2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)

Subjects: Neurosciences
|
Submitted by:
Neuroscientifically Challenged

View Times: 0
|
Release Date: 2024-01-26

Neuroscience Made Simpler

2-Minute Neuroscience: Zolpidem (Ambien)

10-Minute Neuroscience: Depression

2-Minute Neuroscience: Sleepwalking

2-Minute Neuroscience: Vertigo

2-Minute Neuroscience: Migraine

2-Minute Neuroscience: Methylphenidate

2-Minute Neuroscience: DMT

2-Minute Neuroscience: Cochlear Implants

2-Minute Neuroscience: Frontotemporal Dementia

2-Minute Neuroscience: Spina Bifida

2-Minute Neuroscience: Sleep Paralysis

2-Minute Neuroscience: Fatal Insomnia

2-Minute Neuroscience: PTSD

2-Minute Neuroscience: Schizophrenia

2-Minute Neuroscience: COVID-19 & the Brain

2-Minute Neuroscience: Obsessive-Compulsive Disorder

2-Minute Neuroscience: ADHD

2-Minute Neuroscience: Restless Legs Syndrome

2-Minute Neuroscience: Autism

2-Minute Neuroscience: Narcolepsy

2-Minute Neuroscience: MDMA

2-Minute Neuroscience: Brain Aneurysms

2-Minute Neuroscience: Bell's Palsy

2-Minute Neuroscience: Tinnitus

2-Minute Neuroscience: Ketamine

2-Minute Neuroscience: Chronic Traumatic Encephalopathy

2-Minute Neuroscience: Motor Neurons

2-Minute Neuroscience: Phantom Limb

10-Minute Neuroscience: Visual Pathways

10-Minute Neuroscience: Action Potentials

10-Minute Neuroscience: Synapses

10-Minute Neuroscience: Neurons

2-Minute Neuroscience: Tourette Syndrome

2-Minute Neuroscience: Withdrawal Reflex

2-Minute Neuroscience: Serotonin-Norepinephrine Reuptake Inhibitors

2-Minute Neuroscience: Cerebral Cortex

2-Minute Neuroscience: Deep Brain Stimulation

2-Minute Neuroscience: Meningitis

2-Minute Neuroscience: Wernicke-Korsakoff Syndrome

2-Minute Neuroscience: Corneal Reflex

2-Minute Neuroscience: CBD

2-Minute Neuroscience: THC

2-Minute Neuroscience: Alien Hand Syndrome

2-Minute Neuroscience: Melatonin

2-Minute Neuroscience: Psilocybin

2-Minute Neuroscience: Agonism, Antagonism, & Allosteric Modulation

2-Minute Neuroscience: LSD

2-Minute Neuroscience: Beta-Endorphin

2-Minute Neuroscience: L-DOPA

2-Minute Neuroscience: Parasympathetic Nervous System

2-Minute Neuroscience: Sympathetic Nervous System

2-Minute Neuroscience: Indirect Pathway of the Basal Ganglia

2-Minute Neuroscience: Direct Pathway of the Basal Ganglia

2-Minute Neuroscience: Functional Magnetic Resonance Imaging (fMRI)

2-Minute Neuroscience: Norepinephrine

2-Minute Neuroscience: Sodium-Potassium Pump

2-Minute Neuroscience: Electroencephalography (EEG)

2-Minute Neuroscience: Trochlear Nerve (Cranial Nerve IV)

2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)

2-Minute Neuroscience: Touch Receptors

2-Minute Neuroscience: Hypoglossal Nerve (Cranial Nerve XII)

2-Minute Neuroscience: Accessory Nerve (Cranial Nerve XI)

2-Minute Neuroscience: Prefrontal Cortex

2-Minute Neuroscience: Vagus Nerve (Cranial Nerve X)

2-Minute Neuroscience: Phototransduction

2-Minute Neuroscience: Glossopharyngeal Nerve (Cranial Nerve IX)

2-Minute Neuroscience: Methadone

2-Minute Neuroscience: Vestibulocochlear Nerve (Cranial Nerve VIII)

2-Minute Neuroscience: Nicotine

2-Minute Neuroscience: Facial Nerve (Cranial Nerve VII)

2-Minute Neuroscience: Abducens Nerve (Cranial Nerve VI)

2-Minute Neuroscience: Concussions

2-Minute Neuroscience: Trigeminal Nerve (Cranial Nerve V)

2-Minute Neuroscience: Opioids

2-Minute Neuroscience: Optic Nerve (Cranial Nerve II)

2-Minute Neuroscience: Olfactory Nerve (Cranial Nerve I)

2-Minute Neuroscience: Brain Tumors

2-Minute Neuroscience: Glial Cells

2-Minute Neuroscience: Stages of Sleep

2-Minute Neuroscience: HPA Axis

2-Minute Neuroscience: Huntington's Disease

2-Minute Neuroscience: Amphetamine

2-Minute Neuroscience: Corpus Callosum

2-Minute Neuroscience: Pons

2-Minute Neuroscience: Parkinson's Disease

2-Minute Neuroscience: Hydrocephalus

2-Minute Neuroscience: Dopamine

2-Minute Neuroscience: Stroke

2-Minute Neuroscience: Glutamate

2-Minute Neuroscience: Blood Supply of the Brain

2-Minute Neuroscience: Neurotransmitter Release

2-Minute Neuroscience: Serotonin

2-Minute Neuroscience: Oxytocin

2-Minute Neuroscience: Long-Term Potentiation (LTP)

2-Minute Neuroscience: Wernicke's Area

2-Minute Neuroscience: Broca's Area

2-Minute Neuroscience: Acetylcholine

2-Minute Neuroscience: GABA

2-Minute Neuroscience: Taste

2-Minute Neuroscience: Alcohol

2-Minute Neuroscience: Olfaction

2-Minute Neuroscience: Selective Serotonin Reuptake Inhibitors (SSRIs)

2-Minute Neuroscience: Midbrain

2-Minute Neuroscience: Periaqueductal Gray (PAG)

2-Minute Neuroscience: Benzodiazepines

2-Minute Neuroscience: Caffeine

2-Minute Neuroscience: Long-Term Depression (LTD)

2-Minute Neuroscience: Amyotrophic Lateral Sclerosis (ALS)

2-Minute Neuroscience: Pineal Gland

2-Minute Neuroscience: Primary Somatosensory Cortex

2-Minute Neuroscience: Suprachiasmatic Nucleus

2-Minute Neuroscience: Nucleus Accumbens

2-Minute Neuroscience: Ventral Tegmental Area (VTA)

2-Minute Neuroscience: Medulla Oblongata

2-Minute Neuroscience: Vestibular System

2-Minute Neuroscience: Amygdala

2-Minute Neuroscience: Striatum

2-Minute Neuroscience: Epilepsy

2-Minute Neuroscience: Multiple Sclerosis

2-Minute Neuroscience: Alzheimer's Disease

2-Minute Neuroscience: Neuromuscular Junction

2-Minute Neuroscience: Knee-Jerk Reflex

2-Minute Neuroscience: Substantia Nigra

2-Minute Neuroscience: Corticospinal Tract

2-Minute Neuroscience: Basal Ganglia

2-Minute Neuroscience: Motor Cortex

2-Minute Neuroscience: Cerebellum

2-Minute Neuroscience: Effects of Cocaine

2-Minute Neuroscience: Blood-Brain Barrier

2-Minute Neuroscience: Myelin

2-Minute Neuroscience: Pain and the Anterolateral System

2-Minute Neuroscience: Touch and the Dorsal Columns-Medial Lemniscus

2-Minute Neuroscience: The Cochlea

2-Minute Neuroscience: The Retina

2-Minute Neuroscience: The Hippocampus

2-Minute Neuroscience: The Thalamus

2-Minute Neuroscience: The Brainstem

2-Minute Neuroscience: The Meninges

2-Minute Neuroscience: The Ventricles

2-Minute Neuroscience: Directional Terms in Neuroscience

2-Minute Neuroscience: Spinal Cord Cross-Section

2-Minute Neuroscience: Exterior of the Spinal Cord

2-Minute Neuroscience: Reward System

2-Minute Neuroscience: Limbic System

2-Minute Neuroscience: Hypothalamus & Pituitary Gland

2-Minute Neuroscience: Neuroimaging

2-Minute Neuroscience: Early Neural Development

2-Minute Neuroscience: Receptors & Ligands

2-Minute Neuroscience: Lobes/Landmarks of the Brain Surface

2-Minute Neuroscience: Divisions of the Nervous System

2-Minute Neuroscience: Action Potential

2-Minute Neuroscience: Membrane Potential

2-Minute Neuroscience: Synaptic Transmission

2-Minute Neuroscience: The Neuron

Playlist

2-Minute Neuroscience: Zolpidem (Ambien)

10-Minute Neuroscience: Depression

2-Minute Neuroscience: Sleepwalking

2-Minute Neuroscience: Vertigo

2-Minute Neuroscience: Migraine

2-Minute Neuroscience: Methylphenidate

2-Minute Neuroscience: DMT

2-Minute Neuroscience: Cochlear Implants

2-Minute Neuroscience: Frontotemporal Dementia

2-Minute Neuroscience: Spina Bifida

2-Minute Neuroscience: Sleep Paralysis

2-Minute Neuroscience: Fatal Insomnia

2-Minute Neuroscience: PTSD

2-Minute Neuroscience: Schizophrenia

2-Minute Neuroscience: COVID-19 & the Brain

2-Minute Neuroscience: Obsessive-Compulsive Disorder

2-Minute Neuroscience: ADHD

2-Minute Neuroscience: Restless Legs Syndrome

2-Minute Neuroscience: Autism

2-Minute Neuroscience: Narcolepsy

2-Minute Neuroscience: MDMA

2-Minute Neuroscience: Brain Aneurysms

2-Minute Neuroscience: Bell's Palsy

2-Minute Neuroscience: Tinnitus

2-Minute Neuroscience: Ketamine

2-Minute Neuroscience: Chronic Traumatic Encephalopathy

2-Minute Neuroscience: Motor Neurons

2-Minute Neuroscience: Phantom Limb

10-Minute Neuroscience: Visual Pathways

10-Minute Neuroscience: Action Potentials

10-Minute Neuroscience: Synapses

10-Minute Neuroscience: Neurons

2-Minute Neuroscience: Tourette Syndrome

2-Minute Neuroscience: Withdrawal Reflex

2-Minute Neuroscience: Serotonin-Norepinephrine Reuptake Inhibitors

2-Minute Neuroscience: Cerebral Cortex

2-Minute Neuroscience: Deep Brain Stimulation

2-Minute Neuroscience: Meningitis

2-Minute Neuroscience: Wernicke-Korsakoff Syndrome

2-Minute Neuroscience: Corneal Reflex

2-Minute Neuroscience: CBD

2-Minute Neuroscience: THC

2-Minute Neuroscience: Alien Hand Syndrome

2-Minute Neuroscience: Melatonin

2-Minute Neuroscience: Psilocybin

2-Minute Neuroscience: Agonism, Antagonism, & Allosteric Modulation

2-Minute Neuroscience: LSD

2-Minute Neuroscience: Beta-Endorphin

2-Minute Neuroscience: L-DOPA

2-Minute Neuroscience: Parasympathetic Nervous System

2-Minute Neuroscience: Sympathetic Nervous System

2-Minute Neuroscience: Indirect Pathway of the Basal Ganglia

2-Minute Neuroscience: Direct Pathway of the Basal Ganglia

2-Minute Neuroscience: Functional Magnetic Resonance Imaging (fMRI)

2-Minute Neuroscience: Norepinephrine

2-Minute Neuroscience: Sodium-Potassium Pump

2-Minute Neuroscience: Electroencephalography (EEG)

2-Minute Neuroscience: Trochlear Nerve (Cranial Nerve IV)

2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)

2-Minute Neuroscience: Touch Receptors

2-Minute Neuroscience: Hypoglossal Nerve (Cranial Nerve XII)

2-Minute Neuroscience: Accessory Nerve (Cranial Nerve XI)

2-Minute Neuroscience: Prefrontal Cortex

2-Minute Neuroscience: Vagus Nerve (Cranial Nerve X)

2-Minute Neuroscience: Phototransduction

2-Minute Neuroscience: Glossopharyngeal Nerve (Cranial Nerve IX)

2-Minute Neuroscience: Methadone

2-Minute Neuroscience: Vestibulocochlear Nerve (Cranial Nerve VIII)

2-Minute Neuroscience: Nicotine

2-Minute Neuroscience: Facial Nerve (Cranial Nerve VII)

2-Minute Neuroscience: Abducens Nerve (Cranial Nerve VI)

2-Minute Neuroscience: Concussions

2-Minute Neuroscience: Trigeminal Nerve (Cranial Nerve V)

2-Minute Neuroscience: Opioids

2-Minute Neuroscience: Optic Nerve (Cranial Nerve II)

2-Minute Neuroscience: Olfactory Nerve (Cranial Nerve I)

2-Minute Neuroscience: Brain Tumors

2-Minute Neuroscience: Glial Cells

2-Minute Neuroscience: Stages of Sleep

2-Minute Neuroscience: HPA Axis

2-Minute Neuroscience: Huntington's Disease

2-Minute Neuroscience: Amphetamine

2-Minute Neuroscience: Corpus Callosum

2-Minute Neuroscience: Pons

2-Minute Neuroscience: Parkinson's Disease

2-Minute Neuroscience: Hydrocephalus

2-Minute Neuroscience: Dopamine

2-Minute Neuroscience: Stroke

2-Minute Neuroscience: Glutamate

2-Minute Neuroscience: Blood Supply of the Brain

2-Minute Neuroscience: Neurotransmitter Release

2-Minute Neuroscience: Serotonin

2-Minute Neuroscience: Oxytocin

2-Minute Neuroscience: Long-Term Potentiation (LTP)

2-Minute Neuroscience: Wernicke's Area

2-Minute Neuroscience: Broca's Area

2-Minute Neuroscience: Acetylcholine

2-Minute Neuroscience: GABA

2-Minute Neuroscience: Taste

2-Minute Neuroscience: Alcohol

2-Minute Neuroscience: Olfaction

2-Minute Neuroscience: Selective Serotonin Reuptake Inhibitors (SSRIs)

2-Minute Neuroscience: Midbrain

2-Minute Neuroscience: Periaqueductal Gray (PAG)

2-Minute Neuroscience: Benzodiazepines

2-Minute Neuroscience: Caffeine

2-Minute Neuroscience: Long-Term Depression (LTD)

2-Minute Neuroscience: Amyotrophic Lateral Sclerosis (ALS)

2-Minute Neuroscience: Pineal Gland

2-Minute Neuroscience: Primary Somatosensory Cortex

2-Minute Neuroscience: Suprachiasmatic Nucleus

2-Minute Neuroscience: Nucleus Accumbens

2-Minute Neuroscience: Ventral Tegmental Area (VTA)

2-Minute Neuroscience: Medulla Oblongata

2-Minute Neuroscience: Vestibular System

2-Minute Neuroscience: Amygdala

2-Minute Neuroscience: Striatum

2-Minute Neuroscience: Epilepsy

2-Minute Neuroscience: Multiple Sclerosis

2-Minute Neuroscience: Alzheimer's Disease

2-Minute Neuroscience: Neuromuscular Junction

2-Minute Neuroscience: Knee-Jerk Reflex

2-Minute Neuroscience: Substantia Nigra

2-Minute Neuroscience: Corticospinal Tract

2-Minute Neuroscience: Basal Ganglia

2-Minute Neuroscience: Motor Cortex

2-Minute Neuroscience: Cerebellum

2-Minute Neuroscience: Effects of Cocaine

2-Minute Neuroscience: Blood-Brain Barrier

2-Minute Neuroscience: Myelin

2-Minute Neuroscience: Pain and the Anterolateral System

2-Minute Neuroscience: Touch and the Dorsal Columns-Medial Lemniscus

2-Minute Neuroscience: The Cochlea

2-Minute Neuroscience: The Retina

2-Minute Neuroscience: The Hippocampus

2-Minute Neuroscience: The Thalamus

2-Minute Neuroscience: The Brainstem

2-Minute Neuroscience: The Meninges

2-Minute Neuroscience: The Ventricles

2-Minute Neuroscience: Directional Terms in Neuroscience

2-Minute Neuroscience: Spinal Cord Cross-Section

2-Minute Neuroscience: Exterior of the Spinal Cord

2-Minute Neuroscience: Reward System

2-Minute Neuroscience: Limbic System

2-Minute Neuroscience: Hypothalamus & Pituitary Gland

2-Minute Neuroscience: Neuroimaging

2-Minute Neuroscience: Early Neural Development

2-Minute Neuroscience: Receptors & Ligands

2-Minute Neuroscience: Lobes/Landmarks of the Brain Surface

2-Minute Neuroscience: Divisions of the Nervous System

2-Minute Neuroscience: Action Potential

2-Minute Neuroscience: Membrane Potential

2-Minute Neuroscience: Synaptic Transmission

2-Minute Neuroscience: The Neuron

oculomotor nerve
extraocular muscles

Video Introduction

The oculomotor nerve is responsible for supplying 4 of the 6 extraocular muscles: the medial rectus, which moves the eye towards the nose; the superior rectus, which moves the eye upwards; the inferior rectus, which moves the eye downwards; and the inferior oblique, which moves the eye up and out. Additionally, the nerve supplies the levator palpebrae superioris, which is the muscle that elevates the eyelid. It also forms connections with neurons in the ciliary ganglion, which innervate the pupillary sphincter to control the constriction of the pupil and the ciliary muscle, which adjusts the shape of the lens to see clearly at close distances.

Oculomotor nerve fibers originate in the oculomotor nucleus in the midbrain. From here, they travel to the orbit of the eye, along the way separating into branches that control the different extraocular muscles. The fibers that control the pupillary sphincter and ciliary muscle originate in the Edinger-Westphal nucleus and travel with the oculomotor nerve.

Damage to the oculomotor nerve causes deficits in the ipsilateral eye. A common symptom is a deviation of the affected eye to the side and downwards due to the paralysis of the medial rectus and inferior oblique, and the unopposed action of the unaffected extraocular muscles. Medial eye movements may also be impaired due to paralysis of the medial rectus, and vertical eye movements may be impaired due to the paralysis of the superior and inferior recti and inferior oblique. Diplopia, or double-vision, is common. Ptosis, or drooping of the eyelid may occur due to the paralysis of the levator palpebrae superioris. Because the pupillary constriction muscle is impaired, the pupil on the side of the damage may remain dilated, a condition known as mydriasis. And the patient may have a difficult time focusing the lens for close-up vision due to effects on the ciliary muscle. ^[1]

References

Vanderah TW, Gould DJ. Nolte's The Human Brain. 7th ed. Philadelphia, PA: Elsevier; 2016.

Full Transcript

1000/1000

Hot Most Recent

©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.

Confirm

Name: 2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)
Uploaded: 2024-01-29T02:54:46+00:00
Description: The oculomotor nerve is responsible for supplying 4 of the 6 extraocular muscles: the medial rectus, which moves the eye towards the nose; the superior rectus, which moves the eye upwards; the inferior rectus, which moves the eye downwards; and the inferior oblique, which moves the eye up and out

Are you sure to Delete?

Yes No

Cite

If you have any further questions, please contact Encyclopedia Editorial Office.

Select a Style

Challenged, N. 2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III). Encyclopedia. Available online: https://encyclopedia.pub/video/video_detail/1091 (accessed on 15 November 2024).

Challenged N. 2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III). Encyclopedia. Available at: https://encyclopedia.pub/video/video_detail/1091. Accessed November 15, 2024.

Challenged, Neuroscientifically. "2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)" Encyclopedia, https://encyclopedia.pub/video/video_detail/1091 (accessed November 15, 2024).

Challenged, N. (2024, January 26). 2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III). In Encyclopedia. https://encyclopedia.pub/video/video_detail/1091

Challenged, Neuroscientifically. "2-Minute Neuroscience: Oculomotor Nerve (Cranial Nerve III)." Encyclopedia. Web. 26 January, 2024.