What is the short reflex?
A long reflex has afferent branches that enter the spinal cord or brain and involve the efferent branches, as previously explained. A short reflex is completely peripheral and only involves the local integration of sensory input with motor output (Figure 3).
What is an example of a short reflex?
Short reflexes to the digestive system provide shortcuts for the enteric nervous system (ENS) to act quickly and effectively, and form a sort of "digestive brain". It reacts to digestive movement and chemical changes. ... The gastroileal reflex works with the gastrocolic reflex to stimulate the urge to defecate.
What are long visceral reflexes?
Visceral reflexes involve a glandular or non-skeletal muscular response carried out in internal organs such as the heart, blood vessels, or structures of the GI tract. They utilize neurons of the autonomic nervous system to elicit their actions.
What are the different types of reflexes?
There are two types of reflex arcs:the autonomic reflex arc, affecting inner organs, and the somatic reflex arc, affecting muscles.
What effect is controlled by the long reflex?
Movement and secretion are regulated by long reflexes from the central nervous system (CNS), short reflexes from the enteric nervous system (ENS), and reflexes from the gastrointestinal system (GI) peptides that work in harmony with each other.
What is extrinsic reflex?
The enterogastric reflex is one of the three extrinsic reflexes of the gastrointestinal tract, the other two being the gastroileal reflex and the gastrocolic reflex. The enterogastric reflex is stimulated by duodenal distension. It can also be stimulated by a pH of 3-4 in the duodenum and by a pH of 1.5 in the stomach.
Do short reflexes involve the CNS?
The short reflex involves the direct stimulation of a postganglionic fiber by the sensory neuron, whereas the long reflex involves integration in the spinal cord or brain. The difference between short and long reflexes is in the involvement of the CNS.
What is reverse Enterogastric reflex?
A nervous reflex whereby stretching of the wall of the duodenum results in inhibition of gastric motility and reduced rate of emptying of the stomach.
What is Intestino intestinal reflex?
The. intestino-intestinal inhibitory reflex, i. e. the inhibition of tone and rhythmicity pro- duced in one segment of intestine by distension of some other separate section of the. gut, represents such an autonomic spinal reflex (Chang and Hsu 1954, Johansson and.
What is homeostatic reflex?
Reflexes maintain homeostasis (autonomic reflexes) – heart rate, breathing rate, blood pressure, and digestion. ... Reflexes also carry out the automatic action of swallowing, sneezing, coughing, and vomiting.
Related questions
Related
What is Viscero visceral reflex?
Viscero-visceral reflex -- occurs when localized visceral stimuli produce patterns of reflex activity in segmentally related visceral structures. For example, preganglionic autonomic neurons in the spinal cord may receive afferent activity from the viscera.
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What are 4 types of reflexes?
In our discussion we will examine four major reflexes that are integrated within the spinal cord: the stretch reflex, the Golgi tendon reflex, the withdrawal reflex and the crossed extensor reflex.
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What are the differences between long and short reflexes?
- Long reflexes to the digestive system involve a sensory neuron that sends external or internal digestive information to the brain. ...
- Short reflexes to the digestive system provide shortcuts for the enteric nervous system (ENS) to act quickly and effectively,and form a sort of digestive brain. ...
- The enterogastric reflex is stimulated by the senses. ...
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What are common reflexes?
- What are the different types of reflexes. Well yes, it is related to contraction of stapedius and tensor tympani muscles in the middle ear that responses to high decibel sounds. Ankle jerk reflex: The jerking of ankle is the common reflex action that is tested by the doctors to check the reflex.
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What are the different types of reflexes?
- Tendon Reflexes. Tendons represent the weakest element of the musculoskeletal system and can be broken relatively easily compared to other aspects of the system.
- Withdrawal Reflexes. ...
- Stretch Reflexes. ...
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What are some examples of reflexes?
- A reflex action occurs when the body responds to a stimulus without the involvement of the brain. Batting of eyelids and rapid withdrawal of hands from a hot surface are examples of reflex actions.
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What are the different reflexes for stretching?What are the different reflexes for stretching?
A stretch reflex is the contraction of a muscle in response to its lengthwise stretch. Biceps reflex (C5, C6) Brachioradialis reflex (C5, C6, C7) Extensor digitorum reflex (C6, C7) Triceps reflex (C6, C7, C8) Patellar reflex or knee-jerk reflex (L2, L3, L4) Ankle jerk reflex (Achilles reflex) (S1, S2)
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What is an example of a short reflex?What is an example of a short reflex?
Short reflexes occur when only the enteric nervous system receives, integrates and acts upon the stimulus. An example is can be seen when sensory cells are stimulated in the wall of the GIT. These cells then send signals to the nerve plexuses in the GIT.
Related
When does the grasping reflex develop in humans?When does the grasping reflex develop in humans?
The reflex develops by 28 weeks gestation and disappears by six months. [4][6] The grasping reflex can be elicited by providing sustained pressure on the palmar aspect of the hand, resulting in flexion of the patient’s fingers grasping the object providing the pressure. This reflex develops by 28 weeks gestation and disappears by six months.
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What are the different tonic neck reflexes?What are the different tonic neck reflexes?
They include: Asymmetrical tonic neck reflex (ATNR) Palmomental reflex Moro reflex, also known as the startle reflex Palmar grasp reflex Rooting reflex Sucking reflex Symmetrical tonic neck reflex (STNR) Tonic labyrinthine reflex (TLR)
