Muscles, Part 1 - Muscle Cells: Crash Course Anatomy & Physiology #21
10:24
YouTubeCrashCourse
Muscles, Part 1 - Muscle Cells: Crash Course Anatomy & Physiology #21
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 ...
已浏览 776.9万 次2015年6月8日
Female Bodybuilders
THE BIGGEST FEMALE BODYBUILDERS
10:36
THE BIGGEST FEMALE BODYBUILDERS
YouTubeTrend Max
已浏览 30.3万 次2023年10月20日
Top 10 Most Extreme Female BodyBuilders
8:07
Top 10 Most Extreme Female BodyBuilders
YouTube4 Ever Green
已浏览 283.3万 次2016年10月20日
2024's Strongest Women: Top 5 Most Muscular Female Bodybuilders
16:29
2024's Strongest Women: Top 5 Most Muscular Female Bodybuilders
YouTubeJA Fitness
已浏览 1.8万 次2024年9月29日
热门视频
How To Build Muscle (Explained In 5 Levels)
21:55
How To Build Muscle (Explained In 5 Levels)
YouTubeJeff Nippard
已浏览 878万 次2021年7月22日
The Muscular System
8:28
The Muscular System
YouTubeProfessor Dave Explains
已浏览 136万 次2019年2月14日
Muscles, Part 2 - Organismal Level: Crash Course Anatomy & Physiology #22
10:41
Muscles, Part 2 - Organismal Level: Crash Course Anatomy & Physiology #22
YouTubeCrashCourse
已浏览 316万 次2015年6月15日
Female Vs Male Muscles
Top 7 MOST Beautiful Singers of the 90s-2000s: Then & Now 😱 Shocking Transformations
0:59
Top 7 MOST Beautiful Singers of the 90s-2000s: Then & Now 😱 Shocking Transformations
YouTubeColdstar Cinema
已浏览 388万 次2 周前
💈(ASMR) 2-Month Wait, But Worth It — Luxury Cut & Xtra Services by Fully Booked Japanese Lady Barber
1:06
💈(ASMR) 2-Month Wait, But Worth It — Luxury Cut & Xtra Services by Fully Booked Japanese Lady Barber
YouTubeYes Plz ASMR
已浏览 1344.2万 次2 周前
OBSESSED SHE RESPECTED THE IMAGE OF TINKERBELL #sabrinacarpenter
0:06
OBSESSED SHE RESPECTED THE IMAGE OF TINKERBELL #sabrinacarpenter
YouTubeMoment on Stage
已浏览 205.2万 次1 个月前