A direct indication that the white blood cells of the body are functioning would be
The immune system of a person is capable of fighting with infectious microorganisms and can easily protect the body from infectious diseases. This condition indicates that the white blood cells are functioning properly.
Further Explanation:
The foreign particles can be either microbial pathogens or dust particles and pollens. Depending on the type of foreign body, the innate immune system functions. The physical barriers like skin, mucous membranes, and lungs help in preventing foreign particle entry. The pathogens are removed by the action of immune cells called white blood cells (monocytes, macrophages, dendritic cells, mast cells, and polymorphonuclear leukocytes). In a healthy individual, the total WBC (white blood cell) count ranges between 4,500 to 11,000/. When an infection is caused, or the person has some allergy, this count is increased.
The effective immune system is fighting with any microorganism or damage that can efficiently protect the body by releasing certain chemicals. The damaged host cells also release certain chemicals (vasoactive factors) like histamine, prostaglandins, and bradykinin. This causes the movement of the fluid in the extracellular spaces. All these factors cause an increase in blood flow and fluid retention (that cause edema). The increased vascular permeability helps the WBCs to reach that area easily.The neutrophils that are delivered to the inflammation site phagocytize microbes and kill it.
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Answer Details:
Grade: High School
Subjects: Biology
Chapter: Immunology
Keywords:
White blood cell, immune system, infection, neutrophils, lungs, foreign particle, damage, kill, phagocytize, histamine, prostaglandins.
Select the correct answer.
What hormonal change occurs after fertilization that causes the endometrial lining to remain intact so that the fertilized egg can successfully implant in it?
A. The pituitary gland secretes oxytocin, which maintains the endometrial lining.
B. The pituitary gland secretes follicle stimulating hormone, which acts on the follicles and stimulates them to produce progesterone.
C. The hypothalamus secretes gonadotropin releasing hormone, which maintains the endometrial lining.
D. The developing embryo secretes human chorionic gonadotropin, which prevents the corpus luteum from disintegrating.
E. The developing embryo takes over the production of progesterone after the breakdown of the corpus luteum to maintain the endometrial lining.
Answer:
B. The pituitary gland secretes follicle stimulating hormone, which acts on the follicles and stimulates them to produce progesterone.
Explanation:
what kind of crystal is halite crystal (rock salt)?
Which salivary gland, located ventral to the ear, produces nearly half of the total volume of saliva produced?
Which of these connections are used for camcorders, dvd players, and gaming consoles?
The FireWiire is connection used for camcorders, DVD players, and gaming consoles. The standard that defines the FireWire connection is IEEE 1394. IT is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer.
Final answer:
Camcorders, DVD players, and gaming consoles often use HDMI for modern devices, with Component Video, Composite Video, and S-Video being options for older devices.
Explanation:
The connections that are typically used for devices such as camcorders, DVD players, and gaming consoles include HDMI (High-Definition Multimedia Interface), Component Video (YPbPr), Composite Video (RCA), and S-Video. However, the most common connection used in modern devices is HDMI, which provides high-quality digital video and audio through a single cable. Older devices or those requiring analog input might use Component, Composite, or S-Video connections. It is important to select the correct type of cable to match the ports available on both the device and the display (TV or monitor) to ensure compatibility and the best possible quality of the media.
Explain how both bottom-up and top-down processing are involved in the "crystal running on the beach" example.
Some materials can move across the cell membrane against a concentration gradient by what
A serious side effect associated with typical antipsychotic medications is a neurological condition characterized by abnormal and involuntary movements. this condition is called
The condition that is being described above is tardive dyskinesia. This is a side effect when an individual has ingested or is taking up medications that are anti psychotic and this will likely cause the individual to acquire movement disorder.
What might cause a virus in the lysogenic cycle to suddenly enter the lytic cycle?
Answer:
The correct answer would be the "stressful conditions of the host cell."
In the lysogenic cycle, the viral genome gets attached and integrated into host cell chromosomes and the virus becomes dormant and is termed as a prophage.
However, environmental stress to the host cell such as exposure to a toxic substance, starvation et cetera may cause the prophage to be excised which then enters the lytic cycle.
What kind of tissue is the precursor of long bones in the fetal skeleton?
Why is the catalytic activity of enzymes essential to ensure and regulate cellular metabolism?
In flatworms, the ____ is/are used to gather food.
a. ​nephridia
b. ​contractile vacuoles
c. ​malpighian tubules
d. ​flame cells
e. ​pharynx
Is key lime pie considered a lipid?
No, key lime pie is not considered a lipid.
Explanation:No, key lime pie is not considered a lipid. Lipids are a class of water-insoluble compounds that include oils, fats, and waxes. They are made up of triglycerides, which consist of glycerol combined with three fatty acid molecules. Key lime pie is a dessert made with key lime juice, sweetened condensed milk, and an egg-based custard, which are not classified as lipids.
The current rapid loss of species is considered by many scientists to be another mass extinction. what may be causing this increase in extinction rate, beyond background extinction?
The ________ theory describes the origin of the planets as having been formed by accretion of small particles into progressively larger and larger bodies.
Answer:
big bang
Explanation:
In what ways do enzymes control the cell cycle?
A mutation has occurred that has made uvrd non-functional. what result will this have on damaged dna?
Folds exhibit which type of deformation? folds exhibit which type of deformation? elastic ductile tensional brittle
How would frigid antarctic water affect the ice fish's need for oxygen?
Which is an example of acquisition of natural passive immunity?
An injury to which marked region would hamper the sleep-wake cycle?
Answer:
Hypothalimus... Starting at the top as 1, then going counterclockwise being 2, it would be that next one. Number 2. The two in back are 3 and 4. So, #2 is hypthalimus
Explanation:
Which of the following organelles is found in both plant and animal cells?
a.cell wall
b.chloroplast
c.central vacuole
d. mitochondrium
In which phase of the cell cycle are cells most often found?
Which muscle bends the lower arm toward the upper arm?
Answer:
the smooth muscle
Explanation:
The tube that connects the mouth and stomach is the esophagus
a. True
b. False
Which of these is the best model of a prokaryotic cell?
Zac and nina are studying for a psychology test. zac states that heritability refers to the extent to which genes are responsible for an individual's level of a particular characteristic is genetic. nina disagrees, stating that heritability refers to the extent to which genes are responsible for variation among individuals in a particular characteristic. which student is correct
Nina is right. Heritability doesn't define how much of a character trait is genetic, it explains the extent to which genes cause variations in that specific trait among a population.
Explanation:In this scenario between Zac and Nina, Nina is the correct one. Heritability does not exclusively define how much of an individual's characteristic is due to their genes. Rather, heritability explains the variation or differences we see among individuals within a population. For example, if we were studying height among a group of people, heritability would refer to how much of the variation in height is due to genetic factors versus environmental factors.
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A client presents at the clinic for a routine check-up. the nurse notes that she is dressed in warm clothing even though the temperature outside is 73°f. the nurse also notes that the patient has gained 10 pounds since her last visit 9 months ago. what might the nurse suspect
The stomach select one:
a. secretes lipases that complete fat digestion.
b. serves as a temporary storage site
c. manufactures bile.
d. contents are highly alkaline.
Cleavage in minerals refers to ________.