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What is a baroreflex?
A baroreflex is a reflex which results from stimulation of a baroreceptor.
Which part of the brain participates in the baroreceptor reflex?
The medulla oblongata, specifically the nucleus tractus solitarius (NTS), is involved in regulating the baroreceptor reflex. The NTS receives input from baroreceptors located in blood vessels, helping to control blood pressure and heart rate.
With reference to the baroreceptor reflex explain why a person who is dehydrated or who has lost a lot of blood has a rapid pulse and cold clammy skin?
When the baroreceptors detect the loss of pressure, they try to return pressure to a homeostatic level. In order to do this, they constrict the blood vessels, which raises the pressure by having the same amount of blood within a smaller "container". The capillaries near the skin will aid in this by restricting flow, causing the skin to be cold and clammy. The baroreceptor reflex also raises the heart rate, which also has the affect of raising blood pressure.
What reflex is triggered to warm your body?
Shivering
What is an example of a stretch reflex triggered by passive muscle movement?
knee jerk reflex
Why does the body vomit?
Vomiting is a natural reflex triggered by the ingestion of toxins. This reflex is an important one to ensure that recognized toxins are expelled from the body.
Why is children more sensitive to oculocardiac reflex?
Children may be more sensitive to the oculocardiac reflex due to their smaller body size and developing nervous system. The reflex is triggered by pressure on the eye, which can be more pronounced in children due to their smaller eye size and more delicate orbital bones. Additionally, the autonomic nervous system in children may be more reactive, leading to a stronger cardiovascular response to the reflex stimulation.
What reflex occurs when you touch a baby's cheek?
The rooting reflex is triggered when you touch a baby's cheek, causing the baby to turn its head in the direction of the touch and open its mouth in search of food. This reflex helps the baby find the breast or bottle for feeding.
What type of reflex leads to secretion of saliva?
Not really reflex but the presence of food stimulates salivary gland. Sometimes even just the smell or sight of certain food do.
What is the reflex that stimulates mass movements of the colon?
The gastrocolic reflex is the reflex that stimulates mass movements of the colon. It is triggered by the presence of food in the stomach, causing the colon to contract and move its contents towards the rectum for elimination.
Is sweating a reflex triggered to warm your body?
No, sweating is not a reflex triggered to warm your body. Sweating is a response by your body to regulate its temperature by releasing heat through the evaporation of sweat on your skin, helping to cool you down.
How does the patella reflex differ from the pupillary reflex?
The patellar reflex involves the tapping of the patellar tendon to elicit a knee jerk response, testing the integrity of the spinal nerves. The pupillary reflex involves the constriction of the pupils in response to bright light, mediated by the autonomic nervous system. Both reflexes are protective mechanisms but involve different anatomical pathways.
