The Muscular System
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Transcript of The Muscular System
The Muscular System
http://sparkcharts.sparknotes.com/health/generalanatomy/section13.php
Producing motion in the human bodyProviding stabilityMaking heatDigestion circulationEnsures blood flow
Functions of the Muscular System
Skeletal muscles consist of densely packed groups of elongated cells called fascicles, that are held together by connective tissues
The general structure of a muscle fiber include myofibrils, which are composed of two kinds of filaments
Thin -Protein actin Thick- Protein mysosin
The Structure of a Muscle
Diagram of a muscle
http://www.sport-fitness-advisor.com/muscle-anatomy.html
Three types of muscle tissuesSkeletal~ stripped appearance
EX: cleitoids, abdominalsSmooth ~ round, in the digestive track
EX: uterus, bladder, blood vesselsCardiac ~ round only on the heart
EX: heart
http://www.clccharter.org/donna/medschool/systems/system%20research/muscular/Muscular%20System/Muscular%20Facts.html
Muscle FatigueIs the physiological inability of a muscle to contract
Causes:
~Lack of oxygen to the muscle,
~Lack of ATP when exerting energy
~ Large accumulation to lactate
http://fastatforty.blogspot.com/2011/09/guest-blog-jonathan-toker-on-muscle.html
Effects of exercise on skeletal muscle
Regular exercise can increase muscle size , strength , endurance
Lowers children's risk of chronic pain in their future
Causes soreness
http://www.clccharter.org/donna/medschool/systems/system%20research/muscular/Muscular%20System/Muscular%20Facts.html
Interactions of Flexors and Extensors Flexor~ decreases angle between
two bones Extensor~ increases angle
between two bones Ligaments ~ connects bone to
bone Tendons ~connects muscle to
bonehttp://biology.clc.uc.edu/courses/bio105/muscles.htm
Connective tissues Loose connective~ fibers & many cell
types in gelatinous matrix, found in skin, & surrounding blood vessels, nerves, and organs.
Dense connectives~ bundles of parallel collagen fibers& fibroblasts, found in tendons& ligaments.
Cartilage ~Cartilage is made of collagen & elastin fibers embedded in a matrix glycoprotein & cells called chondrocytes, which was found in small spaces.
http://www.hartnell.edu/faculty/aedens/Bio6L/Bio6Lconnective.html
Function of Tendons Tendons connect muscle to
boneAlso, carry tensile forces from
muscle to bone They carry compressive forces
when wrapped around bone like a pulley
Contain: collagen fibrils, fibroblasts etc. http://www.bhpain.com/bursitis_tendonitis
Role of the diaphragm The diaphragm, located below the lungs,
is the major muscle of respiration. Upon inhalation, the diaphragm
contracts and flattens and the chest cavity enlarges.
Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.
http://pennstatehershey.adam.com/content.aspx?productId=28&pid=28&gid=000141
Disorder of the muscleMuscle dystrophy is a group of
inherited muscles diseases in which muscle fibers are unusually susceptible to damage
In the late stages of muscle dystrophy fat, connective tissues, often replace muscle fibers and other organs
Symptoms: muscle weakness ,apparent lack of coordination.
http://www.beltina.org/health-dictionary/muscular-dystrophy-symptoms-treatment.html
Biology.clc.uc.edu/courses/bio105/muscles.htmwww.shsu.edu./~bio-mlt/chapter10.htmlwww.unp.me/muscularsystemshs.wesport.k12.ct.us/anatomy.htmlwww.mayfieldclinic.com/PE-AnatSpine.htmwww.bing.com/health/article/mayo-MADS00200/Muscular-clystrophy?a=muiscular+dystrophy&pah=muscular+dystrophyHolt Moden Biology Textbook
Bibliography
Bibliography http://www.biology-online.org/dictionary/Muscle_fatigue
http://www.clccharter.org/donna/medschool/systems/system%20research/muscular/Muscular%20System/Muscular%20Facts.html
http://www.bbc.co.uk/science/humanbody/body/factfiles/skeletalsmoothandcardiac/heart_beat.shtml
http://www.beltina.org/health-dictionary/muscular-dystrophy-symptoms-treatment.html
http://www.rapidlearningcenter.com/biology/anatomy-physiology/04-Tissues-of-the-Human-Body.html
http://www.rapidlearningcenter.com/biology/anatomy-physiology/04-Tissues-of-the-Human-Body.html
http://www.engin.umich.edu/class/bme456/ligten/ligten.htm