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What happen If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally?
If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally, it would lead to decreased drive for inspiration, resulting in respiratory depression or even respiratory arrest. This group of neurons plays a crucial role in regulating the rhythm and depth of breathing.
Is the dorsal respiratory group the expiratory center?
No, the dorsal respiratory group is typically associated with the inspiratory phase of breathing, while the ventral respiratory group is considered the expiratory center in the central nervous system.
What is a control center?
Respiratory control centers are located in the medulla and the pons. In the medulla the ventral respiratory group contains rhythm generators whose output drives respiration. Also in the medulla, the neurons of the dorsal respiratory group integrate peripheral sensory input and modify the rhythms generated by the VRG. The pons respiratory centers interact with the medulla centers to smooth the breathing pattern. The respiratory center (RC), itself, is located in the medulla oblongata, the lowermost portion of the brainstem.
Where in the medulla are the neurons that set the basic respiratory rhytm?
The answer is Ventral Respiratory Group or VRGIt contains the rhythm generators "whose output drives respiration".Hoehn, Marieb Human Anatomy & PhysiologyEighth Edition pg. 835
Nerve impulses that stimulate inspiration originate in which respiratory center?
The Pontine Respiratory Group stimulates abnormal breathing, called inspiration, during inhalation. The PRG consists of a network of neurons located in the rostral dorsal lateral pons.
Is The ventral respiratory group is contained within the pons?
No, the ventral respiratory group is not contained within the pons. It is a collection of neurons in the medulla oblongata that plays a major role in regulating respiration. The pons is also involved in regulating breathing, but it houses the pontine respiratory group.
What is a respiratory control center?
A respiratory control center is a region in the brainstem that regulates and controls breathing. It receives signals from the body to adjust the rate and depth of respiration based on factors like oxygen levels, carbon dioxide levels, and pH in the blood. This center coordinates the rhythm of inhalation and exhalation to maintain homeostasis.
Nerve impulses from what will result in inspiration?
The ventral respiratory group (VGR), a network of neurons that extends in the ventral brain stem from the spinal cord to the pons-medulla junction, appears to be the rhythm-generating and integrative center of respiration.
What are the respiratory areas?
The components of the respiratory areas are widely scattered throughout the pons and medulla oblongata. Two parts of the respiratory areas are of special interest: the respiratory center of the medulla and the respiratory group of the pons.
What is a group of neurons with little to no myelin is known as?
A group of neurons with little to no myelin is known as unmyelinated neurons. These neurons transmit signals more slowly compared to myelinated neurons, which have a protective myelin sheath covering their axons.
When a group of neurons that carry impulses from the CNS to effectors are clustered together they are called what?
Motor neurons.
Where is the pneumotaxic center and the apneustic center located?
The pneumotaxic center is located in the upper pons of the brainstem, specifically in the pontine respiratory group. The apneustic center is located in the lower pons of the brainstem. Together, these centers help regulate the rhythmic breathing pattern.
