What is autonomic nervous system?

What is autonomic nervous system?
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1 Answer

Answer :

Autonomic nervous system consists of a set of peripheral nerves that connect the organs like heart, lungs and digestive tract and other internal organs.
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Related questions

Mention the two parts of the autonomic nervous system.

Description : Mention the two parts of the autonomic nervous system.

Last Answer : The two parts of the autonomic nervous system are: a) Sympathetic system b) para sympathetic system

State the function of autonomic nervous system.

Description : State the function of autonomic nervous system.

Last Answer : The function of autonomic nervous system is to regulate the involuntary actions of the body

What is peripheral nervous system?

Description : What is peripheral nervous system?

Last Answer : Peripheral nervous system consists of the nerves between the brain, spinal cord and various organs. It includes 12 pairs of cranial nerves and 31 pairs of spinal nerves.

Briefly explain the Central Nervous System.

Description : Briefly explain the Central Nervous System.

Last Answer : a) The components of the central nervous system are brain and spinal cord. b) The brain and the spinal cord are covered by three membranes namely outer Duramater, middle Arachnoid and the inner ... is filled by the cerebro-spinal fluid. This fluid circulates between the brain and the spinal cord.

Name the three divisions of the human nervous system.

Description : Name the three divisions of the human nervous system.

Last Answer : The human nervous system consists of three components namely a) Central Nervous System (CNS) b) Peripheral Nervous System (PNS) c) Autonomic Nervous System (ANS)

Name the three divisions of the nervous system.

Description : Name the three divisions of the nervous system.

Last Answer : Nervous system consists of receptors, effectors and conductors.

What is the importance of nervous system?

Description : What is the importance of nervous system?

Last Answer : a) Nervous system controls and coordinates various activities and functions of different organs and organ systems in the body. b) It regulates both voluntary and involuntary activities of the body. c) It enables ... us to think, reason and remember. e) It controls all the reflex actions of the body.

The autonomic nervous system innervates all of these except? A. Cardiac muscles B. Skeletal muscles (Answer) C. Smooth muscles D. none

Description : The autonomic nervous system innervates all of these except? A. Cardiac muscles B. Skeletal muscles (Answer) C. Smooth muscles D. none

Last Answer : B. Skeletal muscles (Answer)

unlike the somatic nervous system, the autonomic nervous system -General Knowledge

Description : unlike the somatic nervous system, the autonomic nervous system -General Knowledge

Last Answer : The given statement is true.

Components of autonomic nervous system (ANS)? -Biology

Description : Components of autonomic nervous system (ANS)? -Biology

Last Answer : answer:

What is the autonomic nervous system ?

Description : What is the autonomic nervous system ?

Last Answer : : The organs over which we have no control are controlled and controlled by the autonomic nervous system . The internal organs of the body , such as the heart , intestines , stomach ... effect on the functioning of these systems, they perform their functions much more independently and individually.

The autonomic nervous system is also known as (a) Visceral (b) Vegetative (c) Involuntary nervous system (d) All of the above

Description : The autonomic nervous system is also known as (a) Visceral (b) Vegetative (c) Involuntary nervous system (d) All of the above

Last Answer : Ans: C

Hypersensitivity refers to undesirable reactions produced by a) circulatory system b) Respiratory system c) Immune System d) Endocrine system e) Autonomic nervous system

Description : Hypersensitivity refers to undesirable reactions produced by a) circulatory system b) Respiratory system c) Immune System d) Endocrine system e) Autonomic nervous system

Last Answer : Ans: C

The following are true about renal circulation: a. it accounts for 25% of the cardiac outputb. it is regulated predominantly by the autonomic nervous system c. in a normal 70 kg man, renal blood flow is about 1200ml/min d. macula densa cells are found in the efferent arteriolar wall

Description : The following are true about renal circulation: a. it accounts for 25% of the cardiac output b. it is regulated predominantly by the autonomic nervous system c. in a normal 70 kg man, renal blood flow is about 1200ml/min d. macula densa cells are found in the efferent arteriolar wall

Last Answer : macula densa cells are found in the efferent arteriolar wall

True statements about cerebral blood flow: a. it is controlled mainly by the autonomic nervous system b. cerebral arterioles constricts when the blood pressure is raised c. it is constant in the blood pressure range of 50 to 150 mm Hg systolic d. hypocapnia increases the cerebral blood flow

Description : True statements about cerebral blood flow: a. it is controlled mainly by the autonomic nervous system b. cerebral arterioles constricts when the blood pressure is raised c. it is constant in the blood pressure range of 50 to 150 mm Hg systolic d. hypocapnia increases the cerebral blood flow

Last Answer : it is constant in the blood pressure range of 50 to 150 mm Hg systolic

The following are true about the autonomic nervous system: a. the preganglionic fibres are mainly myelinated, slow conducting B fibres b. the postganglionic fibres are mainly unmyelinated C fibres c. all preganglionic neurones are cholinergic neurons d. all above

Description : The following are true about the autonomic nervous system: a. the preganglionic fibres are mainly myelinated, slow conducting B fibres b. the postganglionic fibres are mainly unmyelinated C fibres c. all preganglionic neurones are cholinergic neurons d. all above

Last Answer : all above

The following are true about the autonomic nervous system: a. the postganglionic neurones are largely unmyelinated b. all preganglionic neurones are cholinergic c. the preganglionic neurones of the sympathetic nervous system are shorter than the parasympathetic nervous system d. the parasympathetic outflow is only found in the cranial nerves

Description : The following are true about the autonomic nervous system: a. the postganglionic neurones are largely unmyelinated b. all preganglionic neurones are cholinergic c. the preganglionic neurones of ... parasympathetic nervous system d. the parasympathetic outflow is only found in the cranial nerves

Last Answer : the postganglionic neurones are largely unmyelinated

With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres are usually longer than preganglionic parasympathetic fibres c. acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Description : With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres ... the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

The major integrator of autonomic nervous system is a. cerebrum b. cerebellum c. hypothalamus d. all

Description : The major integrator of autonomic nervous system is a. cerebrum b. cerebellum c. hypothalamus d. all

Last Answer : hypothalamus

Give an example to show that sympathetic and para-sympathetic system work opposite in function.

Description : Give an example to show that sympathetic and para-sympathetic system work opposite in function.

Last Answer : Sympathetic system stimulates the pupil in the eye to dilate (open) where as parasympathetic system stimulates it to constrict (close).

Mention the two methods of co-ordination of organ system in multi-cellular organisms.

Description : Mention the two methods of co-ordination of organ system in multi-cellular organisms.

Last Answer : Co-ordination of various organ systems in multi-cellular organisms is brought about in two ways a) Control by nervous system b) Control by endocrine system

What structures enable the skin to function as a sense organ?

Description : What structures enable the skin to function as a sense organ?

Last Answer : Sensory receptors are distributed all over the skin which perceive the stimuli. Touch receptors are located near the surface of the skin. Pressure receptors and pain receptors are located deep inside the skin.

After relay race, Runner-A pours glucose powder into his mouth. Runner-B tastes the glucose slowly with the tip of his tongue. Whom do you think, experiences the sweetness most? Why?

Description : After relay race, Runner-A pours glucose powder into his mouth. Runner-B tastes the glucose slowly with the tip of his tongue. Whom do you think, experiences the sweetness most? Why?

Last Answer : Runner-B experiences most sweetness because the taste buds of sweetness are distributed in the front.

Briefly explain the mechanism of taste.

Description : Briefly explain the mechanism of taste.

Last Answer : Food that is eaten mixes with saliva and enters the pores of the taste buds. They chemically stimulate the sensory cells. These cells convert the chemical stimuli into electrical impulses. The electric impulses pass to the brain through the sensory neuron. The brain interprets the impulses as taste.

Explain the structure of tongue.

Description : Explain the structure of tongue.

Last Answer : The tongue is covered by a mucus membrane. It has numerous tiny sensory cells called taste buds. Taste buds are composed of a cluster of cells with receptors lying in a small depression on the surface.

Explain how a pea or a button which has got into the nasal cavity be removed. OR What is the first aid to be provided to a person who got a pea or a button into the nasal cavity accidentally?

Description : Explain how a pea or a button which has got into the nasal cavity be removed. OR What is the first aid to be provided to a person who got a pea or a button into the nasal cavity accidentally?

Last Answer : If a pea or a button gets into the nasal cavity accidentally, give a pinch of snuff to the person. It causes violent sneezing and the foreign body will be thrown out. Visit a doctor if the above method does not work.

Why does food appear relatively tasteless when one has cold or running nose?

Description : Why does food appear relatively tasteless when one has cold or running nose?

Last Answer : When you put food in your mouth, odour molecules from that food travel through the enter nose and stimulate the olfactory receptor cells at the top of your nasal cavity, If mucus in your ... receptor cells. Thus, the brain receives no signal identifying the odour Hence food eaten appears tasteless.

Briefly explain the sensation of smell.

Description : Briefly explain the sensation of smell.

Last Answer : The molecules from the substance escapes and are carried by the inhaled air. On reaching the olfactory epithelium, they get dissolved in the mucus and stimulate the receptors. The stimulations are ... olfactory nerve to the brain. Here it interprets the impulses and gives the sensation of smell.

Briefly explain the structure of the human nose.

Description : Briefly explain the structure of the human nose.

Last Answer : The nasal cavity is lined by olfactory epithelium. The upper part of the nasal cavity has receptors of smell. The receptors are connected with the olfactory nerve. The olfactory nerve carries the impulses to the brain.

Give reason: a) A strong blow on the ears is very dangerous.b) When there is severe throat infection we normally get ear pain.

Description : Give reason: a) A strong blow on the ears is very dangerous.b) When there is severe throat infection we normally get ear pain.

Last Answer : a) A strong blow on the ears is very dangerous.As it would damage the semicircular canals and cochlea. This would lead to leakage of of fluids and sometimes even death, with ear ... pain. Throat infections affect the middle ear because eustachian tubes connect the middle ears and the throat.

What are the cares to be taken of the ear?

Description : What are the cares to be taken of the ear?

Last Answer : a) Hardened wax from the auditory canal should not be removed using sharp objects as they damage the eardrum. b) Loud noise must be avoided as they damage the eardrum. c) Visit a doctor if ... hearing. e) Small insects entering the ear can be removed by filling the external ear with salt water.

What are these? State their function a) Pinna

Description : What are these? State their function a) Pinna

Last Answer : a) Pinna: It is a cartilagenous organ covered with skin. It collects sound waves and directs them into the auditory canal. b) Tympanum: It is an obliquely placed membrane at the end of ... called Cochlea. It also contains a delicate structure called organ of corti which forms the auditory nerve.

How is the ear protected?

Description : How is the ear protected?

Last Answer : a) The auditory canal has hairs at its opening to prevent tiny particles from entering the ear. b) The wax secreting cells on the inner lining of the auditory canal produces wax that traps small organisms and dust.

a) What is organ of corti? b) Name the liquids that are present in inner ear.

Description : a) What is organ of corti? b) Name the liquids that are present in inner ear.

Last Answer : a) Cochlea has delicate structures called organ of corti, which have receptors that join to form the auditory nerve. b) The entire ear is filled with a fluid called endolymph. The inner ear is surrounded by a fluid called perilymph.

Describe the structure of the human ear.

Description : Describe the structure of the human ear.

Last Answer : a) The human ear is divided into three parts namely the outer ear, the middle ear and the inner ear. b) The outer ear consists of pinna, auditory canal and the tympanum. c) Pinna is ... Cochlea has delicate structures called organ of corti, which have receptors that join to form the auditory nerve.

What are the precautions to be taken regarding the care of the eyes?

Description : What are the precautions to be taken regarding the care of the eyes?

Last Answer : a) Do not strain your eyes by reading in dim light b) Avoid reading books during journey on roads. c) Avoid very bright light. d) Avoid watching television from a short distance. e) Avoid working on ... with cold clean water atleast twice a day. g) Consult an eye specialist in case of any problem.

A person is not able to identify the colours in the traffic signal. What disease is he suffering from?

Description : A person is not able to identify the colours in the traffic signal. What disease is he suffering from?

Last Answer : The disease is called colour blindness. It is a genetic disorder in which a person is unable to differentiate colours.

What is Glaucoma?

Description : What is Glaucoma?

Last Answer : Glaucoma is a disorder of the eye. The eyeball of a person suffering from glaucoma gradually hardens. The person sees flashes of light and coloured rings around the objects. The vision gradually decreases and leads to blindness. It occurs in persons above forty years of age.

What is astigmatism? How can it be corrected?

Description : What is astigmatism? How can it be corrected?

Last Answer : Astigmatism is a defect in which, a person looking at horizontal or vertical lines appears distorted. It is caused due to the unevenness of the crystalline lens. It can be corrected by using cylindrical lenses.

A person is advised vitrectomy surgery. Which gland which is not functioning properly?

Description : A person is advised vitrectomy surgery. Which gland which is not functioning properly?

Last Answer : Islets of Langerhans.

What is vitrectomy?

Description : What is vitrectomy?

Last Answer : Vitrectomy is a major surgical procedure to treat diabetic retinopathy. In this procedure the blood that has leaked into the vitreous humour is removed and vision is restored.

What is diabetic retinopathy? How can it be prevented?

Description : What is diabetic retinopathy? How can it be prevented?

Last Answer : Diabetic retinopathy is a disorder of the eye that occurs in people suffering from diabetes. After many years of diabetes, the blood vessels of the retina may leak, close-up or begin to grow. ... enter the vitreous humour making it opaque. It can be prevented by early treatment with laser beam.

What is cataract?

Description : What is cataract?

Last Answer : Cataract is a disorder of the eye in which the lens of the eye becomes cloudy, causing partial or total blindness.

What is Presbyopia?

Description : What is Presbyopia?

Last Answer : Presbyopia is a defect in which a person can see neither near-by nor far off objects clearly. It occurs at old age due to the loss of elasticity of eye lens.

Give reason: A convex lens is used to correct hypermetropia.

Description : Give reason: A convex lens is used to correct hypermetropia.

Last Answer : In a hypermetropic eye, light is focused behind the retina. A convex lens will force it to form on the retina. Hence a convex lens is used to correct hypermetropia.

What is hyper-metropia? How can it be corrected?

Description : What is hyper-metropia? How can it be corrected?

Last Answer : Hyper-metropia is a defect in which a person can see far off objects clearly but cannot see the near-by objects clearly. It is caused due to the flattening of eye ball. It can be corrected by using convex lens.

Give reason: A concave lens is used to correct myopia.

Description : Give reason: A concave lens is used to correct myopia.

Last Answer : In a myopic eye light falls too short from the retina. A concave lens forces light to fall on the retina. Hence concave lens is used to correct myopia.

What is myopia? How can it be corrected?

Description : What is myopia? How can it be corrected?

Last Answer : Myopia is a defect of the eye in which the person can see near by objects but cannot see far off objects clearly. It is caused due to the bulging of the eye ball or elongation of the eye ball. It can be corrected by using concave lens.

Mention the common defects of the eye.

Description : Mention the common defects of the eye.

Last Answer : a) Myopic or short sight b) Hyper-metropia or long sight c) Presbyopia d) Nyctolopia or night blindness e) Cataract

Give reason: a) When we suddenly enter a cinema hall, we will not be able to see any objects.b) There is no image formation at blind spot.

Description : Give reason: a) When we suddenly enter a cinema hall, we will not be able to see any objects.b) There is no image formation at blind spot.

Last Answer : a) When we suddenly enter a cinema hall, we will not be able to see any objects. Our eyes take some time to adjust to the light in the surroundings. When we are in bright area pupil constricts. ... region where the optic nerve exits the eye ball. There are no sensory cells. Hence no image is formed.