Yes, certain neurotransmitters can act as vasoconstrictors and stimulate smooth muscle. For example, norepinephrine primarily released from sympathetic nerve endings can cause vasoconstriction by binding to alpha-adrenergic receptors on smooth muscle cells in blood vessels. This action leads to increased vascular resistance and reduced blood flow to certain areas. Other neurotransmitters, such as angiotensin II, also have similar effects on smooth muscle contraction and vasoconstriction.
specific cardiac and smooth muscle fibers
It varies: In the somatic system (skeletal muscle) and parasympathetic branch of the autonomous nervous system (smooth & cardiac muscle) it is usually acetylcholine. In the sympathetic branch of the autonomous nervous system (smooth & cardiac muscle) it is usually norepinephrine (also called noradrenaline). There are exceptions, but this is the general rule.
smooth musclesmooth muscle
Voluntary muscle contraction is controlled by the central nervous system. The brain sends signals, in the form of action potentials, through the nervous system to the motor neuron that innervates several muscle fibers.Acetylcholine (ACh) is commonly secreted at neuromuscular junctions, the gaps between motor neurons and muscle cells, where it stimulates muscles to contract (by opening gated positive ion channels).
Smooth muscle
The main neurotransmitters involved with smooth muscle is Acetylcholine which causes an exited effect in smooth tissue and Adrenalin which causes an inhibitory effect. Adrenalin is produced by the adrenal gland when animals are in high stress or phsically elated situations. This causes the "flight or fight" mode in animals and increases function of regions of body necessary for survial such as skeletal muscle. Thus smooth muscle in the gut for example isn't vital in dangers situations therefore contraction of this muscle is decreased by the neurotransmitter.
SmoothI'm POSITIVE it's the Skeletal Muscle!
yes it is.....
No, "smooth" muscle is a type of muscle.
Smooth muscle is not striated, hence the name smooth muscle.nonotcardiac muscle
Autacoids are biological factors which act like local hormones, have a brief duration, act near the site of synthesis,[1] and are not blood borne. Autacoids are primarily characterized by the effect they have uponsmooth muscle.[2] With respect to vascular smooth muscle, there are both vasoconstrictor and vasodilatorautacoids........... Abdussalam kahttak bahadurkhel v
Outer = longitudinal smooth muscle Middle= circular smooth muscle Innermost= longitudinal smooth muscle