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5
248

An easy way to remember arm muscles PART 2

Dr Preddy teaching anatomy at Touro University Nevada  
youtube.com
almost 5 years ago
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5
357

Paralysis Attack (Hypokalemic Periodic Paralysis)

Video of a hypokalemic periodic paralysis attack.  
youtube.com
over 4 years ago
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4
155

Myology - Skeletal Muscle Contraction

http://www.facebook.com/ArmandoHasudungan Image: https://docs.google.com/file/d/0B8Ss3-wJfHrpdnNrVFY5TVc1WGs/edit?usp=sharing  
Nicole Chalmers
almost 6 years ago
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4
53

Neuromuscular Junction

Talks about the space between a neuron and muscle, and describes with a bit of detail about this relationship. http://www.facebook.com/ArmandoHasudungan PDF: https://docs.google.com/open?id=0B8Ss3-wJfHrpSE5NQThYR051UGc  
Nicole Chalmers
almost 6 years ago
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4
132

Neuro-Ophthalmology Lecture

This is the first 10 minutes of the neuroophthalmology eye lecture from Ophthobook.com. This lecture covers eye-muscle and ocular movement including the direction of action for all the eye muscles and how to document your exam findings.  
Nicole Chalmers
almost 6 years ago
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4
272

Anatomy of the Shoulder and Rotator Cuff

The rotator cuff (rotor cuff) is a term given to the group of muscles and their tendons that act to stabilize the shoulder. The Rotator Cuff muscles are connected individually to a group of flat tendons, which fuse together and surround the front, the back, and the top of the shoulder joint. The Rotator Cuff ligaments attach bone to bone and provide stability to the shoulder joint bones.  
aidmyrotatorcuff.com
almost 6 years ago
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4
96

Muscles of the upper arm and shoulder blade - Human Anatomy | Kenhub

Find more videos at: https://www.kenhub.com Subscribe to our YouTube channel: http://bit.ly/VOEG2I This is an Anatomy video tutorial covering the muscles of ...  
YouTube
about 5 years ago
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4
82

Shoulder (Pectoral) Girdle - Muscles and Movements - Human Anatomy | Kenhub

Find more videos at: https://www.kenhub.com Subscribe to our YouTube channel: http://bit.ly/VOEG2I The shoulder girdle consists of two bones, the scapula and...  
YouTube
about 5 years ago
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4
502

Dr. Preddy Lower Limbs Part 1

Discussion of lower limb muscles, nerves, and arteries.  
youtube.com
almost 5 years ago
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4
148

Dr. Preddy Lower Limbs Part 2

Discussion of lower limb muscles, nerves, and arteries.  
youtube.com
almost 5 years ago
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4
125

Gastrulation Lecture

Following the implantation of the blastocyst into the endometrium of uterus, the embryo begins another important embryological process called gastrulation. Gastrulation is the formation of the three distinct germ layers - the ectoderm, the mesoderm and the endoderm. The ectoderm is the outermost layer of the developing embryo and it consists of cells that eventually give rise to the integumentary system (the outer skin, nails and hair) as well as the nervous system (central and peripheral system). The mesoderm is the middle layer of the developing embryo and it consists of cells that eventually give rise to the musculoskeletal system (bone, cartilage, skeletal muscle, cardiac muscle, smooth muscle), cardiovascular system (the heart and blood vessels), excretory system (kidneys) and reproductive system (gonads). The endoderm is the innermost layer of the developing embryo and it gives rise to the epithelial layer of the digestive tract, lungs, pancreas, bladder, liver as well as the thyroid gland, parathyroid gland and thymus.  
aklectures.com
over 4 years ago
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4
62

Clinical Pediatrics | Prof. Mohsen Elkeiy on Muscle Wasting

Clinical Pediatrics Prof. Dr. Mohsen Elkeiy Al-Azhar Faculty of Medicine, Cairo.  
youtube.com
about 4 years ago
29747
3
462

Cerebellar Neuroanatomy

Introduction Examination of the cranial nerves allows one to "view" the brainstem all the way from its rostral to caudal extent. The brainstem can be divided into three levels, the midbrain, the pons and the medulla. The cranial nerves for each of these are: 2 for the midbrain (CN 3 & 4), 4 for the pons (CN 5-8), and 4 for the medulla (CN 9-12). It is important to remember that cranial nerves never cross (except for one exception, the 4th CN) and clinical findings are always on the same side as the cranial nerve involved. Cranial nerve findings when combined with long tract findings (corticospinal and somatosensory) are powerful for localizing lesions in the brainstem. Cranial Nerve 1 Olfaction is the only sensory modality with direct access to cerebral cortex without going through the thalamus. The olfactory tracts project mainly to the uncus of the temporal lobes. Cranial Nerve 2 This cranial nerve has important localizing value because of its "x" axis course from the eye to the occipital cortex. The pattern of a visual field deficit indicates whether an anatomical lesion is pre- or postchiasmal, optic tract, optic radiation or calcarine cortex. Cranial Nerve 3 and 4 These cranial nerves give us a view of the midbrain. The 3rd nerve in particular can give important anatomical localization because it exits the midbrain just medial to the cerebral peduncle. The 3rd nerve controls eye adduction (medial rectus), elevation (superior rectus), depression (inferior rectus), elevation of the eyelid (levator palpebrae superioris), and parasympathetics for the pupil. The 4th CN supplies the superior oblique muscle, which is important to looking down and in (towards the midline). Pontine Level Cranial nerves 5, 6, 7, and 8 are located in the pons and give us a view of this level of the brainstem. Cranial Nerve 6 This cranial nerve innervates the lateral rectus for eye abduction. Remember that cranial nerves 3, 4 and 6 must work in concert for conjugate eye movements; if they don't then diplopia (double vision) results. The medial longitudinal fasciculus (MLF) connects the 6th nerve nucleus to the 3rd nerve nucleus for conjugate movement. Major Oculomotor Gaze Systems Eye movements are controlled by 4 major oculomotor gaze systems, which are tested for on the neurological exam. They are briefly outlined here: Saccadic (frontal gaze center to PPRF (paramedian pontine reticular formation) for rapid eye movements to bring new objects being viewed on to the fovea. Smooth Pursuit (parietal-occipital gaze center via cerebellar and vestibular pathways) for eye movements to keep a moving image centered on the fovea. Vestibulo-ocular (vestibular input) keeps image steady on fovea during head movements. Vergence (optic pathways to oculomotor nuclei) to keep image on fovea predominantly when the viewed object is moved near (near triad- convergence, accommodation and pupillary constriction) Cranial Nerve 5 The entry zone for this cranial nerve is at the mid pons with the motor and main sensory (discriminatory touch) nucleus located at the same level. The axons for the descending tract of the 5th nerve (pain and temperature) descend to the level of the upper cervical spinal cord before they synapse with neurons of the nucleus of the descending tract of the 5th nerve. Second order neurons then cross over and ascend to the VPM of the thalamus. Cranial Nerve 7 This cranial nerve has a motor component for muscles of facial expression (and, don't forget, the strapedius muscle which is important for the acoustic reflex), parasympathetics for tear and salivary glands, and sensory for taste (anterior two-thirds of the tongue). Central (upper motor neuron-UMN) versus Peripheral (lower motor neuron-LMN) 7th nerve weakness- with a peripheral 7th nerve lesion all of the muscles ipsilateral to the affected nerve will be weak whereas with a "central 7th ", only the muscles of the lower half of the face contralateral to the lesion will be weak because the portion of the 7th nerve nucleus that supplies the upper face receives bilateral corticobulbar (UMN) input. Cranial Nerve 8 This nerve is a sensory nerve with two divisions- acoustic and vestibular. The acoustic division is tested by checking auditory acuity and with the Rinne and Weber tests. The vestibular division of this nerve is important for balance. Clinically it be tested with the oculocephalic reflex (Doll's eye maneuver) and oculovestibular reflex (ice water calorics). Medullary Level Cranial nerves 9,10,11, and 12 are located in the medulla and have localizing value for lesions in this most caudal part of the brainstem. Cranial nerves 9 and 10 These two nerves are clinically lumped together. Motor wise, they innervate pharyngeal and laryngeal muscles. Their sensory component is sensation for the pharynx and taste for the posterior one-third of the tongue. Cranial Nerve 11 This nerve is a motor nerve for the sternocleidomastoid and trapezius muscles. The UMN control for the sternocleidomastoid (SCM) is an exception to the rule of the ipsilateral cerebral hemisphere controls the movement of the contralateral side of the body. Because of the crossing then recrossing of the corticobulbar tracts at the high cervical level, the ipsilateral cerebral hemisphere controls the ipsilateral SCM muscle. This makes sense as far as coordinating head movement with body movement if you think about it (remember that the SCM turns the head to the opposite side). So if I want to work with the left side of my body I would want to turn my head to the left so the right SCM would be activated. Cranial Nerve 12 The last of the cranial nerves, CN 12 supplies motor innervation for the tongue. Traps A 6th nerve palsy may be a "false localizing sign". The reason for this is that it has the longest intracranial route of the cranial nerves, therefore it is the most susceptible to pressure that can occur with any cause of increased intracranial pressure.  
Neurologic Exam
almost 9 years ago
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3
140

Spinal Pathways 4 - Corticospinal Tract

http://www.handwrittentutorials.com - The fourth instalment in the Spinal Pathways series. This video looks at the course of the corticospinal tract, from the Precentral gyrus to the peripheral muscles. For more entirely FREE tutorials and accompanying PDFs visit http://www.handwrittentutorials.com  
HelpHippo.com
almost 6 years ago
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3
145

ECG Interpretation - Atrio-Ventricular Block

http://www.acadoodle.com Atrial depolarisation is transmitted to the ventricular myocardium by the AV node and intraventricular conducting system. The time between the onset of atrial depolarisation and the release of depolarisation into the ventricular myocardium from the terminal branches of the conducting system is represented by the PR interval on the ECG. Dysfunction of the AV node or diffuse damage to components of the ventricular conducting system can result in a delay or even failure of transmission of atrial depolarisation into the ventricular muscle mass. This situation is referred to as atrioventricular or AV block. Three degrees of AV block are recognised. First degree AV block is defined by transmission of all P waves to the ventricular myocardium but with prolongation of the PR interval beyond the upper limit of normal on the ECG. Second degree AV block is defined by failure of conduction of some P waves into the ventricles. In third degree or 'complete' AV block, no P waves are transmitted to the ventricular myocardium. Acadoodle.com is a web resource that provides Videos and Interactive Games to teach the complex nature of ECG / EKG. 3D reconstructions and informative 2D animations provide the ideal learning environment for this field. For more videos and interactive games, visit Acadoodle.com Information provided by Acadoodle.com and associated videos is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information provided by Acadoodle.com and associated videos is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs.  
ECG Teacher
almost 6 years ago
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3
125

Muscle Muscle Tissue and the Sarcomere

Covers the types and characteristics of muscular tissue and microscopic anatomy of skeletal muscle.  
Nicole Chalmers
almost 6 years ago