Post on 12-Jan-2016
Hodge-Podge
Lymphatic System
Circulatory SystemSensesNervous
System
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Describe what happens during repolarization of a
neuron.
Restoration of the difference in charge
between inside & outside of membrane (K+
outside, Na+ inside)
Where does continuous conduction of action
potentials occur?
Unmyelinated axons
What hollow structures circulate cerebrospinal fluid through the brain?
Ventricles (Lateral-third-aqueduct-fourth)
List the structures involved in a reflex arc in
order.
Receptor, sensory neuron, integration
center, motor neuron, effector
In a quadriplegic, what region of the spine is
injured? In a paraplegic?
Quad cervical; Para below cervical
Define accommodation.
Automatic adjustment of the lens (to change from close to distant vision)
Auditory receptors for sensations are found
where?
Organ of Corti on basilar membrane in cochlea of
inner ear
What inner ear structure maintains balance during
rotation?
Semi-circular canals
What are the names of the auditory ossicles of
the middle ear?
Stapes, incus and malleus
Define otoliths.
Particles of calcium carbonate found in the
inner ear that are used to maintain balance.
Describe the function of the circulatory system.
Transport, protection and maintenance of
temperature
Describe the QRS section of an EKG and what it
represents.
Ventricular depolarization
Trace the path of an action potential through
the heart.
SA node-AV node-bundle of His-branches-Purkinje
fibers
Pulmonary arteries carry blood where in relation to
the heart?
Away from (to the lungs)
Define aneurysm.
Bulge in an artery; artery weakens and can fill with
blood
Give four examples of substance that can act as
antigens.
Bacteria, pollen, food and viruses
What is the difference between cell-mediated and humoral immunity?
Cell-mediated produces T cells; humoral produces B
cells and antibodies
Describe the difference between the first and
second encounter with an antigen in terms of
antibodies.1st takes days to build
antibodies; 2nd is intense and rapid
What is the body’s 1st line of defense in terms of
immunity?
Physical barriers-skin, mucous membranes,
hair, sweat, saliva, tears, gastric juices
What is immunological tolerance?
The body’s ability to recognize self-cells and therefore NOT attack
them.
Describe Boyle’s Law in relation to pulmonary
ventilation.
It is inversely proportional; increase in
volume=decrease in pressure (and vice-versa)
List the components of glomerular filtrate.
Glucose, amino acids, urea
Describe the process of digestion.
Digestion is the process of breaking down food into molecules that are small enough to enter
body cells
List the end products of digestion.
Monosaccharides, amino acids, glycerol and fatty
acids
What are the functions of the large and small
intestines in the digestive tract?
Large- absorb water and eliminate waste from body; small-absorb
nutrients and minerals from food