I think the Atrial fibrillation is the uncoordinated beating of the atria rapid. These are rhythm in which all the atrial activity is depicted as chaotic undulations of the base line. Atrial rhythms include; atrial fibrillation, atrial flutter, premature atrial contraction, wandering pacemaker. Atrial fibrillation can cause an increased risk of stroke, heart failure and other heart related complications.
the causes of most of them are unknown. Some birth defects are considered to be physical, while others are thought of as functional. Physical birth defects result in the malformation.
Answer:
Hypocalcemia is defined as low level of calcium in the serum.
It could be harmful to an individual in the following ways:
Convulsions, arrhythmias, tetany, and numbness in the hands and feet and around the mouth occur due to lowered threshold for depolarization causing increased responsiveness.
Life-threatening complications- Laryngospasm and Cardiac arrhythmias can arise.
Effects on cardiac output include:
(A) Negative chronotropic effect, or a decrease in heart rate.
(B) Negative inotropic effect, or a decrease in contractility
Answer:
reproductive hormone in men
Explanation:
Answer:
Nematodes are referred to as "pseudocoelomates" since their coelom is not entirely lined with mesoderm ally cell - derived in most forms, and they are triploblastic.
<h2>What is a nematode?</h2>
Any unsegmented worm of the phylum Nematoda, having an elongated, cylindrical body; a roundworm
<h2>What are characteristics of the pseudocoelomate phylum?</h2>
<em>-bilateral symmetry, unsegmented, triploblastic</em>
<em>-body cavity a pseudocoel</em>
<em>-size: some microscopic, others a few meters in length</em>
<em>-body veriform</em>
<em>-complete gut (2 cavities)</em>
The structure of the body wall of pseudocoelomates explained:
<em>-muscles are longitudinal (no circular) beneath the hypodermis</em>
<em>-non-living cuticle secreted by the hypodermis</em>
<em>-composed of many layers of collagen</em>
<em>-useful for protection and containing high pressure of hydrostatic skeleton</em>
<em>-muscles contract and push against</em> fluid which causes movement
