Skeletal muscles 2
Share your inquiries now with community members Click Here
Sign up Now
Lessons List | 22 Lesson
Comments
Related Courses in Medical
Course Description
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture and circulates blood throughout the body.The muscular systems in vertebrates are controlled through the nervous system although some muscles (such as the cardiac muscle) can be completely autonomous. Together with the skeletal system in the human, it forms the musculoskeletal system, which is responsible for movement of the body.
There are three distinct types of muscles: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles. Muscles provide strength, balance, posture, movement and heat for the body to keep warm.
There are about 690 muscles in the human body. A kind of elastic tissue makes up each muscle, which consists of thousands, or tens of thousands, of small muscle fibers. Each fiber comprises many tiny strands called fibrils. Impulses from nerve cells control the contraction of each muscle fiber.
This process consumes large amounts of adenosine triphosphate (ATP), the energy source of the cell. ATP binds to the cross-bridges between myosin heads and actin filaments. The release of energy powers the swiveling of the myosin head. When ATP is used, it becomes adenosine diphosphate (ADP), and since muscles store little ATP, they must continuously replace the discharged ADP with ATP. Muscle tissue also contains a stored supply of a fast-acting recharge chemical, creatine phosphate, which when necessary can assist with the rapid regeneration of ADP into ATP.
Calcium ions are required for each cycle of the sarcomere. Calcium is released from the sarcoplasmic reticulum into the sarcomere when a muscle is stimulated to contract. This calcium uncovers the actin-binding sites. When the muscle no longer needs to contract, the calcium ions are pumped from the sarcomere and back into storage in the sarcoplasmic reticulum.
Trends
MS Excel
Python programming language
SEO Google Digital Marketing
Excel Course Basic to Advanced
Learning English Speaking
Applied Linear Algebra Vectors Matrices and Least Squares
English Language
Cyber Security
C Game Programming development
AI Tools in 2024
Photoshop text masking effect methods
Facebook Ads for Shopify beginners
English Grammar basics to Advanced
Communication Skills
Soft Skills
Ecommerce business strategies for beginners
Magento Formation Français
E Commerce Business types for beginners
Communication Skills importance
Digital marketing essentials for beginners
Recent
Formation efficace à l écoute de l anglais des débutants aux experts
Fast Photo Tricks
Creating Category in shopify
Facebook Ads for Shopify beginners
Creating CRM Software for beginners
Social Media Management Tools strategies
Website audit tools for seo
Marketing Skills for beginners
Blogging Platforms to earn money
E Commerce Business types for beginners
Creating Facebook Ad account for beginners
Facebook Business Page Settings
Content Marketing strategy for beginners
Content marketing basics for beginners
Digital marketing essentials for beginners
creating ecommerce website using wordPress
Affiliate marketing benefits for beginners
GA4 Google Analytics Fundamentals
Instagram account types for beginners
creating Instagram business account for beginners