Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/25

Click to flip

25 Cards in this Set

  • Front
  • Back
The lymphatic system consists of all the following except:
A) blood
B) lymph nodes
C) lymphatic vessels
D) lymph
A) blood
Which of the following applies to the thoracic duct?
A) it drains the entire body above the diaphragm
B) it empties its contents into the subclavian vein
C) it carries blood into the lymphatic system
D) it arises in the vessels of the brain
B) it empties its contents into the subclavian vein
Lymphatic capillaries resemble blood capillaries because lymphatic capillaries
A) have the same permeability as blood capillaries
B) lead to the vena cava
C) have a lining of endothelium
D) are thick-walled tubes
C) have a lining of endothelium
The fluid that passes through the lymphatic vessels
A) flows toward the lungs
B) passes from the lymphatic vessels into the arteries
C) enters the left ventricle of the heart through the right thoracic duct
D) moves in a single direction toward the heart
D) moves in a single direction toward the heart
The T-lymphocytes and B-lymphocytes are the major cells of the
A) lymph nodes
B) lymphatic vessels
C) adrenal gland
D) thymus
A) lymph nodes
All the following are important functions of the lymph nodes except
A) they serve as sites for production of antibodies
B) they remove foreign material phagocytized by macrophages
C) they are the sites where antigens stimulate the immune system
D) they function in the production of neutrophils, eosinophils, and basophils
D) they function in the production of neutrophils, eosinophils, and basophils
Lymph nodes may be located in the human body in the tissues of the
A) stomach and brain
B) groin and neck
C) ventricle and atrium
D) thyroid gland and adrenal gland
B) groin and neck
The nodules of lymphoid tissue found in the wall of the intestinal tract are known as
A) Hashimoto's nodes
B) Grave's region
C) DiGeorge's nodes
D) Peyer's patches
D) Peyer's patches
In the human body, the thymus is located
A) along the femoral artery
B) in the medulla oblongata
C) in the mediastinum of the upper thorax
D) between the 19th and 20th vertebrae
C) in the mediastinum of the upper thorax
The movement of fluid through the lymphactic vessels is assisted by
A) pressure from the right ventricle
B) pressure of contracting skeletal muscles
C) movement of phagaocytes such as macro phages
D) movement of red blood cells
B) pressure of contracting skeletal muscles
The thymus is largest and most visible
A) in the teenage years
B) in senior citizen
C) between the ages of six and 12 years
D) in the fetal stage
D) in the fetal stage
All the following functions are associated with the spleen except
A) it provides a filtration system for blood
B) it is the site of red blood cell breakdown
C) it is a storage depot for blood
D) it is the major site of white blood cell formation
D) it is the major site of white blood cell formation
Which of the following describes the location of the spleen in the human body?
A) anterior to the diaphragm in the lower thoracic cavity
B) lateral to the vertebral column along the posterior thoracic wall
C) within the pelvic cavity
D) posterior to the diaphragm in the upper portion of the abdominal cavity
D) posterior to the diaphragm in the upper portion of the abdominal cavity
Which of the following is not likely to be found in the lymph?
A) red blood cells
B) protein molecules
C) microorganisms
D) macrophages
A) red blood cells
Those lymphatic vessels that are rich in fat
A) are found only in the brain
B) are known as lacteals
C) enter the left atrium of the heart
D) are found only within the spleen
B) are known as lacteals
All the cells of the immune system arise from
A) cells in the sinoatrial node
B) primitive cells in the bone marrow
C) primitive cells in the thymus
D) cells located primarily in the pons of the brain
B) primitive cells in the bone marrow
T-lymphocytes are so-named because they are produced primarily in the
A) thyroid gland
B) tissues of the thorax
C) tissues stimulated by the trigeminal nerve
D) thymus
D) thymus
The immune system in humans becomes fully functional
A) about three months before birth
B) at birth
C) six months after birth
D) about one year after birth
C) six months after birth
All the following characteristics apply to antigens except
A) they may be cellular substances such as macromolecules
B) they may consist of proteins or polysaccharides
C) the list of possible antigens is very limited
D) they stimulate the immune system
C) the list of possible antigens is very limited
The cells that set the immune process into motion are phagocytic cells known as
A) eosinophils
B) macrophages
C) plasma cells
D) antigens
B) macrophages
The activity of T-lymphocytes brings about
A) the production of antibodies by plasma cells
B) the release of antigens by bacteria
C) cell-mediated immunity
D) the reaction between antigens and antibody molecules
C) cell-mediated immunity
The lymphokines secreted by cytotoxic T-lymphocytes increase the activity of
A) red blood cells
B) brain cells
C) macrophages
D) B-lymphocytes
C) macrophages
Once they have reacted with antigen molecules, the B-lymphocytes of the immune system
A) leave the lymphoid tissue and proceed to the antigen site
B) change into red blood cells to secrete toxins
C) change into macrophages to perform phagocytosis
D) convert into plasma cells to secrete antibodies
D) convert into plasma cells to secrete antibodies
Which of the following is true of antibody molecules?
A) there are five different types of antibody molecules
B) all antibody molecules are composed of polysaccharide
C) an antibody molecule is often depicted as a Y
D) one end of an antibody is highly specific for binding an antigen
B) all antibody molecules are composed of polysaccharide
Antibody molecules neutralize invading microorganisms by all of the following methods except
A) they bind bacteria together in a meshlike pattern
B) they encourage phagocytosis of microorganisms
C) they set off a series of reaction breaking microbial membranes
D) they rob microorganisms of the oxygen they need for metabolism
D) they rob microorganisms of the oxygen they need for metabolism