Transcript POWERPOINT JEOPARDY

Nervous
System
Senses
Endocrine
System
Blood
Circulatory
System
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What is the function of
neuroglial cells?
Protection and support of
the neurons
What is the function of the
dendrite?
Transmit impulses to the
cell body
What is the all or nothing
principle?
An AP is triggered when a
threshold stimulus is
applied
What two factors
determine the rate of an
action potential?
Diameter of axon and
myelination
List the two main
structures found in the
CNS.
Brain and spinal cord
What is the name of the
photopigment found in the
rods?
Rhodopsin
What is the function of the
lens?
Refracts light to be
focused on retina
What happens to the
ciliary muscles and lens
when you look at a distant
object?
Muscles relax, lens is
elongated
What is the area of the
retina that does not
produce an image called?
Optic disc (blind spot)
Describe two symptoms of
glaucoma.
Loss of peripheral vision,
intraocular pressure
exceeding 25 mmHg
What are the endocrine
cells in the pancreas
called?
Islets of Langerhans
Which of the following is
not an example of an
endocrine gland?
(Sweat, adrenal,
parathyroid, pituitary or
pineal gland)
Sweat gland
What two hormones are
responsible for regulating
blood calcium levels?
Parathyroid hormone and
calcitonin
What hormone is typically
regulated by positive
feedback?
Oxytocin
What two hormones are
involved in the fight or
flight response?
Epinephrine and
norepinephrine
If a mother and her fetus
have an incompatible Rh
factor, what disorder
would result?
Erythroblastosis fetalis
Define hemocrit.
Measure of percent of
volume of whole blood
that is made up of RBC
Define hemopoiesis.
Blood cell formation
What prevents blood loss
in a damaged vessel?
Hemostasis (platelet plug
formation, vascular
spasm, coagulation)
Describe antigens,
antibodies and Rh factor
found in A- and B+
individuals
A- carries A antigens; antiB antibodies and no Rh
B+ carries B antigens;
anti-A antibodies and Rh
What surrounds the heart?
What is its function?
Pericardium; protects
heart from overextension
What is the function of the
atrio-ventricular (AV)
valves?
Prevent backflow of blood
from ventricles to atrium
What is the pacemaker of
the heart?
SA node (sinoatrial node)
How are veins and arteries
different structurally?
Veins have valves
What is the function of
capillaries?
Exchange of gases and
nutrients between cells
and blood