A&P Flashcards
Where are striated muscles located?
heart and skeletal muscles
The pressure in the systemic arteries during ventricular contraction is?
systolic blood pressure
The difference between the systolic and diastolic pressures of the expanding and contracting arterial walls is the?
pulse
Input from what system causes vasoconstriction during exercise and therefore an increase in bp?
sympathetic nervous system
Cardiac muscle is:
striated involuntary
In what order does the impulse for depolarization travel through the heart?
SA node, AV node, Bundle of HIS, purkinje fibers
The wave on a EKG that is associated with the atrial wall depolarization is the:
P wave
PR interval
length of time for impulse to travel through the AV node
T wave
ventricular repolarization
QRS complex
ventricular depolarization
The SA node is located in the wall of which chamber?
right atrium
The muscular sphincter located between the stomach and duodenum is the:
pylorus
Cardia:
muscular sphincter between esophagus and stomach
Chyme:
digested stomach contents
Rugae:
long folds in stomach wall
