Study Guides (248,683)
Canada (121,693)
Physiology (12)
PLN 103 (6)


2 Pages

Course Code
PLN 103
Ottilie Kate Grisdale

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
PLN FINAL: 1. Describe the steps involved from the appearance of an action potential at a synapse to force production in a muscle 2. What two factors affect the amount of tension produced when a skeletal muscle contracts? i. Tension produced by the stimulation of muscle fibres ii. # of muscle fibres (motor units) stimulated 3. What two mechanisms are used to generate ATP from glucose in muscles cells? 4. Compare and contrast the structural and functional characteristics of skeletal and smooth muscle. 5. What is the functional difference among voltage – gated, chemically gated, and mechanically gated channels? 6. What is meant by salutatory propagation? How does it differ from continuous propagation? 3 Types of Muscles: 1. Skeletal; moves body muscle via muscle fibre functional: skeletal movement posture and body position supports body tissue Guard entrances and exits maintains core temperature Structural: ->consists of fascicles, which has bundles of muscle fibres (muscle fibres are made outta myoblasts represented through nucleus, which rep fused myoblasts (satellite reps unfused myo)) ->muscle tissue is closed by the epimysium ->each muscle fibre is separated by perimysium (which consists of blood vessels + nerves) ->facicles consists endomysium (which contain satellite cells; as well mitochondria, nuclei on the myoblasts & other organelles) ->Transverse tubules carry action potential (has the electrical impulse) ->sarcomers: units tht have thick (myosin) + thin (actin) filaments + regulatory protein + stabilizing protein Myofilaments: ->I band: Thin filament, actin, has troponin (tropomyosin interact to prevent/turn on contraction) ->A band: thick, myosin ->Z line: boundary b/w adjacent sarcomeres ->H line: Region of thin filaments ->M line
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.