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Nervous System
This category is for questions about the mechanical and chemical process of reactions to internal and external stimuli, ranging from the brain down to the spinal cord, and all nerves, cells and tissues in between.
3,047 Questions
What is the difference in the origins of the nerves in the sympathetic and parasympathetic system?
There is no difference in the origins of the nerves in the sympathetic and parasympathetic nervous system. The differences come from the lengths and the neurotransmitter released. The parasympathetic nervous system is a two nerve system. The first nerve is long and releases acetyl choline. The second nerve is short and also releases acetyl choline. The sympathetic nervous system is also two nerves, the first being short and releasing acetyl choline. The second is long and releases norepinephrine.
Hope this helped!
What cranial nerve carries smell impulses to the brain?
The olfactory nerve, also known as the first cranial nerve, transports impulses for sense of smell to the brain. The olfactory nerve is capable of regeneration.
Do white people have melinin in their central nervous system?
Every human being has melanin.
Human brains do not differ very much country to country.
They do however differ person to person. Einstein's brain and the brains of savants have some noted differences.
How does the nervous system affect the excrectory system?
The kidneys are controlled by signals from the brain.
The brain sends hormones to the kidneys.
What are the major components in the Autonomic nervous system?
The basic components of the ANS are the sympathetic and parasympathetic branches. The sympathetic branch, or SNS, is responsible for the flight-or-fight response and the parasympathetic, or PNS, is called the rest-and-digest system.
parasympathethic and sympathetic nervous system
The structure that brings about response in the nervous system?
The effector such as a muscle or gland brings about response in the nervous system.
chronic
How is the reflex response different from the sensory response?
The stimulus is what triggers the reflex response.
How does the endocrine system compare to the nervous system in regulating homeostasis?
Nervous System mainly the hypothalamus secretes different relasing and inhibiting hormones that controls the secretions of various hormones from anterior pituitary as well as secretes two important neuro-hormones viz. oxytosin and vasopressin. thus nervous system along with endocrine system works together to maintain homeostasis.
Does the nervous system control your blinking and sneezing?
The medulla oblongata is responsible for regulating several basic functions of the autonomic nervous system, including respiration, cardiac function, vasodilation, and reflexes like vomiting, coughing, sneezing, and swallowing.
What are the quick protective reactions that occur within your nervous system?
These are called reflexes. When the doctor taps the tendon below your knee your leg extends (lifts), this is a reflex.
What is the absolute minimum number of neurons that can be involved in a reflex?
A minimum of 3 neurons.
How eating a hamburger involve both the somatic and autonomic nervous systems?
Eating a hamburger engages the somatic nervous system when you use your skeletal muscles to grasp the burger, bring it to your mouth, and chew. At the same time, the autonomic nervous system is activated during digestion, regulating involuntary processes such as salivation, gastric secretion, and peristalsis in the digestive tract. This coordination ensures that not only can you consume the food, but your body can also effectively process it afterward. Thus, both systems work together to facilitate the entire eating and digestion experience.
List of different glands of the body?
An endocrine gland is a ductless gland that produces and secretes hormones into the blood or lymph nodes, affecting specific target tissues throughout the body. Endocrine glands include the pituitary, pineal, hypothalamus, thymus, thyroid, parathyroid, adrenal cortex, adrenal medulla, islets of Langerhans and gonads ie testes and ovaries.
What is the major area where the nervous system and endocrine system interact?
That would be the hypothalamus, the gland of homeostasis.
What arouses the body and mobilizes its energy in a stressful situations?
Sympathetic nervous system arouses the body and mobilizes it's energy in stressful situations. This nervous system is part of three systems that make up the autonomic system.
How does deflex affect the nervous system and help sleep?
deflex affects the nervous system by not allowing it to work properly
What is the function of sensory nerve endings?
The sensory nerve endings are specialized neurones that are stimulated to fire action potntiels based on chemical factors, photons, heat etc depending on their location and type.
The sural nerve (short saphenous nerve), formed by the junction of the medial sural cutaneous with the peroneal anastomotic branch of the lateral sural cutaneous nerve, passes downward near the lateral margin of the tendo calcaneus, lying close to the small saphenous vein, to the interval between the lateral malleolus and the calcaneus. It runs forward below the lateral malleolus, and is continued as the lateral dorsal cutaneous nerve along the lateral side of the foot and little toe (via a dorsal digital nerve), communicating on the dorsum of the foot with the intermediate dorsal cutaneous nerve, a branch of the superficial peroneal
It's the calf.
