Show Menu
Cheatography
  1. Home >
  2. Education >

Cardiac Muscle Cheat Sheet (DRAFT) by

Cardiac muscle cheat sheet

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Charac­ter­istics of Cardiac Muscle

Striated
Thin filaments contain tropom­yosin and troponin
contains an abundance of mitoch­ondria and myoglobin
possess T-tubules and sarcop­lasmic reticulum
Displays pacemaker activity initiating its own action potentials
Connected by gap-ju­nctions
Innervated by autonomic neuronal fibers
action potentials are longer in duration than both smooth and skeletal muscle
 

Flow of Blood in Heart

Oxygen­-poor blood enters right atrium via the inferior and superior vena cava veins.
Left atrium receives oxygen­-rich blood via left and right pulmonary veins
Right ventricle receives the oxygen­-poor blood and pumps it into the pulmonary artery which is then
Oxygen­-rich blood is received at the left ventricle and pumped into the aorta