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Human Anatomy and Physiology Lab #8 Muscle Physiology . Miriah Mertell. Muscle Identification Review. External oblique . Palmaris longus. Muscle Identification Review. Flexor hallucis longus Origin : Posterior tibia Insertion : Distal phalanx of great toe - PowerPoint PPT Presentation
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Human Anatomy and Physiology Lab#8
Muscle Physiology
Miriah Mertell
Muscle Identification Review
External oblique Palmaris longus
Muscle Identification Review
Gluteus mediusFlexor hallucis longusOrigin : Posterior tibiaInsertion : Distal phalanx of great toeAction : Flexes great toe; plantar flexes and inverts foot; the “push-off muscle” during walking
Review
Sarcomere Review
Neuromuscular Junction
The Motor Unit
Multiple motor unit recruitment
Control of Muscle Tension
Muscle Contraction
Isotonic Isometric
Treppe
Muscle Fatigue
• Inability of muscle to maintain force of contraction after prolonged activity
• Could be a result of:• Inadequate release of calcium ions from the SR• Insufficient oxygen• Depletion of glycogen and other nutrients
Exam Next Week
• 60 – 70 % Identification• Be able to identify muscles on muscle chart as
well as origin, insertion and action of those listed on syllabus
• Mainly use lab book and muscle list to study for identification
Due today:Lab manual: Ex. 13: Activity 3 (#’s 1 & 2), Activity 4 (#’s 1 &
2). Due online: • PowerPhys experiments: Twitch Contractions and
Summation, and Recruitment and contractions. – The activity links are located on the assignment tab on
WileyPlus (As you complete each experiment, save the lab report file as a PDF. Then, submit both PDF files to the eCourseware dropbox labeled-PowerPhys lab 7.)
• Real Anatomy: muscular is due by Thursday at 11:59 pm. (Access the Real anatomy activity on the assignment tab in WileyPlus.)