Download Free Medical Muscle PowerPoint Presentation

Muscle PowerPoint Presentation

DOWNLOAD MEDICAL POWERPOINT PRESENTATION

About This Presentation

Description : Case of an afebrile baby. Radiograph of the involved extremity and spine on the right was unremarkable. Electromyography and nerve conduction velocity studies shows absent motor responses to stimulation of tibial nerve. Stool culture was positive for Poliovirus type 3.

Tags : Functional organization of skeletal muscle, excitation contraction coupling, Muscle twitch, Quantal summation, Frequency summation, physiology of paralysis, poliovirus, causation of paralysis

Published on : Feb 02, 2021 | Views : 1670 | Downloads : 13

Shareable Url :

Embed Code :

Comment

Transcript

Slide 1-

MUSCLE
Slide 2-

CASE AB, 6 month old female presents at the Emergency department with weakness in the right leg. One week prior to consult her mother noticed that the baby had cough, colds and low grade fever (38.2oC) that spontaneously resolved. No consult was done. Past medical history revealed normal birth history and appropriate well baby check ups. Immunization records showed she had a BCG vaccine, 2 shots of Hib, DPT, OPV and pneumococcal vaccines. Physical Examination revealed an afebrile baby with To of 37.2oC; RR is 21 bpm; HR is 95 bpm. Right leg appears to be flaccid and with absent deep tendon reflex (DTR) nor Babinski’s sign. Baby responds to sensory stimulation. Muscle tone, motor activity, sensations and DTRs of the left leg are within normal limits. The rest of the systems were unremarkable. Radiograph of the involved extremity and spine on the right was unremarkable. Electromyography and nerve conduction velocity studies shows absent motor responses to stimulation of tibial nerve. Stool culture was positive for Poliovirus type 3. Diagnosis: Poliomyelitis, right
Slide 3-

Functional organization of skeletal muscle
Slide 4-

ppt slide no 4 content not found
Slide 5-

ppt slide no 5 content not found
Slide 6-

ppt slide no 6 content not found
Slide 7-

Excitation-Contraction Coupling
Slide 8-

ppt slide no 8 content not found
Slide 9-

ppt slide no 9 content not found
Slide 10-

ppt slide no 10 content not found
Slide 11-

ppt slide no 11 content not found
Slide 12-

Muscle twitch and its phases
Slide 13-

MUSCLE TWITCH Mechanical response brought about by a single action potential followed by relaxation 3 PHASES OF MUSCLE TWITCH Latent Phase Contraction Phase Relaxation Phase
Slide 14-

ppt slide no 14 content not found
Slide 15-

ppt slide no 15 content not found
Slide 16-

Differentiate: Quantal summation and Frequency summation
Slide 17-

QUANTAL SUMMATION Summation of individual muscle fiber contractions happens by increasing the number of motor units contracting simultaneously.
Slide 18-

QUANTAL SUMMATION (Size Principle)
Slide 19-

FREQUENCY SUMMATION Intensity is constant and at its maximal state but the frequency of applying the intensity is increased.
Slide 20-

FREQUENCY SUMMATION (Tetanization) Applying same intensity but with an increasing frequency while the muscle is not allowed to completely relax
Slide 21-

FREQUENCY SUMMATION (Treppe/Staircase Phenomenon)
Slide 22-

QUANTAL SUMMATION vs. FREQUENCY SUMMATION
Slide 23-

Explain the physiology of paralysis of the patient. What is the role of the poliovirus in the causation of paralysis?
Slide 24-

ppt slide no 24 content not found
Slide 25-

ppt slide no 25 content not found
Slide 26-

ppt slide no 26 content not found
Slide 27-

ppt slide no 27 content not found
Slide 28-

Compare the type of paralysis induced by Botulinum toxin and Tetanus toxin with the patient’s condition
Slide 29-

ppt slide no 29 content not found
Slide 30-

ppt slide no 30 content not found
Slide 31-

ppt slide no 31 content not found
Slide 32-

ppt slide no 32 content not found
Slide 33-

ppt slide no 33 content not found
Slide 34-

ppt slide no 34 content not found
Slide 35-

ppt slide no 35 content not found
Slide 36-

ppt slide no 36 content not found
Slide 37-

ppt slide no 37 content not found
Slide 38-

ppt slide no 38 content not found
Slide 39-

ppt slide no 39 content not found