What As they extend from the retina to the brain the nerve fibers?

What As they extend from the retina to the brain the nerve fibers?
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which type of fibers are found in the hypoglossal nerve (cn xii)? -General Knowledge

Description : which type of fibers are found in the hypoglossal nerve (cn xii)? -General Knowledge

Last Answer : motor to the muscles of the tongue.

The ciliary ganglion: a. is found between the optic nerve and the medial rectus b. contains sympathetic nerve that supplies the sphincter pupillae c. is a parasympathetic relay ganglion for fibers from the Edinger-Westphal nucleus d. contains sensory nerve e. has a motor nerve that goes to the inferior oblique

Description : The ciliary ganglion: a. is found between the optic nerve and the medial rectus b. contains sympathetic nerve that supplies the sphincter pupillae c. is a parasympathetic relay ganglion for fibers from ... nucleus d. contains sensory nerve e. has a motor nerve that goes to the inferior oblique

Last Answer : is a parasympathetic relay ganglion for fibers from the Edinger-Westphal nucleus

Action potential in nerve fibers differ in a. magnitude b. duration c. both d. none of them

Description : Action potential in nerve fibers differ in a. magnitude b. duration c. both d. none of them

Last Answer : both

Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting nerve damage. The absence of muscle tone suggesting nerve damage is referred to as paralysis. c) involuntary twitch of muscle fibers. Involuntary twitch of muscle fibers is referred to as fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Description : Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting ... fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Last Answer : a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias.

Cornea is supplied by nerve fibers derived from: a. Trochlear nerve b. Optic nerve c. Trigeminal nerve d. Oculomotor nerve

Description : Cornea is supplied by nerve fibers derived from: a. Trochlear nerve b. Optic nerve c. Trigeminal nerve d. Oculomotor nerve

Last Answer : ANSWER: C  

I have hypotony and a damaged retina, also some optic nerve damage, although I had a little sight until the hypotony. Any hope for stem cell treatment?

Description : I have hypotony and a damaged retina, also some optic nerve damage, although I had a little sight until the hypotony. Any hope for stem cell treatment?

Last Answer : stem cell treatment as of the moment is a conservative issue whether to continue allowing it or totally ban it. however the answer is yes, almost anything is possible through stem cell research, believe it or not the stem cell treatment could even be a way of stopping aging, all the more hypotony.

In Eye donation, which part of the eye used? A. Retina B. Iris C. Cornea (Answer) D. Optic nerve

Description : In Eye donation, which part of the eye used? A. Retina B. Iris C. Cornea (Answer) D. Optic nerve

Last Answer : C. Cornea (Answer)

The junction of optic nerve and retina is insensitive to light and no image is formed here , it is known as ______. a)blind spot b)yellow spot c) fovea d)pupil

Description : The junction of optic nerve and retina is insensitive to light and no image is formed here , it is known as ______. a)blind spot b)yellow spot c) fovea d)pupil

Last Answer : a)blind spot

Homonymous hemianopia is the result of a lesion in: a. Optic chiasma b. Retina c. optic tract d. Optic nerve

Description : Homonymous hemianopia is the result of a lesion in: a. Optic chiasma b. Retina c. optic tract d. Optic nerve

Last Answer : ANSWER: C  

Homonymous hemianopia is due to lesion at: a. Optic tract b. Optic nerve c. Optic chiasma d. Retina e. Occipital cortex

Description : Homonymous hemianopia is due to lesion at: a. Optic tract b. Optic nerve c. Optic chiasma d. Retina e. Occipital cortex

Last Answer : ANSWER: A

In retinal detachment, fluid accumulates between: a. Outer plexiform layer and inner nuclear layer. b. Neurosensory retina and layer of retinal pigment epithelium c. Nerve fiber layer and rest of retina. d. Retinal pigment epithelium and Bruch’s membrane.

Description : In retinal detachment, fluid accumulates between: a. Outer plexiform layer and inner nuclear layer. b. Neurosensory retina and layer of retinal pigment epithelium c. Nerve fiber layer and rest of retina. d. Retinal pigment epithelium and Bruch’s membrane.  

Last Answer : ANSWER: B 

Which of the following statement(s) is/are true concerning the cell plasma membrane? a. The plasma membrane is composed of amphipathic molecules b. The hydrophobic core of the lipid bilayer of the cell membrane contains specialized transport proteins which maintain the intracellular ionic milieu different from the extracellular fluid c. Plasma membrane proteins extend externally and bear phospholipid moieties which contribute to the cell coat d. The membrane proteins of nerve cells are highly voltage-dependent

Description : Which of the following statement(s) is/are true concerning the cell plasma membrane? a. The plasma membrane is composed of amphipathic molecules b. The hydrophobic core of the lipid bilayer of the ... contribute to the cell coat d. The membrane proteins of nerve cells are highly voltage-dependent

Last Answer : Answer: a, b, d The plasma membrane defines the boundary of the cell and serves to contain and concentrate enzymes and other macromolecule constituents. The plasma membrane is ... and bear carbohydrate moieties primarily as oligosaccharide chains that contribute to the cell coat or glycocalyx

Which nerve is assessed when the nurse asks the patient to dorsiflex the ankle and extend the toes? a) Peroneal The motor function of the peroneal nerve is assessed by asking the patient to dorsiflex the ankle and extend the toes while the sensory function is assessed by pricking the skin between the great and center toes. b) Radial The radial nerve is assessed by asking the patient to stretch out the thumb, then the wrist, and then the fingers at the metacarpal joints. c) Median The median nerve is assessed by asking the patient to touch the thumb to the little finger. d) Ulnar Asking the patient to spread all fingers allows the nurse to assess motor function affected by ulnar innervation.

Description : Which nerve is assessed when the nurse asks the patient to dorsiflex the ankle and extend the toes? a) Peroneal The motor function of the peroneal nerve is assessed by asking the patient to ... the patient to spread all fingers allows the nurse to assess motor function affected by ulnar innervation.

Last Answer : a) Peroneal The motor function of the peroneal nerve is assessed by asking the patient to dorsiflex the ankle and extend the toes while the sensory function is assessed by pricking the skin between the great and center toes.

Which nerve is assessed when the nurse asks the patient to spread all fingers? a) Ulnar Asking the patient to spread all fingers allows the nurse to assess motor function affected by ulnar innervation while pricking the fat pad at the top of the small finger allows assessment of the sensory function affected by the ulnar nerve. b) Peroneal The peroneal nerve is assessed by asking the patient to dorsiflex the ankle and extend the toes. c) Radial The radial nerve is assessed by asking the patient to stretch out the thumb, then the wrist, and then the fingers at the metacarpal joints. d) Median The median nerve is assessed by asking the patient to touch the thumb to the little finger.

Description : Which nerve is assessed when the nurse asks the patient to spread all fingers? a) Ulnar Asking the patient to spread all fingers allows the nurse to assess motor function affected by ulnar innervation ... The median nerve is assessed by asking the patient to touch the thumb to the little finger.

Last Answer : a) Ulnar Asking the patient to spread all fingers allows the nurse to assess motor function affected by ulnar innervation while pricking the fat pad at the top of the small finger allows assessment of the sensory function affected by the ulnar nerve.

What are purkinjie fibers and in what part of the brain are they found?

Description : What are purkinjie fibers and in what part of the brain are they found?

Last Answer : Need answer

Which of the following structures or regions is incorrectly paired with its functions? (a) Medulla : Controls respiration oblongata and cardiovascular reflexes (b) Limbic : Consists of fibre tracts system that interconnect different regions of brain controls movement (c) Hypothalamus : Production of releasing hormones and regulation of temperature, hunger and thirst (d) Corpus callosum : Band of fibers connecting left and right cerebral hemispheres

Description : Which of the following structures or regions is incorrectly paired with its functions? (a) Medulla : Controls respiration oblongata and cardiovascular reflexes (b) Limbic : Consists of fibre tracts ... thirst (d) Corpus callosum : Band of fibers connecting left and right cerebral hemispheres

Last Answer : (b) Limbic : Consists of fibre tracts system that interconnect different regions of brain controls movement

Which of the following structures or regions is incorrectly paired with its function ? (1) Medulla oblongata : controls respiration and cardiovascular reflexes. (2) Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement. (3) Hypothalamus : production of releasing hormones and regulation of temperature, hunger and thirst. (4) Corpus callosum : band of fibers connecting left and right cerebral hemispheres.

Description : Which of the following structures or regions is incorrectly paired with its function ? (1) Medulla oblongata : controls respiration and cardiovascular reflexes. (2) Limbic system : consists of fibre ... and thirst. (4) Corpus callosum : band of fibers connecting left and right cerebral hemispheres.

Last Answer : (2) Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement.

Retina,eye lens brain and skin are formed from

Description : Retina,eye lens brain and skin are formed from

Last Answer : Retina,eye lens brain and skin are formed from A. Mesoderm-skeleton B. Ectoderm C. Endoderm D. Both ectoderm and endoderm.

The following are true about ocular circulation: a. only 4% of the total blood supply to the eye goes to the retina b. the choroidal blood flow in normal people is ten times that of the grey mater of the brain c. autoregulation occurs in both retinal and choroidal circulation d. a PaCO2 rise of 1 mm Hg induces a 3% rise in retinal blood flow

Description : The following are true about ocular circulation: a. only 4% of the total blood supply to the eye goes to the retina b. the choroidal blood flow in normal people is ten times that of the grey mater ... and choroidal circulation d. a PaCO2 rise of 1 mm Hg induces a 3% rise in retinal blood flow

Last Answer : a PaCO2 rise of 1 mm Hg induces a 3% rise in retinal blood flow

How do signals from nerve endings retain information about their origins as they travel to the brain?

Description : How do signals from nerve endings retain information about their origins as they travel to the brain?

Last Answer : Harp. The answer is in the later part of your question. Each nerve has a dedicated line of transmission from the periphery to the brain. The signals travel fast owing to the fact that ... nerve ultimately signals to a specific part of the brain, which allows you to discriminate various sensations.

Which of the following statements about nerve growth factor is not true a. it is made up of 3 polypeptide subunits b. it is found in high concentration in the submaxillary salivery gland c. it is picked up by nerves from the organs they innervate d. it is present in brain

Description : Which of the following statements about nerve growth factor is not true a. it is made up of 3 polypeptide subunits b. it is found in high concentration in the submaxillary salivery gland c. it is picked up by nerves from the organs they innervate d. it is present in brain

Last Answer : it is found in high concentration in the submaxillary salivery gland

If we were to get rid of the hormones within us and electrical nerve impulses of the brain, we would pretty much achieve zombie state, am I right?

Description : If we were to get rid of the hormones within us and electrical nerve impulses of the brain, we would pretty much achieve zombie state, am I right?

Last Answer : Aren’t Zombies dead humans? We’d have to die first, no? Anyway, if we achieved zombie status, we wouldn’t know we’re in paradise so I vote no.

How many nerve cells are destroyed and brain power is lost ?

Description : How many nerve cells are destroyed and brain power is lost ?

Last Answer : When one-fourth of the nerve cells are destroyed, the capacity of the brain starts to decline.

What is the number of nerve cells in the brain ?

Description : What is the number of nerve cells in the brain ?

Last Answer : 10000 million

What is the number of nerve cells in the brain ?

Last Answer : The number of nerve cells in the brain is 10000 million

In which animal, nerve cell is present but brain is absent ?

Description : In which animal, nerve cell is present but brain is absent ?

Last Answer : In which animal, nerve cell is present but brain is absent ? A. Sponge B. Earthworm C. Cockroach D. Hydra

$ Neuron means a nerve cell. ! Neurons are found in the brain.

Description : $ Neuron means a nerve cell. ! Neurons are found in the brain.

Last Answer : $ Neuron means a nerve cell. ! Neurons are found in the brain. A. If both As and R are correct and R ... , R is wrong D. If both As and R are wrong.

What is specialized nerve cells in the brain are called?

Description : What is specialized nerve cells in the brain are called?

Last Answer : Feel Free to Answer

Which nerve carries impulses from the eye to the brain?

Description : Which nerve carries impulses from the eye to the brain?

Last Answer : The optic nerve

The following cranial nerves contain parasympathetic outflow arising at the brain stem: a. optic nerve b. oculomotor nerve c. trigeminal nerve d. facial nerve

Description : The following cranial nerves contain parasympathetic outflow arising at the brain stem: a. optic nerve b. oculomotor nerve c. trigeminal nerve d. facial nerve

Last Answer : facial nerve

The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the spinothalamic tracts d. all above

Description : The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the spinothalamic tracts d. all above

Last Answer : all above

The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the spinothalamic tracts d. is reduced by local anaesthetics through reduction of the potassium influx into the nerve fibres

Description : The pain sensation a. arises from stimulation of free nerve endings b. is transmitted to the central nervous system by unmyelinated C fibres c. is transmitted to the brain via the ... d. is reduced by local anaesthetics through reduction of the potassium influx into the nerve fibres

Last Answer : is transmitted to the brain via the spinothalamic tracts

True statement about the facial nerve include: a its nucleus is in the floor of the fourth ventricle b. its fibres reach the surface of the brain in the cerebellopontine angle c. transmits taste fibres for the anterior half of the tongue d. all above

Description : True statement about the facial nerve include: a its nucleus is in the floor of the fourth ventricle b. its fibres reach the surface of the brain in the cerebellopontine angle c. transmits taste fibres for the anterior half of the tongue d. all above

Last Answer : all above

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla. (b) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse. (c) Hypothalamus activates the parasympathetic division of brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? ... brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Last Answer : (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.

In which of the following animals nerve cell is present but brain is absent? (a) Sponge (b) Earthworm (c) Cockroach (d) Hydra

Description : In which of the following animals nerve cell is present but brain is absent? (a) Sponge (b) Earthworm (c) Cockroach (d) Hydra

Last Answer : (d) Hydra

Methyldopa lowers BP by: A. Inhibiting dopa decarboxylase in adrenergic nerve endings B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone C. Generating α-methyl noradrenaline which acts as a false transmitter in peripheral adrenergic nerve endings D. Activating vascular dopamine receptors

Description : Methyldopa lowers BP by: A. Inhibiting dopa decarboxylase in adrenergic nerve endings B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone C. Generating α-methyl ... as a false transmitter in peripheral adrenergic nerve endings D. Activating vascular dopamine receptors

Last Answer : B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal cortex (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla (3) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1 ... across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Last Answer : (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla

Neuron is the name given to which special type of biological cell? a) a nerve cell b) a brain cell c) a skin cell

Description : Neuron is the name given to which special type of biological cell? a) a nerve cell b) a brain cell c) a skin cell

Last Answer : ANSWER: A -- A NERVE CELL

White fibers are appearing in my well water. Any idea what they are or what I should do?

Description : White fibers are appearing in my well water. Any idea what they are or what I should do?

Last Answer : Do you have a filter system on the water line? There are some minerals (such as gypsum) that are fiberous but I would Google “Water Testing Services” to find one in your area and give them a call. lso, please keep us informed

What are the reticular fibers of the connective tissue and where can they be found?

Description : What are the reticular fibers of the connective tissue and where can they be found?

Last Answer : The reticular fibers are very delicate interstitial fibers made of a special type of collagen known as collagen type III. They can be found in many organs and tissues such as in lymphnodes, in the spleen, in the liver, in blood vessels and also covering muscle fibers.

They experimented with light transmission cables through bundle of fibers and lead to the development of flexible fiberscope. ∙ A. Townes, Schawlow and Kao ∙ B. Maiman, Kao and Bockham ∙ C. Maurer, Kapron and Keck ∙ D. Van Heel, Hopkins and Kapany

Description : They experimented with light transmission cables through bundle of fibers and lead to the development of flexible fiberscope. ∙ A. Townes, Schawlow and Kao ∙ B. Maiman, Kao and Bockham ∙ C. Maurer, Kapron and Keck ∙ D. Van Heel, Hopkins and Kapany

Last Answer : D. Van Heel, Hopkins and Kapany

They experimented with light transmission cables through bundle of fibers and lead to the development of flexible fiberscope

Description : They experimented with light transmission cables through bundle of fibers and lead to the development of flexible fiberscope

Last Answer : Van Heel, Hopkins and Kapany

Bats can also fly in dark because they are capable of taking the help of _____ A. Ultraviolet Waves B. Ultrasonic Waves C. Electromagnetic Waves D. Special Retina

Description : Bats can also fly in dark because they are capable of taking the help of _____ A. Ultraviolet Waves B. Ultrasonic Waves C. Electromagnetic Waves D. Special Retina

Last Answer : ANSWER: B

Bats can also fly in dark because they are capable of taking the help of -----? A. Ultraviolet Waves B. Ultrasonic Waves (Answer) C. Electromagnetic Waves D. Special Retina

Description : Bats can also fly in dark because they are capable of taking the help of -----? A. Ultraviolet Waves B. Ultrasonic Waves (Answer) C. Electromagnetic Waves D. Special Retina

Last Answer : B. Ultrasonic Waves (Answer)

Knitters* and anyone familiar with textiles; happen to know which fibers** are lint-free?

Description : Knitters* and anyone familiar with textiles; happen to know which fibers** are lint-free?

Last Answer : Oh, jeez. This is actually a toughy for me, because I love natural wools and they can lint up pretty badly. I’d think acrylics, nylons, and the like… synthetics are getting closer and closer to the real thing everyday, some of them are quite soft and fluffy without being too linty.

Why are synthetic fibers widely used for manufacturing a large variety of fabrics ? -Geography

Description : Why are synthetic fibers widely used for manufacturing a large variety of fabrics ? -Geography

Last Answer : Synthetic fibers are widely used for manufacturing a large variety of fabrics because of their special qualities like strength, durability, liability, workability, washability and resistant to wrinkles and shrinkage.

What are Purkinje fibers? What is the function of the Purkinje fibres? -Biology

Description : What are Purkinje fibers? What is the function of the Purkinje fibres? -Biology

Last Answer : answer:

How many types and what are the help fibers ?

Last Answer : Two types. Namely: a) Manila Help b) New Zealand Help.

How many types and what are the textile fibers ?

Last Answer : 2 types. Namely a) Natural fiber b) Artificial fiber.