Muscle cells can come from two lineages in the somite. Limb and body muscle develop from hypaxial muscle in the lateral regions of the somite. Back muscle develops from epaxial muscle in the dorsal regions of the somite. Muscle fibres have hundreds of nuclei and function as a syncytium.

Learning Outcome: Students design and conduct an investigation on muscle fatigue in order to surface the roles of the respiratory and circulatory systems in maintaining a dynamic equilibrium.

We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the sliding filament model. Your skeletal muscles are constructed like a rope made of bundles of protein fibers, and the smallest strands are your actin and myosin myofilaments. It's their use of calcium and ATP that causes the binding and unbinding that makes sarcomeres contract and relax.

Chapters:
Introduction: Muscle Love
Smooth, Cardiac, and Skeletal Muscle Tissues
Structure of Skeletal Muscles
Protein Rules
Sarcomeres Are Made of Myofilaments: Actin & Myosin
Sliding Filament Model of Muscle Contraction
Review
Credits

Hank calls in a friend to do his push-ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three-phase cycle of muscle twitches, and how the strength and frequency of an impulse affect the strength and duration of a contraction. This episode also explains twitch summation, tetanus, and isotonic vs. isometric movements.

Chapters:
Introduction: Heavy Lifting
How Muscles Push & Pull
Functional Muscle Groups: Prime Movers, Antagonists, and Synergists
Motor Units
3 Phases of Muscle Twitches: Latent, Contraction, Relaxation
Graded Muscle Responses
Temporal Summation vs Tetanus
Multiple Motor Unit Summation (Recruitment)
The Size Principle of Recruitment
Isotonic vs Isometric Movements
Review
Credits

In this video we take a look at the best ways to study the muscular system.

Lesson 8 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

Moving from the histology of skeletal muscle, now we need to know about cardiac muscle tissues and smooth muscle tissue.

Lesson 3 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

No conversation about the muscular system is compete without looking at fascia. In this lecture we look at the structure and function of this often unappreciated structure.

Lesson 6 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

In this video we take a quick overview of the muscular system and talk about the functions of the skeletal muscles.

Lesson 5 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

Lean what the motor unit is and how it makes muscles fibers contract.

Lesson 3 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

Welcome to the Muscular System! In this video we look at the histology of skeletal muscle tissue and the functions of skeletal muscle.

Lesson 1 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

This video covers the muscles of facial expression.

Special thanks to Visible Body for allowing me to use screen captures of their amazing product.

Lesson 9 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

This video covers the muscles of mastication.

Special thanks to Visible Body for allowing me to use screen captures of their amazing product.

Lesson 10 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

In this video we take a closer look at the histology of skeletal muscle and the sarcomere.

Lesson 2 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

In this video we take a look at the types of muscle contractions: isometric, isotonic, concentric, and eccentric. We also cover the relationship muscles have with each other, specifically the agonist, synergists, antagonist, and fixator.

Lesson 7 in our Muscular System series. This is part of our Anatomy and Physiology lecture series.

If this video helps you please be sure to LST -like subscribe and tell your friends. Your support help us make more videos. For the complete series please visit http://mrfordsclass.net/

Videos in the skeletal system series:
-Muscle Tissue (09:01): http://youtu.be/RDqUg7ERwDQ
-Skeletal Muscle (09:02): http://youtu.be/NBuReVewhws
-Motor Unit and Muscle Fibers (09:03): http://youtu.be/f5wnaf96TH4
-Cardiac and Smooth Muscle (09:04): http://youtu.be/isOWu7Ts-vs
-Introduction to the Muscular System (09:05): http://youtu.be/F8DzB7hcLA4
-Fascia (09:06): http://youtu.be/K1zkJySBhlU
-Types of Muscle Contraction (09:07): http://youtu.be/i2VG3HGBrBw
-Before We Start (09:08): http://youtu.be/HXH7tQ2Cq1o
-Muscles of Facial Expression (09:09): http://youtu.be/UB73SMxDv-o
-Muscles of Mastication (09:10): http://youtu.be/oOiUJ6b6-pI

This activity (explanation game) is used to help propose ways to reduce or prevent health problems within the cardiovascular system.

Short Description:
In this survey text, directed at those not majoring in biology, we dispel the assumption that a little learning is a dangerous thing. We hope that by skimming the surface of a very deep subject, biology, we may inspire you to drink more deeply and make more informed choices relating to your health, the environment, politics, and the greatest subject that are all of us are entwined in, life itself.

Long Description:
In this survey text, directed at those not majoring in biology, we dispel the assumption that a little learning is a dangerous thing. We hope that by skimming the surface of a very deep subject, biology, we may inspire you to drink more deeply and make more informed choices relating to your health, the environment, politics, and the greatest subject that are all of us are entwined in, life itself.

NSCC Human Biology by Rhea Langille is a condensed and adapted version of the open textbook Concepts of Biology—1st Canadian Edition by Charles Molnar and Jane Gair. Concepts of Biology—1st Canadian Edition is an adaptation of Concepts of Biology created by Rice University & OpenStax.

Word Count: 34095

ISBN: 978-1-990641-03-9

(Note: This resource's metadata has been created automatically by reformatting and/or combining the information that the author initially provided as part of a bulk import process.)

These educational resources have been developed so that primary school teachers can introduce scientific concepts related to the field of Nanomedicine.The contents are a tool for teachers and are intended to be a guide for classroom work. These are contents designed to be adapted according to the needs and criteria of each teacher. They have been developed taking into account the spanish educational curriculum and can freely be adapted to other curricular programmes.This project has been promoted by the Spanish Nanomedicine Platform (Nanomed Spain). Nanomed Spain brings together the main Spanish stakeholders in research, industry and administration in the field of Nanomedicine, in order to promote a common strategy to accelerate the development and introduction of innovative, more effective and personalized therapies in the healthcare system. One of the aims of the platform is to raise awareness of the research and potential of nanomedicine in society by promoting educational projects such as this one.Different entities have participated in the development of this project:Funding: Ministry of Science and InnovationTechnical and didactic support: Institute of Bioengineering of CataloniaEducational advice and pilot test: Gayarre School, Barcelona's public school for infant and primary education within the framework of the Aliances Magnet project.Original content development: Eduscopi

The respiratory tract begins with the nose which includes the external nose, internal nasal cavities and paranasal sinuses. As well as being vital for transport of gases to the lower respiratory tract, the nasal cavity is also the site for one of the special senses - Olfaction.