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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
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.
How can we take care of our nervous system?
Drinking alcohol can slow down sending of messages, which leads to different ways on how your body acts.
How does the nervous system aid in the survival of so many organisms?
The are a couple of evolutionary advantages of an organism developing a central nervous system. The main evolutionary advantage of an organism developing a central nervous system is the brain.
Where does ether exert its effects on nerve activity?
Ether will impair the function of the nerves. It does not leave any permanent damage, however. Ether anesthetic may cause side effects such as nausea.
Parkinson's disease is a degenerative central nervous system disorder with progressive loss of control over movement.
How many cranial nerves do cats have?
The number of cranial nerves that a cat have is 12. The cranial nerves are mostly located at the cats brain.
Where does processing of information occur in the nervous system?
only when your organs rise up and your brain is put under stress.
The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system (ANS) which innervates (supplies) smooth muscle, glands, and cardiac muscle.
- The sympathetic (thoracolumbar) nervous system deals with the fight-or-flight response. It gets the body ready to deal with emergency situations by increasing heart rate, dilating the pupils and airways, decreasing digestive tract motility, and stimulating adrenal glands and sweat glands.
- The parasympathetic (craniosacral) nervous system restores the body to homeostasis after a stressful or traumatic event/situation. It stimulates the body to decrease heart rate, increase digestive tract motility, constrict pupils, produce tears and saliva, and stimulate thoracic and abdominal viscera.
What is the structure of the autonomic nervous system?
The autonomic nervous system is a division of the peripheral nervous system, which is a subdivision on the nervous system as a whole. which also included the central nervous system.
The autonomic division is responsible for involuntary processes in the body, such as maintaining blood pressure, heart rate, respiration, digestion, and other metabolic processes that contribute to homeostasis.
The prime ruler of the autonomic nervous system (ANS) is the hypothalamus which is located above the pituitary gland. The hypothalamus is also known as the Master glad
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How many spinal disks are there in human body?
"http://wiki.answers.com/Q/How_many_spinal_disks_are_there_in_human_body
What bone protects the major organ of the nervous system?
The cranium (skull) is the collection of bones that protects the brain, which is the major organ of the nervous system.
What is the human body's automatic response to the environment?
An automatic response to the environment is a reflex
Where are the nuclei of the cranial nerves V VI and VII found?
All cells in the body have similar structures. All of them have a cellular semipermeable membrane, cytoplasm, and organelles. Most cells, and all nerve cells, have nuclei, which is the plural of nucleus. All nerve cells, or neurons have one single nucleus, including cranial nerves. The job of the nucleus is to be the control center, and in the case of neurons, they decide when an impulse should be sent down along its axon.
What is the function of spinal nerves- afferent?
They carry nerve impulses from your sensory organs, like your eyes, to your brain, or your central nervous system (CNS). When your eyes see something shiny on the ground, your afferent nerves tell your brain what your eyes see. In contrast, efferent nerves carry nerve impulses from your brain to parts of your body. So, when you see something shiny on the ground, your brain tells you to pick it up and look at it. Efferent = "Exiting", the nerves impulses are exiting your brain. Afferent = the opposite
