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a pacemaker that initiated each contraction of a heart beat
"Autorhythmic cells: cardiac or smooth muscle fibers that are self-excitable; act as the heart's pacemaker and conduct the pacing impulse through the conduction system of the heart; self-excitable neurons in central nervous system,as in the inspiratory area of the brain stem." -Principles of Anotomy and physiology, TORTORA, DERRICKSON, 11th edition, Wiley & sons, Inc. (c) 2006 by bio. Sci. textbooks, Inc. and Bryan Derrickson
What else can I help you with?
What is the rhythmicity center of the brain?
Medulla Oblongata
How can the word circadian be used in a sentence?
working on my circadian rhythmicity
What is the rhythmicity heart?
The heart is the only organ containing cardiac muscle
The rhythmicity center a sort of pacemaker that sets the rhythm of automatic breathing is located in the?
medulla oblongata, in the brain stem.
What has the author Christopher John McCabe written?
Christopher John McCabe has written: 'Genetic aspects of rhythmicity in Drosophila melanogaster'
What are the Seven special properties of cardiac muscle?
- rhythmicity : capability of rhythmic self-excitation therefore no need for external control -conductivity: conduction of action potential along specialised muscle cells. -excitability: ability of muscle fibers to get exited . -contractility; ability of cardiac muscle to contract . It also has a long refractory period meaning it cant tetanus
What has the author Kenneth Clarke Fisher written?
Kenneth Clarke Fisher has written: 'Heart rhythmicity of embryo fish. 1. The effect of temperature on te hear rate of trout embryos'
How is rhythmicity of breathing set?
The rhythmicity of breathing is primarily controlled by the brainstem, particularly the medulla oblongata and pons. Neurons in these areas generate rhythmic patterns of activity that regulate the contraction of respiratory muscles. Additionally, sensory input from chemoreceptors and mechanoreceptors helps modulate the rhythm based on the body’s metabolic needs, such as changes in carbon dioxide and oxygen levels. This complex interplay ensures that breathing remains automatic yet adaptable to various physiological demands.
Where is th respiratory rhythmicity center located?
there is a specific group of cells found in the medula (part of the brain stem) which regulate the rhythm of breathing, hence the name (of this cellular formation) the Medulary Rhythmicity Center.
The term means the cells set their own rhythm?
The term referring to cells setting their own rhythm is called "endogenous rhythmicity." This phenomenon describes the ability of cells to generate and maintain their own inherent biological rhythm, such as the circadian rhythm in organisms. This internal clock allows cells to coordinate various physiological processes independently of external cues.
What part of the respiratory center is responsible for maintaining breathing patterns?
The respiratory center, located in the brainstem, primarily consists of the medulla oblongata and pons. The medulla oblongata contains the rhythmicity center, which generates the basic rhythm of breathing, while the pons modulates this rhythm by fine-tuning the transition between inhalation and exhalation. Together, these areas help maintain consistent breathing patterns in response to various physiological demands.
What sections of the brain that contain respiratory centers and set the breathing rate?
The primary respiratory centers are located in the brainstem, specifically in the pons and medulla oblongata. The medulla oblongata houses the respiratory rhythmicity centers, which control the basic rhythm of breathing, while the pons contains the pneumotaxic and apneustic centers that help regulate the rate and depth of respiration. Together, these areas coordinate the automatic process of breathing in response to various physiological needs.
