SA Node<span> which is also known as the sinus node, is the natural pacemaker of
the heart. It controls the heart rate by generating electrical impulses
and then sending electrical signals through the heart muscle, causing
the heart to contract and pump blood throughout the body. </span>
The SA Node is located in the outer layer of the right atrium of the heart, near the superior vena cava. It is made up of a group of cells (myocytes) positioned on the
wall of the right atrium, at the center of the heart and near the
entrance of the superior vena cava. These cells contract at a rate of
about 70-80 times per minute, which make up the natural heart beat.
They are different ranks in a taxonomy hierarchy. The genus is more exclusive than the phylum.
Order:
Domain,
Kingdom,
Phylum,
Class,
Order,
Family,
Genus,
Species
Answer:
True
Explanation:
Assumption of risk is a defense in the rule of offences, which bars or decreases a plaintiff's right to retrieval in contradiction of a inattentive tort feasor if the offender can prove that the plaintiff willingly and meaningfully expected the hazards at subject inherent to the unsafe action in which the plaintiff was contributing. The most shared specimen is a waiver of obligation employed earlier contributing in a hazardous action. Frequently at matter in belongings where the respondent gifts an rapid statement of the danger defense is whether the plaintiff decided to assume the risk of the specific harm that happened.
Answer:
selective permeability
Explanation:
The property or characteristic of cellular membrane to allow certain substances to pass through the cell is known as selective permeability. The movement of molecules and ions across the cell can be active or passive.
