potassium than sodium. When synaptic activity makes the cell less negative‚ the sodium channels open. If the cell voltage goes past a certain level‚ an action potential is produced. Action potentials‚ changes in the membrane potential that happen when a nerve cell membrane is stimulated (Ritchison)‚ happen within milliseconds. After the voltage has reached the threshold potential‚ more voltage-gated sodium channels open and the voltage of the membrane reaches its most positive value. The voltage-gated sodium
Premium Action potential Neuron
the sutures. INNERVATION / NERVE SUPPLY There are 10 nerves that enter the scalp. Nerve supply is divided into 2 parts Preauricular (nerves entering in front of the ear) and posterior auricular (nerves entering behind the ear). Preauricular * Supratrochlear nerve * Supraorbital nerve * Zygomaticotemporal nerve * Temporal branch of facial nerve * Auriculotemporal nerve Posterior auricular * Great auricular nerve * Posterior auricular nerve * Lesser occipital
Premium Blood
posterior tibial nerve. Anatomy: The posterior tibial nerve is a branch of the sciatic nerve and innervates the posterior compartment of the legs. As it continues down the leg‚ it passes posteriorly and inferiorly to the medial malleolus. It ends and branches off into sensory branches that innervate the sole of the foot. The tibial nerve travels through the tarsal tunnel and is covered superiorly by the flexor retinaculum. At this point‚ branches stemming from the tibial nerve innervate the heel
Premium Inflammation Rheumatoid arthritis Knee
ASSESSMENT COVERSHEET STUDENT DETAILS Student ID 25166905 Surname Xu First Name Tim Hai Tian ASSESSMENT DETAILS Unit Code BMS2031 Unit Title Body System Assignment Title Activity of Gastrointestinal Smooth muscle Lecturer name Julia Choate Tutor’s name Tutorial Day Thursday Tutorial Time 2p.m. Has any part of this assignment been previously submitted as part of another unit/course? Y N X Is this an authorised group assessment?
Premium Acetylcholine Autonomic nervous system Sympathetic nervous system
SYSTEMS 3. AFFERENT VS. EFFERENT NERVES. What does each do? 4. SOMATIC VS AUTONOMIC NERVOUS SYSTEM What does each do? Which is involuntary? 5. SYMPATHETIC VS PARASYMPATHETIC What are some things that happen when you get scared? When you have just had a big meal? 6. Draw the Graphic Organizer for the nervous system 7. ANATOMY OF A NEURON with a MYELIN SHEATH [pic] |Nerve Part |Function
Premium Nervous system Neuron
median neuropathy at the wrist due to compression of the median nerve beneath the transverse carpal ligament 2; 3 ; 4. Carpal tunnel syndrome is confirmed by the identification of abnormal median nerve conduction tests across the carpal tunnel. Nerve conduction tests are essential in the confirmation of the diagnosis of suspected cases of CTS. These tests are objective tests that assess the physiological status of the median nerve across the carpal tunnel 5 ; 6. The results of electrodiagnostic
Premium Brain Nervous system Neuron
posterior aspect of the lateral third clavicle Innervation: spinal accessory (cranial XI) nerve Levator Scapula {Relative Position to Relevant Landmark:} Deep lying muscle Lateral posterior Proximal Attachment: upper four cervical vertebrae on the transverse processes Distal Attachment: superior angle of the scapula (medial border of scapula above spine) Innervation: dorsal scapular nerve Rhomboids {Relative Position to Relevant Landmark:}(all covered up) Deep
Premium Brachial plexus Scapula
retracts the scapula spinal accessory nerve (CN XI) and ventral rami C3-C4 (sensory) N: Latissimus dorsi 0: 1: A: N: thoracolumbar fascia‚ spinous processes ofT7-L5‚ iliac crests intertuburcular groove of the humerus adduction‚ extension and medial rotation of the humerus thoracodorsal n. (C6-C8) LAYER TWO: Levator scapulae 0: 1: A: N: transverse processes C 1-C4 superior portion of medial border of scapula scapular elevation and rotation dorsal scapular nerve 3 Rhomboid minor 0: I:
Premium
Neuropathy: Get the Facts on This Little-Known Nerve Disorder Neuropathy or peripheral neuropathy afflicts millions of people across this country. If you suffer from this disorder‚ your symptoms may include unexplained pain‚ tingling‚ numbness or muscle weakness. The symptoms will appear in the legs‚ feet‚ arms‚ hands and other parts of your body depending on the cause of it in a particular sufferer. When you first notice signs of the disorder‚ you should consult a doctor to receive a proper diagnosis
Premium Psychology Brain Nervous system
(FAS). Mothers who consume alcohol anytime during pregnancy‚ puts their children at risk for multiple constellations of abnormalities when they are born. A common condition observed in children affected is optic nerve hypoplasia‚ which basically is the underdevelopment of the optic nerve during pregnancy. The affected child has abnormal shaped eyes that appear closer together‚ which can contribute to the poor visual acuity and their dysmorphic facial features shown up to ninety percent of the births
Premium Pregnancy Fetal alcohol syndrome Mental retardation