Genitalia/EKG Flashcards
(131 cards)
The pelvic organs are supported by a sling of tissues composed of
muscle, ligaments and fascia, through which the urethra, vagina and rectum all pass
in the United States the range of age of menarche is between
9 and 16
Normal menses is
Every 24 to 32 days
Menopause is defined as no menses for 12 months, and the average age of menopause is
no menses for 12 months; 45 to 52 years
Although thought of as primarily a male problem, women can also have ___ in the groin
hernias
The SA node initiates the ___
normal rhythmic electrical impulse.
depolarization of the atria inscribes the ___ wave on the EKG
P
The SA node rhythmically depolarizes and this wave of depolarization spreads through the atria causing them to
contract
Because the SA node is very small, you do not see
its electrical activity on the EKG
When the atrial depolarization stimulus reaches the AV node, depolarization slows, producing a brief pause, and allowing
the atrial blood to enter the ventricles
Once the depolarization reaches the ventricular conduction system, it conducts very rapidly through the ___ and the ___
Bundle of His (junctional bundle) and the left and right bundle branches and their subdivisions.
The terminal filaments of the Purkinje fibers distribute the depolarization stimulus to the
ventricular myocardial cells
P wave represents the
depolarization of the atria
The cells of the ventricles have the ___ firing rate, which is ___
slowest; 20-40 per minute
Depolarization of the ventricular myocardium produces the
QRS complex on the EKG
Following the QRS complex, there is a segment of the horizontal baseline knows as the ____ which represents the plateau phase of repolarization
ST segment
The T wave represents
the final phase of ventricular depolarization (becomes negatively charged)
Ventricular contraction (systole) begins with the ___ and lasts until the end of the ___
QRS; T wave
A long QT interval often warns that the patient is vulnerable to
irregular rhythms
PR interval normally lasts
QRS complex normally lasts
QT interval normally lasts
The cardiac cycle is represented by
the P wave, the QRS complex, the T wave and the baseline that follows until another P wave appears
Physiologically, the cardiac cycle represents
atrial systole or atrial kick – ventricular systole – then the resting stage that follows until another cycle begins again