Uterine contraction. Drugs that bind to Beta 2 receptors (Beta 2 agonists) are used in the treatment of premature labour, this clinical application illustrates how Beta 2 receptors mediate tocolysis on the uterine muscle. Ritodrine is an example of a tocolytic drug.y Flavio Guzman, GuzmÃ¡n.M. D beta receptors are a subtype of adrenergic (receptor), adrenoceptor their activation triggers a (sympathomimetic) adrenergic. Response this article overviews the characteristics related to their physiology and pharmacological. Aspects in, addition a related article discusses alpha. receptors
î î î. Although an exact count is not available, it is likely that the human brain has as many as A) 10,000 neurons. B) 500,000 neurons. C) 1 million neurons. D) 10 million neurons. E) 100 billion neurons. The central nervous system is lacking in animals that have A) a complete gut. B) bilateral symmetry. C) radial symmetry. D) a closed ... E) ...he stretch receptors of the sensory neurons in the human knee-jerk reflex are located in the A) gastrocnemius muscle, in the calf.
The simplest type of nervous system is found in hydras and jellyfish (cnidarians) and is referred to as a nerve net.. Nerve nets do not have distinct central or peripheral regions, and lack anything that resembles a brain.Instead, the scattered nerve cells form loose networks in each cell layer of the body wall.n vertebrates, it also includes a spinal cord. The primary cell type found in the nervous system is the neuron, which has a cell body, containing the nucleus, and long extensions to carry information from one part of the body to another.