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No, involuntary responses are not the only part of the autonomic nervous system (ANS). The ANS controls involuntary physiological functions such as heart rate, digestion, and respiratory rate, but it also interacts with voluntary responses and higher brain functions. It is divided into the sympathetic and parasympathetic divisions, which work together to maintain homeostasis in the body. Thus, while the ANS predominantly manages involuntary processes, its influence extends to overall bodily function and behavior.
What else can I help you with?
What is the difference between two parts of the PNS?
The peripheral nervous system (PNS) consists of the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements and transmits sensory information, while the autonomic nervous system regulates involuntary functions like heart rate and digestion.
What branch of spinal nerve only contain autonomic fibers?
The branch of the spinal nerve that contains only autonomic fibers is the rami communicantes. These are divided into the white rami communicantes, which carry preganglionic sympathetic fibers to the sympathetic ganglia, and the gray rami communicantes, which carry postganglionic sympathetic fibers back to the spinal nerve. These branches are essential for the autonomic nervous system's regulation of involuntary functions.
What is the difference between involuntary muscle and cardiac muscle?
Voluntary (or skeletal) muscle cells, involuntary (or smooth) muscle cells, and cardiac (or heart) muscle cells, all have thick and thin filaments (myosin and actin, respectively), for their sliding filament mechanism, enabling movements However, since their funscions are different, there are significiant differences in their structures: shapes, sizes, proportion of filaments, their response to stimulus, and the kind of stimulus itself, for example.
What is the involutary muscle?
Cardiac muscle (heart muscle): a type of striated muscle exclusively in the heart, can be called an involuntary muscle, although it may be classified separately due to its structural differences. It is controlled by nerve impulses produced by a natural pacemaker called the sinoatrial node, the rate of which is controlled by the autonomic nervous system. Smooth muscles, a type of non-striated muscle, include the radially arranged iris muscles, the digestive system, reproductive system, major blood vessels, the skin, and internal organs. These are also controlled by the autonomic nervous system. Involuntary muscles are muscles controlled only by the central nervous system, and (in some cases) by hormones. These cannot be controlled consciously. The pupils of the eye are an example of this as they contract quickly when the eye is exposed to bright light
Is Autonomic ganglia are motor ganglia only?
No, autonomic ganglia can contain both motor and sensory neurons. Motor neurons in autonomic ganglia innervate smooth muscle, cardiac muscle, and glands, while sensory neurons can detect stimuli within the autonomic nervous system.
A reflex pathway having only one synapse in the CNS?
Reflexes are rapid involuntary responses to a given stimuli. The reflex pathway that only has one synapse in the CNS is called the monosynaptic reflex arc.
Are autonomic reflexes integrated in the cns?
Autonomic reflexes concerning digestive, smooth muscle, respiration all have to do with the Peripheral Nervous System (ANS, SNS, and ENS). <-- look it up if you dont know what that is. But the CNS is only the brain and the spinal cord... and there arent any autonomic reflexes there.
Is a conduction through the autonomic efferent chain faster than conduction the somatic motor system?
Yes, conduction through the autonomic efferent chain is generally slower than conduction through the somatic motor system. This is because the autonomic nervous system involves two neurons in the pathway (preganglionic and postganglionic), which introduces a delay in signal transmission compared to the direct pathway in the somatic motor system with only one neuron.
Are basic reflexes autonomic only?
yes
Are smooth muscles under voluntary control?
Smooth muscles are found in blood vessels and in organs (ie the bladder), and is stimulated by the autonomic nervous system, the control system for involuntary reactions. Smooth muscles can also be controlled by hormones, neurotransmitters and other chemicals such as calcium and potassium. Depending on what chemical binds to the muscles receptor sites will change what type of reaction occurs within the muscle itself. For example if you were frightened, your heart would beat faster, you would breathe deeper -- and not because you wanted to do it, but because your body automatically reacted to the stimulus. That is what the autonomic nervous system relies on -- automatic responses.
Is acetylcholine only found at the neuromuscular junction?
No, acetylcholine is not only found at the neuromuscular junction. It is a neurotransmitter that is also found in the brain and is involved in various functions such as memory, learning, and regulating the autonomic nervous system.
An automatic response that involves only part of an organism is?
Reflexes are automatic responses that involve only part of an organism. They are quick, involuntary reactions to a stimulus that help protect the body from harm, such as pulling your hand away from a hot object.
