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Iris muscles!
The circular muscles contract to reduce the size of the pupil in bright light. Radial muscle fibres contract to widen the pupil in places of low light intensity. The contraction and relaxation of circular and radial muscle fibres in the iris are antagonistic, and an example of cerebral reflex.
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What does a indicator relay do?
An indicator relay, also known as a flasher relay, controls the timing and rate at which turn signal lights on a vehicle flash. It is an essential component in the turn signal system, providing the necessary signal to the bulbs to blink in a specific pattern to indicate a turn or lane change.
What part of the brain controls heart rate blood pressure and digestive system?
The autonomic nervous system, specifically the medulla oblongata, within the brainstem, controls essential functions such as heart rate, blood pressure, and digestion. This area regulates these functions automatically, without conscious effort.
What does the autonomic nervous system direct?
The autonomic nervous system is the system by which the body controls the processes required to survive that happen without the body having to think about them. This includes processes such as breathing, digestion, heart rate and salivation.
What are the two types of peripheral nervous system?
The two types of peripheral nervous system are the somatic nervous system, which controls voluntary movements, and the autonomic nervous system, which regulates involuntary bodily functions like heart rate and digestion.
The peripheral nerbous system is divided into what two subdivisions?
The peripheral nervous system is divided into the somatic nervous system, which controls voluntary movements, and the autonomic nervous system, which regulates involuntary bodily functions like heart rate and digestion.
What body system controls heart rate and breath rate?
The nervous system controls heart and respiratory rates.
Which body system controls the rate at which the circulatory and respiratory work?
The nervous system controls the rate of the heartbeat and respiration.
What controls the breathing rate?
your respiratory system/lungs
What organ of the endocrine system controls cell metabolic rate?
thyroid
Breathing is a function controlled by the autonomic nervous system?
The nervous system controls breathing rate.
What does a indicator relay do?
An indicator relay, also known as a flasher relay, controls the timing and rate at which turn signal lights on a vehicle flash. It is an essential component in the turn signal system, providing the necessary signal to the bulbs to blink in a specific pattern to indicate a turn or lane change.
How do the heart control your heart rate when you exercise?
your heart gets controls by your nervous system
What system controls the body's unconscious activities?
The autonomic nervous system controls the body's unconscious activities, such as heart rate, digestion, and breathing. It is responsible for regulating these functions to maintain homeostasis in the body without conscious effort.
What is the Ethernet activity LED blink rate?
Different manufacturers use different blink rates. It is the choice of the designer. There isn't any standard blink rate. Data packets flowing on the cable move so quickly that if a blink rate was not used, the LED would flash too quickly, and it would be hard to see it working.
What does autonomic nervous system control?
It controls involuntary actions such as heart rate, digestion, respiration rate, salivation, perspiration, sexual arousal, and urination.
What part of the brain controls heart rate blood pressure and digestive system?
The autonomic nervous system, specifically the medulla oblongata, within the brainstem, controls essential functions such as heart rate, blood pressure, and digestion. This area regulates these functions automatically, without conscious effort.
What body system helps control the actions of when your heart begins to pound and your breathing becomes rapid?
The nervous system controls heart rate and respiratory rate. It may be influenced by the endocrine system as well. A rapid heart and breathing rate are typical results of activation of the sympathetic nervous system.
