1.
The largest organ in the Immune system is the _____.
Correct Answer
C. Skin
Explanation
The skin is the largest organ in the immune system because it acts as a physical barrier, protecting the body from pathogens and preventing them from entering. It also contains immune cells such as macrophages and dendritic cells that help to identify and destroy foreign invaders. Additionally, the skin produces antimicrobial peptides that have antimicrobial properties and further enhance the immune response.
2.
Nose hair is the body’s natural air filtration system.
Correct Answer
A. True
3.
The lymphatic system is made up of ___ cells, B cells, antibodies, and platelets.
Correct Answer
C. T
4.
When a virus enters the body, antibodies are sent to isolate the virus, then ___ cells arrive to infiltrate and finally kill the virus.
Correct Answer
B. B
5.
Bacteria are considered _________ parasites
Correct Answer
A. Living
6.
There are three types of bacteria.
Correct Answer
A. True
7.
Bacteria are not considered deadly due to the fact that it can not reproduce very quickly.
Correct Answer
B. False
Explanation
The statement is false because bacteria can actually reproduce very quickly, which is one of the reasons why they can be considered deadly. Bacteria have a short generation time and can multiply rapidly under favorable conditions. This ability to reproduce quickly allows them to reach high population numbers and potentially cause infections or diseases. Therefore, the statement that bacteria cannot reproduce very quickly is incorrect.
8.
The immune system can usually kill the entire foreign cells.
Correct Answer
B. False
Explanation
The statement "the immune system can usually kill the entire foreign cells" is false. While the immune system is designed to defend the body against foreign cells and pathogens, it may not always be able to completely eliminate them. Factors such as the strength of the immune response, the type of pathogen, and the individual's overall health can influence the effectiveness of the immune system in killing foreign cells. In some cases, the immune system may be able to control the infection or reduce its impact, but complete eradication may not always be possible.
9.
A carrier is some one who is infected, or has some of a particular foreign substance in him, yet shows no symptoms.
Correct Answer
A. True
Explanation
A carrier is an individual who has been infected with a particular foreign substance or pathogen but does not exhibit any symptoms of the infection. This means that they can unknowingly transmit the infection to others without being aware of their own condition. Therefore, the statement "A carrier is someone who is infected, or has some of a particular foreign substance in him, yet shows no symptoms" is true.
10.
Viral infection occurs when a virus enters a host, in this case a human host, and begins to use the host cells to replicate.
Correct Answer
A. True
Explanation
Viral infection occurs when a virus enters a human host and starts replicating using the host cells. This process allows the virus to multiply and spread throughout the body, causing various symptoms and potentially leading to illness. Therefore, the statement "Viral infection occurs when a virus enters a host, in this case a human host, and begins to use the host cells to replicate" is true.
11.
Bacterial infection occurs as a pathogen enters a human. The pathogen does not use the human cells as a host as the virus does, but it begins to kill them.
Correct Answer
A. True
Explanation
Bacterial infection occurs when a pathogen enters a human body and starts killing human cells. Unlike viruses, bacteria do not use human cells as hosts. This statement is true because it accurately describes the process of bacterial infection.
12.
The muscular system is not the largest system in the body.
Correct Answer
B. False
Explanation
The muscular system is actually the largest system in the body. It is made up of all the muscles in the body, which range from large muscles like the quadriceps in the thighs to smaller muscles like those in the fingers. These muscles are responsible for movement, stability, and heat production in the body. Therefore, the statement that the muscular system is not the largest system in the body is false.
13.
There are over _____ muscles located in the skull.
Correct Answer
D. Fourty
Explanation
The correct answer is "forty". This means that there are forty muscles located in the skull.
14.
Smooth muscle tissue is spindle shaped _____________ muscle
Correct Answer
A. Involuntary
Explanation
Smooth muscle tissue is spindle shaped and is found in the walls of organs such as the stomach, intestines, and blood vessels. Unlike skeletal muscle, which is under voluntary control, smooth muscle is involuntary, meaning it is not consciously controlled by the individual. This allows for automatic regulation of various bodily functions such as digestion, blood flow, and breathing.
15.
Wavelike motions called peristalsis characterize ___________ muscle.
Correct Answer
A. Smooth
16.
Cardiac muscle tissue is protected by a connective tissue, which is arranged in a ________ pattern.
Correct Answer
C. Figure eight
17.
ANS stands for
Correct Answer
B. Autonomic Nervous System
18.
Skeletal muscle cells are small and very fragile.
Correct Answer
A. True
19.
What is the function of the respiratory system?
Correct Answer
C. To breathe in Oxygen and out Carbon Dioxide
20.
The right lung has how many lobes?
Correct Answer
C. 3
21.
What is the technical term for breathing?
Correct Answer
B. Inspiration/Expiration
22.
What is gas exchange?
Correct Answer
A. Oxygen transfers from the alveoli to capillary
23.
When breathing in, what happens?
Correct Answer
A. DiapHragm flattens, ribs move up and out