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Zehr:Exam IV
biology questions
41
Biology
Undergraduate 1
05/01/2009

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Term
Which of the following cell types is destroyed by the AIDS virus?
Definition
Helper T-celler
Term
Which immunoglobulin (gamma globulin)is involved in allergic reactions?
Definition
IgE
Term
What kind of cell makes antibodies?
Definition
B-cell
Term
What is immunity?
Definition
Immunity that is gained by receiving antibodies that were made in another organism.
Term
What is an antigenic determinant?
Definition
The portion of an antigen that binds to an antibody.
Term
Which cell plays a major role in graft rejection?
Definition
T-cell
Term
Disruption of a cell as a result of the immune response is called?
Definition
lysis
Term
What makes up the largest grooup of immunoglobulins in human blood?
Definition
IgG
Term
What is secreted by mast cells in the allergic response?
Definition
Histamine
Term
What class of gamma globulins is found in saliva?
Definition
IgA
Term
What is the characteristic of active immunity?
Definition
The organism responds directly to an antigen by making antibodies.
Term
what is released from the neural lobe of the pituitary?
Definition
ADH(vasopressin)
Term
What applies to endocrine glands?
Definition
They produce hormones
Term
Increased urine production when a person is consuming alcoholic beverages is associated with?
Definition
Increase amounts of glucocorticoids
Term
which is a gonadotrophic hormone?
Definition
FSH
Term
Which hormone stimulates deposition of calcium in bone?
Definition
Calcitonin
Term
A deficiency what in the diet may lead to a goiter?
Definition
Iodine
Term
What is often seen in untreated diabetes?
Definition
1,sugar in urine
2,frequent urination
3,extreme hunger and thirst
Term
What is associated with an excess of growth hoemone in the adult?
Definition
Acromegaly
Term
Where is insulin normally made in man?
Definition
Islets of langerhans
Term
What is produced by the adrenal medulla?
Definition
Epinephrine
Term
What is associated with hyperthyroidism?
Definition
High blood pressure
Term
What is not made in pituitary?
Definition
Calcitonin
(Growth hormone, ACTH are made in pituitary)
Term
What tissues lacks blood vessels?
Definition
Cartilage
Term
Which vitamin is needed for normal absorption of calcium from food?
Definition
Vitamin D
Term
Name the part of a cell that conducts a nerve impulse away from the nerve cell body?
Definition
Axon
Term
Where are nerve cell bodies found in the central nervous system?
Definition
In gray matter
Term
What is the functional junction between two nerve cells called?
Definition
A synapse
Term
What applies to axons?
Definition
1,There is only one per nerve cell.
2,They are generally covered by myelin.
3,They are very long in some case.
Term
What portion of the brain controls heart rate, breathing, and blood pressure?
Definition
Medulla oblongata
Term
What portion of the brain is associated with sleep, emotions,hunger, and sexual activity?
Definition
Hypothalamus
Term
What portion of the brain is largely responsible for coordination of movement?
Definition
Cerebellum
Term
Which visceral motor system controls activities associated with "fight or flight" in males and "tend or befriend" in females?
Definition
Sympathetic
Term
In a resting nerve, the inside of the nerve is negatively charged compared to its outer surface. How is this difference in charge maintained?
Definition
Sodium-potassium pump
Term
What are membranes called that surround the central nervous system?
Definition
Meninges
Term
Name the portion of the central nervous system that receives all sensory information and distributes it to specific portions of the cerebrum.
Definition
Thalamus
Term
Name the portion of the retina where vision is sharpest.
Definition
The fovea centralis
Term
What part of the eye plays the greatest role in focusing an image on the retina?
Definition
Cornea
Term
What part of the inner ear plays a major role in maintaining balance?
Definition
Saccule and utricle
Term
What portion of the inner ear contains receptors for sound?
Definition
Cochlea
Term
Which bone is not a bone in the middle ear of a man?
Definition
Weberian ossicle
(Stapes, malleus and incus are bones in the middle ear)
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