WorksheetsHuman Body
Total questions: 14
Worksheet time: 7mins
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?
The narrowing of blood vessels increases pressure and leads to faster blood flow.
High blood viscosity increases the resistance in the blood vessels and leads to slower
blood flow.
Low blood pH decreases the rate of diffusion through the blood vessels and leads to
slower blood flow.
The changing of the shape of red blood cells to a crescent shape decreases resistance
and leads to faster blood flow.
Illnesses can often lead to fever and dehydration. How might these symptoms affect a person’s cardiovascular system?
Fever and dehydration increase body temperature and fluids, which decrease a person’s heart rate and respiration.
Fever and dehydration increases body temperature and decreases the amount of fluids, which increase a person’s heart rate and respiration.
Fever and dehydration increase body temperature and decrease in the amount of fluids, which decrease the viscosity of the blood.
Fever and dehydration increases body temperature and fluids, which increase the viscosity of the blood.
The viscosity of blood is one of the main factors that affect the blood flow in the cardiovascular system. Define the viscosity of blood.
How slow/fast the blood flows
How hard the heart pumps
The thickness of blood
The hardening of arteries
Which of the following explains why people need to get a flu shot each year?
Antibodies for the flu virus only last for one year.
The flu virus eventually breaks down the vaccine.
The flu virus is constantly mutating and changing.
There are not enough antibodies in the vaccine to kill the entire virus.
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.
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.
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.
The immune system has both specific and nonspecific defenses against viral infections. Which statement describes a nonspecific response of the immune system in fighting viral infections?
T cells are produced to search out and destroy the viruses.
Memory B cells are activated to rapidly respond to the viral infection.
Plasma cells quickly replicate and release antibodies that bind to the viruses.
Virus-infected cells produce interferons that lead to the inhibition of viral replication.
What is a difference between the nonspecific and specific immune responses?
Nonspecific responses provide a lasting immunity from previously encountered pathogens, while specific responses do not.
Nonspecific responses rely on the recognition of pathogens to combat infections, while specific responses rely on inflammation.
Nonspecific responses are based only on physical barriers, while specific responses include both physical and chemical barriers.
Nonspecific responses provide an immediate response, while specific responses involve a delay between exposure and response.
If a women's mother had breast cancer why is she more likely to get breast cancer than a women's whose mother did NOT have breast cancer?
The women is pre-disposed to getting breast cancer due to her genetics.
The women is more likely to get breast cancer because of where she lives.
The women is more likely to get breast cancer because she does not routinely take showers.
None of these.
Which of the brain regions marked on the diagram below is the frontal lobe?
A
B
C
D
What lobe is found in the area designated by label 2?
Frontal
Temporal
Occipital
Parietal
What is the name of the highlighted portion of the brain?
Frontal
Occipital
Temporal
Parietal
The occipital lobe is indicated by which letter in the diagram?
A
B
C
D
Which of the following organs dilates to allow a baby to enter into the world?
Uterus
Cervix
Ovary
Vagina
Which of the following organs is most similar in function to the function of the ovary?
Testes
Scrotum
Penis
Epididymis
