Answer:
True
Explanation:
Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.
Each class of pacemaker cells has its own intrinsic rate.
For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).
The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).
Answer:
Explanation: Pharmaceutical care services in primary care have been an area of research from the initial definitions in the early 1990s. The research has resulted in a range of evidence-based services delivered in primary care setting, from the community pharmacies and by the pharmacy workforce. Research has also been focusing on the implementation in community pharmacy practice, taking into account the change in perception of the pharmacy that is needed to deliver pharmaceutical care services. In many countries, pharmaceutical care services are remunerated and to a some extent are delivered to the public, although there is still an implementation gap between what is the potential of service delivery and what is actually delivered. The services are implemented in primary care, primarily delivered by the community pharmacy confirming the role of the community pharmacy in the primary healthcare system.
None of the above. Neurotransmitters are chemicals like serotonin, norepinephrine and dopamine inside the brain and thus deal with the specialties of medicine, neurology and psychiatry. Hope that helps!
Answer:
Gastrulation.
Explanation:
The embryonic development occurs through the different developmental stages like cleavage, morula, blastula and so on. The formation of the germ layers occur in the gastrulation period.
The primitive streak is the structure that develops during the early stages of the gastrulation. As the embryo becomes asymmetric., the cells moves from their initial position and leads to the formation of primitive streak in the gastrulation phase.
Thus, the correct answer is option (C).
