FINAL Flashcards
An advantage to adaptive immunity is ________.
its memory cells that provide quicker, larger and more efficient immune response upon second exposure to an antigen
An advantage of innate immunity is ________.
its barriers that prevent pathogens from entering into the body
Choose the best description of an antigen.
a particle that triggers the adaptive immunity
Which of the following is not a type of T cell?
antigenic
Which of the following best describes the qualities of most antigens?
macromolecules that are foreign to the host
B lymphocytes develop immunocompetence in the ________.
bone marrow
Inflammation ________.
brings more leukocytes to the sight of infection
All but one of the following occur during the inflammatory response. Select the example below that does not describe the process of inflammation.
Vasoconstriction will prevent excessive blood loss due to injury.
A flu vaccine is needed seasonally to be effective but a polio vaccine is only needed once. The best explanation of this is ________
the flu has several strains that change seasonally
A vaccine is effective because ________.
the secondary response of the adaptive immunity is faster and more efficient the primary response
The main site of gas exchange is the ________.
alveoli
The loudness of a person’s voice depends on the ________.
force with which air rushes across the vocal folds
Which of the following is the leading cause of cancer death for both men and women in North America?
lung
Surfactant helps to prevent the alveoli from collapsing by ________.
interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid
Tidal volume is air ________.
exchanged during normal breathing
Which of the following is NOT a form of lung cancer?
Kaposi’s sarcoma
The most powerful respiratory stimulus for breathing in a healthy person is ________.
increase of carbon dioxide
Which of the following refers to the movement of air into and out of the lungs?
pulmonary ventilation
The relationship between gas pressure and gas volume is described by ________.
Boyle’s law
Which of the following maintains the patency (openness) of the trachea?
C-shaped cartilage rings
Which of the organs listed below is involved in all of the following processes: secretion, mechanical breakdown of food, digestion and absorption?
the stomach
A ruptured appendix is life threatening because ________.
it is likely to cause massive infection of the abdominopelvic cavity
Which of the following is not true of saliva?
contains acids which aid in chemical digestion
All of the following are true of swallowing (deglutition) except one. Select the statement that is not true of swallowing.
The epiglottis assists in propelling food into the trachea.
Which of the following is true concerning the number and type of permanent teeth?
There are 32 permanent teeth, and the wisdom teeth are the last to emerge.
What part of the tooth bears the force and resists the friction of chewing?
enamel
The chemical and mechanical processes of food breakdown are called ________.
digestion
The mechanical and chemical receptors that control digestive activity are located ________.
in the walls of the tract organs
Select the description below that illustrates a difference between a sphincter and circular muscle
A sphincter is a thickening of circular muscle that can prevent the movement of digesting materials while circular muscle is involved in propulsion digesting material.
A doctor consulting a patient that recently has had their gall bladder removed would likely advise ________.
eating foods that are low in fat
The bolus is liquefied in the ________ and it is now called chyme.
stomach
Which vitamin requires intrinsic factor in order to be absorbed?
b12
The sheets of peritoneal membrane that hold the digestive tract in place are called ________.
mesenteries
The dental formula for an adult is 2-1-2-3. What does the 1 stand for?
canine tooth
Peristaltic waves are ________.
waves of muscular contractions that propel contents from one point to another