Muscular System

Muscular System - Muscular System Functions Movement...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Muscular System
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Functions Movement Support Stabilizing joints Heat production
Background image of page 2
Properties Contractility- the ability of muscle tissue to contract when its thick (myosin) and thin (actin) filament slide past each other Excitability- the ability of a muscle fiber to respond rapidly to a stimulating agent Extensibility- the ability to be stretched when pulled Elasticity- tends to return to original shape and length after contraction or extension
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Gross Anatomy Endomysium Perimysium Fascicles Epimysium Tendon / aponeuroses
Background image of page 4
Microscopic Anatomy Sarcolemma- a thin membrane enclosing a striated muscle fiber T tubules Sarcoplasma Glycogen granules Myoglobin Sarcoplasmic reticulum- smooth E.R., fucntion to store and release calcium ions Terminal cisternae- enlarged area surrounding T tubules Triad- structure in skeletal muscles, formed by a T tubule surrounded by S.R.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Myofibrils Striations A band I band H zone M line Z disc Sarcomere
Background image of page 6
Myofilaments Thick filaments – myosin Heads and tails Thin filament – actin Regulatory proteins Tropomyosin Troponin Elastic filaments
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Neuromuscular Junction Motor unit Motor neuron Associated muscle fiber Neuron Axon branch Synaptic vesicles Acetylcholine
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/14/2011 for the course BIO 227 taught by Professor Lonsdale during the Fall '10 term at Boise State.

Page1 / 24

Muscular System - Muscular System Functions Movement...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online