3: (Latest Update )
Human Anatomy & Physiology II
with Lab | Questions & Answers |
Grade A | 100% Correct - Portage
Learning
Cardiovascular System: Blood Vessels
Question:
Cardiovascular System
Answer:
Network of heart, blood, and vessels that circulates oxygen, nutrients, and
waste.
Question:
Myocardium
Answer:
Cardiac muscle tissue found only in the heart.
,Question:
Autorhythmicity
Answer:
Ability of cardiac muscle to generate its own electrical impulses.
Question:
Myocardial Contractile Cells
Answer:
Cells responsible for pumping blood through contraction (99% of heart cells).
Question:
Myocardial Conducting Cells
Answer:
Cells that create and transmit electrical impulses (1% of heart cells).
Question:
Purkinje Cells
Answer:
Specialized conducting cells that rapidly spread impulses through ventricles.
, Question:
Cardiomyocyte
Answer:
Cardiac muscle cell; short, branched, usually one nucleus.
Question:
Sarcomere
Answer:
Contractile unit of muscle from Z-line to Z-line.
Question:
Z-Line
Answer:
Boundary of sarcomere where thin filaments anchor.
Question:
A Band
Answer:
Dark band in striated muscle containing thick filaments.