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No evidence is available regarding changes in blood pressure directly due to the neurogenic bladder. However, a rise in blood pressure can occur indirectly if the cause is Spinal cord injury that also affect the kidneys. Kidneys would result in increase water and salt absorption causing indirect increase in blood pressure.
What else can I help you with?
What is the sacral reflex arc?
The sacral reflex arc refers to the neural pathway that controls involuntary responses in the sacral region of the spinal cord. It involves sensory neurons detecting stimuli and transmitting signals to the spinal cord, which then sends motor signals back to the muscles or glands in that region to produce a reflex action. This reflex arc helps regulate functions such as bowel and bladder control.
What is the duodenocolic reflex?
The duodenocolic reflex is a gastrocolic reflex that occurs when food enters the duodenum, triggering a reflex response in the colon to promote defecation. This reflex helps facilitate the movement of waste through the digestive system by increasing colonic motility.
What receptors are stimulated in the micturition reflex?
Micturation is what we commonally call urination. There are various stretch activated receptors within the bladder and in the adjoining sphincter that participate in the reflex. The bladder has to disallow backflow and coordinate the contraction of the bladder with the relaxation of the terminal sphincter. This is done through both voluntary control of the musculature as well via sympathetic and parasympathetic reflexes.
Examples of visceral reflexes?
An example of a visceral reflex would be the things your stomach has to do to digest food. There are sensory receptors that get stimulated when food is present and they tell other cells to get on with the work of digestion by a visceral (internal organ) reflex. Your digestive system has so many of these that the network involved with this is sometimes called the second brain.
Is the micturition reflex center is located in the pons?
No, the micturition reflex center is located in the sacral region of the spinal cord, specifically at the level of the S2 to S4 segments. This center regulates the process of urination, including the contraction of the bladder and relaxation of the internal urethral sphincter.
What is atrial reflex?
Atrial reflex is also known as the Bainbridge reflex which is an increase in heart rate due to central venous pressure of the heart. The atrial reflex controls the heart rate more so in dogs than in humans or other primates.
What triggers the micturition reflex in the walls of the bladder?
stretch receptors
What is emptying the bladder controlled by?
The micturition reflex tells you when you need to empty your bladder. This happens on average four to eight times a day. The reflex is controlled by your central nervous system. When your bladder is about half full, the stretch receptors in the walls of your bladder become active and send signals along your pelvic nerves to your spinal cord. A reflex signal is sent back to your bladder, which makes the detrusor muscle in the bladder wall contract. The contraction increases the pressure in your bladder, and this is what makes you want to pass urine. Because the external sphincter is under voluntary control, you don't urinate until you decide to relax this muscle. simple answer would be this; Sphincter muscle that surrounds the urethra.
What are 3 disorders of the autonomic sympathetic system precipitated by a malfunction?
Three disorders of the autonomic sympathetic system that can result from malfunction include postural orthostatic tachycardia syndrome (POTS), which causes an abnormal increase in heart rate upon standing; neurogenic bladder, leading to difficulties in bladder control; and vasovagal syncope, characterized by fainting due to abnormal autonomic responses to stress or pain. These conditions highlight the role of the sympathetic nervous system in regulating cardiovascular, urinary, and reflex responses in the body. Proper diagnosis and management are essential for improving patient outcomes.
How calculate bladder capacity of a child?
You can't. Just use general statistics for their age and gender. Bladder capacity also has little to do with mitrical reflex.
What does the micturition reflex feel like?
The micturition reflex is the body's automatic response to the feeling of a full bladder and typically manifests as the urge to urinate. This sensation can vary in intensity from mild discomfort to strong urgency depending on the individual and the level of bladder fullness.
Is the micturition reflex an autonomic spinal reflex?
Yes, the micturition reflex is an autonomic spinal reflex. It involves both the autonomic nervous system and the somatic nervous system, coordinating the contraction of the bladder's detrusor muscle and relaxation of the external urethral sphincter. This reflex is initiated when the bladder fills with urine, sending signals through stretch receptors to the spinal cord, leading to the urge to urinate. While it can be influenced by higher brain centers, the basic reflex arc operates at the spinal level.
What is urethral reflex?
The urethral reflex is a physiological response involving the contraction of the urethral sphincter muscles in response to bladder distension. This reflex helps control urination by preventing involuntary leakage of urine until an appropriate time for voiding. It is part of the body’s complex neural mechanisms that regulate bladder and sphincter coordination. The reflex can be influenced by various factors, including neurological health and social circumstances.
How stimulate the sacral reflex arc?
To stimulate the sacral reflex arc, you can apply pressure to the S2 to S4 dermatomes in the sacral region, typically done by gently tapping or stroking the perineal area. This can promote the reflexive contraction of the bladder and relaxation of the external urethral sphincter, triggering a reflexive voiding response.
Does epinephrine raise or lower blood pressure?
A definite NO. Phenylephrine causes marked increase in systolic, diastolic, and pulmonary pressures, as well as reflex bradycardia.
What is the sacral reflex arc?
The sacral reflex arc refers to the neural pathway that controls involuntary responses in the sacral region of the spinal cord. It involves sensory neurons detecting stimuli and transmitting signals to the spinal cord, which then sends motor signals back to the muscles or glands in that region to produce a reflex action. This reflex arc helps regulate functions such as bowel and bladder control.
Why is there hyperreflexia in pre-eclampsia?
Hyperreflexia in pre-eclampsia is primarily due to increased central nervous system excitability caused by the underlying abnormalities in the regulatory mechanisms of blood pressure and vascular function. The condition leads to elevated levels of circulating catecholamines and neurogenic factors, which can enhance reflex arcs. Additionally, the presence of cerebral edema and altered blood flow may further contribute to heightened reflex responses. These factors collectively result in the hyperreflexia observed in pre-eclampsia patients.
