The Pec Major: Part 1 - Anatomy of a Beautiful Muscle 💪✨ The Anatomy 🔬 The pec major has 3 heads: 1️⃣ Clavicular head (upper pec) – Attaches to medial half of clavicle 2️⃣ Sternocostal head (mid pec) – Attaches to sternum ribs 2-6 3️⃣ Abdominal head (lower pec) – Attaches to rectus sheath (can vary or be absent!) All three converge to insert on the humerus (arm bone)! The Functions 💪 All 3 heads work together for: ✅ Internal rotation of shoulder ✅ Adduction ✅ Horizontal adduction (the most lo
4:18
The Pec Major: Part 1 - Anatomy of a Beautiful Muscle 💪✨ The Anatomy 🔬 The pec major has 3 heads: 1️⃣ Clavicular head (upper pec) – Attaches to medial half of clavicle 2️⃣ Sternocostal head (mid pec) – Attaches to sternum ribs 2-6 3️⃣ Abdominal head (lower pec) – Attaches to rectus sheath (can vary or be absent!) All three converge to insert on the humerus (arm bone)! The Functions 💪 All 3 heads work together for: ✅ Internal rotation of shoulder ✅ Adduction ✅ Horizontal adduction (the most lo
38.3K views3 months ago
FacebookInstitute of Human Anatomy
Why Stretch the Pec Major Before Exercise? The pectoralis major often becomes shortened and overactive due to poor posture, desk work, and repetitive pressing movements. Stretching it prior to exercise helps restore shoulder mobility, improves scapular positioning, and reduces compensatory tension in the neck and upper traps. A properly lengthened pec major also allows for better thoracic extension and arm mechanics—critical for safe, efficient movement in both pushing and pulling exercises. . W
0:13
Why Stretch the Pec Major Before Exercise? The pectoralis major often becomes shortened and overactive due to poor posture, desk work, and repetitive pressing movements. Stretching it prior to exercise helps restore shoulder mobility, improves scapular positioning, and reduces compensatory tension in the neck and upper traps. A properly lengthened pec major also allows for better thoracic extension and arm mechanics—critical for safe, efficient movement in both pushing and pulling exercises. . W
4.8K viewsMay 10, 2025
FacebookPain Posture Performance
Maximize Chest Gains: Master the Pec Deck Exercise – Fitness Volt
Maximize Chest Gains: Master the Pec Deck Exercise – Fitness Volt
Aug 12, 2021
fitnessvolt.com
How To Stretch Pec Minor and Pec Major Muscles | 4 Best Pec Stretches
How To Stretch Pec Minor and Pec Major Muscles | 4 Best Pec Stretches
May 14, 2022
m4lpt.com
Why do you feel your biceps in a pec deck fly?”Let’s understand. The pec deck fly is meant to target horizontal adduction—mainly the pectoralis major.During a pec deck fly, the machine applies resistance perpendicular to your forearms (especially in machines where the arms move in an arc). This resistance creates external torque at the elbow joint, even though you’re not actively flexing or extending the elbow.1. Elbow Joint Torque- Your forearm acts as a lever, and the line of force (resistance
1:28
Why do you feel your biceps in a pec deck fly?”Let’s understand. The pec deck fly is meant to target horizontal adduction—mainly the pectoralis major.During a pec deck fly, the machine applies resistance perpendicular to your forearms (especially in machines where the arms move in an arc). This resistance creates external torque at the elbow joint, even though you’re not actively flexing or extending the elbow.1. Elbow Joint Torque- Your forearm acts as a lever, and the line of force (resistance
18.3K viewsApr 8, 2025
FacebookOm Bisht
Why do you feel your biceps in a pec deck fly?” Let’s understand. The pec deck fly is meant to target horizontal adduction—mainly the pectoralis major. During a pec deck fly, the machine applies resistance perpendicular to your forearms (especially in machines where the arms move in an arc). This resistance creates external torque at the elbow joint, even though you’re not actively flexing or extending the elbow. 1. Elbow Joint Torque- Your forearm acts as a lever, and the line of force (resista
2:03
Why do you feel your biceps in a pec deck fly?” Let’s understand. The pec deck fly is meant to target horizontal adduction—mainly the pectoralis major. During a pec deck fly, the machine applies resistance perpendicular to your forearms (especially in machines where the arms move in an arc). This resistance creates external torque at the elbow joint, even though you’re not actively flexing or extending the elbow. 1. Elbow Joint Torque- Your forearm acts as a lever, and the line of force (resista
69.4K viewsApr 8, 2025
FacebookOm Bisht Fitness Coach
Pectoralis Major Muscle Anatomy - Bodyworks Prime
Pectoralis Major Muscle Anatomy - Bodyworks Prime
Nov 18, 2021
bodyworksprime.com
0:19
Understanding Pecs Muscle Anatomy and Injury Insights
174.3K viewsMar 25, 2025
TikTokmajorpectoralis
6:00
Pectoralis major muscle
Nov 3, 2023
kenhub.com
1:08
How To Train Pecs
3K views3 weeks ago
YouTubeJacob Zemer
0:06
Abs, Pecs, or Biceps: The Ultimate Fitness Debate
1.1K views3 months ago
TikTokmusclemenshop00
Low Pec Guide 🔥 “But there’s no such thing as the low pecs!” 🥴 yes there is. The lowest costal fibers of the pec major do indeed exist AND you can target them — apart from the middle and upper pec Pulling your arms down from overhead trains the low pecs & some other muscles (like the triceps long head & rear delts). So, if you’d like to add some direct work for them into your program, that’s how you do it. Everting else will involve the other parts of your pec to varying degrees 👌 𝗢𝘂𝘁𝗳𝗶�
78.6K viewsAug 30, 2024
TikTokdavis.diley
0:38
Prone Chest Stretch
211.9K viewsApr 5, 2017
YouTube[P]rehab
6:21
Pectoralis (PECS) blocks I & II
324.2K viewsOct 12, 2020
YouTubeRegional Anesthesiology and Acute Pain Medic…
2:49
Pectoralis Minor Stretch
3.9K viewsJul 14, 2021
YouTubePsoas Massage + Bodywork
1:29
Pectoral muscles scanning
15K viewsAug 29, 2017
YouTubemadan.narayanan
10:53
Pec Tears and Bench Press (WARNING!)
1.1M viewsMar 28, 2021
YouTubeATHLEAN-X™
10:12
Pec Minor Stretch (Release Tight Chest)
260K viewsOct 27, 2020
YouTubePostureFlow
1:07
Infrapinatus & Pectoralis Minor: Muscle Motion & Anatomy
75.2K viewsJul 15, 2014
YouTubeMuscle & Motion
4:58
Pectoralis Minor | Trigger Point Therapy | Anatomy Tutorial
15.1K viewsFeb 1, 2021
YouTubeNAT Global Campus
0:55
How to do a Static Stretch - Pectorals
28.6K viewsAug 31, 2014
YouTubeNational Academy of Sports Medicine (NASM)
0:40
How to do a pec stretch
75.7K viewsAug 20, 2015
YouTubeRehab My Patient
1:20
Pectoralis Major: Muscle Motion, Anatomy & Kinesiology
56.5K viewsJul 14, 2014
YouTubeMuscle & Motion
3:21
Home "Inner" Pec Exercises (4 BEST!)
2.5M viewsDec 23, 2016
YouTubeATHLEAN-X™
5:19
Stop Stretching Your Pecs Like This!
330.9K viewsAug 8, 2019
YouTubeSquat University
5:43
The MIDDLE Chest Solution (GET DEFINED PECS!)
1.6M viewsMay 13, 2021
YouTubeATHLEAN-X™
1:13
Pectoralis minor stretch on wall
35.4K viewsFeb 13, 2012
YouTubeIntegrative Personal Training
13:08
Anatomy | Muscles of Pectoral Region - A Quick Overview
322.6K viewsMar 15, 2021
YouTubeDoctor Speaks
2:33
Muscle Length Assessment: Pec Major-Clavicular v Sternal
21.6K viewsJan 22, 2018
YouTubesportschiroinstitute
2:01
Two Minutes of Anatomy: Pectoralis Minor
18.9K viewsFeb 25, 2020
YouTubeDr Donald A Ozello DC, NSCA-CPT
See more
Static thumbnail place holder