The SA Node is the heart's normal pacemaker. When the SA Node depolarizes, electrical signal spreads through the atrial muscle causing contraction.
Explanation:
Inherent rhythmicity / automaticity - The property of the pacemaker cells of the heart to start electrical sequence of depolarization and repolarization.
SA Node or Sino-atrial Node generates the electrical signal.
The electrical signal passes through internodal pathways, atrial fibres, atrioventricular node (AV Node), the bundle of His, Purkinje fibres, right bundle branch, left bundle branch.
Systole - Contraction of cells when the electrical signal of depolarization reaches the contractile cells.
Diastole - Relaxation of cells when the electrical signal of repolarization reaches the myocardial cells.
Can you be more detailed with the question?
Answer:
mother- releases hormones, lowers risk of breast cancer, lowers risk of ovarian cancer, and reduces uterine bleeding. Child- provides nutrients, better survival for the babys first year, lowers risk of sudden infant death syndrome, and offers protection.
Explanation:
most likely a temp above 43 degrees celsius, i think this is correct but not entirely sure
Answer:
insomnia and restlessness and headaches are signs of depression
Explanation:
so B
or A
i dont thinks its c or d
