape decreases resistance and lead to increased blood flow.
The narrowing of blood vessels increases pressure and leads to increased blood flow.
A low blood pH decreases the rate of diffusion through the blood vessels and leads to decreased blood flow.
Which of the following statements explains a way in which lifestyle choices may affect blood flow?
Smoking can constrict blood vessels, reducing circulating to the hand and feet.
Eating foods high in cholesterol may lead to a build-up of plaque in the blood vessels, causing a thinner passage for blood, causing less blood flow to the heart.
Exercising forces the heart to work harder to circulate blood. After many years of exercise the heart may become more efficient and have a larger stroke volume, increasing the blood flow to the muscles.
All of these are examples of lifestyle choices.
What is immunity?
The body's ability to produce cells that inactivate foreign cells or substances.
The body's ability to regulate homeostasis through feedback loops.
The body's ability to produce the "fight or flight" response.
The body's ability to use the endocrine system to fight disease.
After an initial infection, B-cells recognize the measles virus. how is this helpful in human immune response?
The B-cells use this recognition to defend the body against other pathogens, such as bacteria.
The B-cells more quickly recognize and respond to any other virus that invades the body.
The B-cells produce antibodies more quickly if the measles virus is encountered again.
The B-cells transfer this recognition to T-cells, which will then devour the viruses.
A patient presents with sickle cell anemia which causes blood cells to become crescent moon shaped and easily clump together and form clots. How would sickle cell anemia affect blood flow?
Decrease blood flow
Increase blood flow
It really has no effect
Sometimes it increases flow and sometimes decreases flow
Which of the following factors would most directly affect blood flow through the circulatory system?
blood sugar
blood pressure
respiratory rate
outside temperature
Which letter is pointing to the parietal lobe of the cerebrum?
A
B
C
D
E
Which letter is pointing to the cerebellum?
B
C
D
E
F
Which letter is pointing to the part of brain that is responsible for breathing, swallowing, body temperature, etc?
B
C
D
E
F
Although vaccines cannot be used to treat a person who is sick, they can help to prevent infections. Vaccinations tell the body to create "memory cells", which will function later to create antibodies against certain pathogens. When a person is vaccinated, what are they injected with?
weakened viruses or antigens from the virus
live, inactive viruses
antibodies to a disease bacterium
blood from a person who has had the disease
Many species of bacteria have become resistant to antibiotics because antibiotics have been so widely used. Now, bacteria that at one time were killed by antibiotics are more difficult to treat. What is the best way to proceed in dealing with this public health problem?
Anti-viral medications should now be used instead of antibiotics.
Antibiotics should only be prescribed to people with bacterial infections.
Antibiotics should be made available to anyone without a prescription.
Antibiotics should no longer be used.
During infection, these antibody-producing cells become activated in the lymph nodes to neutralize blood-borne pathogens
Macrophage
Neutrophils
B Cells
Killer T Cells
Which of the following sequences correctly describes prenatal development?
blastocyst implants in uterus, zygote forms, heart begins beating, lungs can breathe air, sex organs become visible
zygote forms, blastocyst implants in the uterus, sex organs become visible, heart begins beating, lungs can breathe air
blastocyst implants in the uterus, zygote forms, heart begins beating, sex organs become visible, lungs can breathe air
zygote forms, blastocyst implants in the uterus, heart begins beating, sex organs become visible, lungs can breathe air
What is letter E pointing to?
testes
scrotum
vas deferens
epididymis
What is the function of letter B?
Where the sperm grow up & produce tails
Where meiosis occurs
To produce part of the fluid needed for semen
Serve as a vessel for sperm to pass through
Which of the following is NOT true?
Semen is a fluid that contains sperm cells.
Semen is a combination of fluids from the prostate gland, seminal vesicle and Cowper's gland.
Semen contains nutrients that "feed" the sperm on their journey to the egg.
The only vessel that contains semen is the vas deferens.
How is the skin the body’s first line of defense?
It secretes sweat, which raises the pH of the skin and kills pathogens.
It forms a physical barrier to keep pathogens out.
It traps pathogens in the many flagella that line mucous membranes.
It secretes oil, which washes away pathogens.
Which of the following statements about reproductive hormones is TRUE?
Men and women produce both estrogen and testosterone.
Only women produce progesterone.
Reproductive hormones affect only the reproductive system.
Estrogen levels are highest during early pregnancy
The diagram shows human female reproductive structures. Which structure is correctly paired with its function?
A - releases estrogen and progesterone
B - produces and releases the egg
C - provides the usual site for fertilization
D - nourishes a developing embryo
The drinking of alcoholic beverages by a pregnant woman is harmful to the development of her fetus. This is most damaging early in a pregnancy because during this time
the lungs of the fetus become functional.
alcohol can easily enter the mouth of the fetus.
many of the essential organs of the fetus are forming.
the fetus cannot excrete wastes.
Which of the following describes fertilization?
cell differentiation to form a blastula
formation of germ layers in a deuterostome
a sperm joining an egg to form a zygote
sperm and egg production
Antibodies help to fight infection by
binding to antigens and marking pathogens for destruction by macrophage
increasing activity of killer T cells
actively perforating pathogens through the action of Perforin protein
causing a systemic fever to slow the growth of pathogens
causing apoptosis of infected cells
Which of these is the oviducts (aka Fallopian Tubes)?
1
2
3
4
5
If this part of the reproductive system is removed, estrogen & progesterone will not be produced.
A
B
C
D
A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. What medical condition connected to blood flow is most likely to affect this patient in the future?
The patient may develop headaches and confusion due to cancer in the brain caused by years of low levels of oxygen supplied to the brain.
The patient may develop stiff joints and chest pains from the high blood pressure applied to the muscle and joint tissues of the body.
The patient may show signs of confusion, weakness, and partial paralysis due to high blood pressure when the plaque dislodges and blocks blood flow to the brain.
The patient may suffer a heart attack because of the reduction in blood flow to the heart muscles due to severe plaque build-up in the coronary artery.
Which of the following correctly compares the functions of the vas deferens and the fallopian tubes?
Sperm leaves the body through the vas deferens, and eggs leave the body through the fallopian tubes
Sperm travels through the vas deferens, and eggs travel through the fallopian tubes.
The vas deferens produces sperm, and the fallopian tubes produce eggs.
The vas deferens stores sperm, and the fallopian tubes store eggs.
Normally, the temperature inside the scrotum is slightly lower than normal body temperature. What do you predict would happen if the temperature inside the scrotum were a few degrees higher than normal body temperature instead?
Sperm would not be able to travel through the vas deferens.
Sperm would be stored in the epididymis rather than in the testes.
Sperm would not be able to develop properly.
The rate of sperm production would increase.
Many times people visit the doctor requesting antibiotics to treat colds and viral infections. How is the doctor justified in offering the patient treatment options that do not include antibiotics for these cases?
Antibiotics can weaken the immune system when used for colds and viruses, whereas other medications are not so hard on the immune system during these types of illnesses
Colds and viruses should be first treated with viral therapies and then when the body begins to recover, antibiotics can be used. Otherwise, the use of antibiotics is not effective at all.
Side effects from antibiotics are severe when used for colds and viruses. Any use of antibiotics for colds and viruses will only make the patient more ill and ultimately make the patient's recovery time longer
If a doctor provides an antibiotic to treat colds and viruses, any bacteria in the patient's body will be killed, but a few will survive. Those few survivors may become resistant to antibiotics needed for real bacterial illnesses.
Sometimes during a woman's life, she may decide that she no longer wants to have children. Doctors may then perform a tubal ligation. On which structure of the diagram would the doctor perform this procedure?
A
B
C
D
Which of the following is in the correct order from first to last?
zygote->fetus-> embryo
embryo->zygote-fetus
fetus->embryo->zygote
zygote->embryo->fetus
During fertilization, a sperm enters an egg, and the two join to form a zygote. Which statement is true regarding the combination of alleles in the zygote?
All of the alleles come from the mother's egg.
All of the alleles come from the father's sperm.
New alleles are formed as the sperm & egg unite.
Half of the alleles come from the sperm and half of the alleles come from the egg.
