𝟎𝟒. 𝐒𝐜𝐚𝐩𝐮𝐥𝐚𝐫 𝐫𝐞𝐠𝐢𝐨𝐧 (𝐈𝐈) (𝐃𝐞𝐥𝐭𝐨𝐢𝐝 𝐚𝐧𝐝 𝐬𝐞𝐫𝐫𝐚𝐭𝐮𝐬 𝐚𝐧𝐭. 𝐦𝐮𝐬𝐜𝐥𝐞𝐬, 𝐚𝐱𝐢𝐥𝐥𝐚𝐫𝐲 𝐧. 𝐚𝐧𝐝 𝐢𝐧𝐭𝐞𝐫𝐦𝐮𝐬𝐜𝐮𝐥𝐚𝐫 𝐬𝐩𝐚𝐜𝐞𝐬)

This video explains the anatomy of the scapular region, including the deltoid muscle, subdeltoid bursa (subacromial), deltopectoral groove, axillary nerve, shoulder extension, serratus anterior muscle, and intermuscular spaces. (including MCQ, practical, and interactive questions).

* 𝐂𝐡𝐚𝐩𝐭𝐞𝐫𝐬 (𝐭𝐢𝐦𝐞𝐬𝐭𝐚𝐦𝐩𝐬) الفصول (الطوابع الزمنية)
00:00 - Intro (مقدمة)
00:21 - Content of the lecture (محتوى)
00:53 - Deltoid
14:17 - Subdeltoid bursa
17:35 - Deltopectoral groove
19:06 - Axillary nerve
22:44 - Applied anatomy (Flat shoulder)
26:03 - Serratus anterior muscle
36:24 - Applied anatomy (Winging of the scapula)
39:13 - MCQ
40:19 - Intermuscular spaces (Site, boundaries, and contents)
49:07 - MCQ
51:21 - Practical questions
53:57 - Interactive questions

* 𝐒𝐡𝐨𝐫𝐭 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬:
- What are the 𝗮𝗰𝘁𝗶𝗼𝗻𝘀 of the muscles that act on the shoulder?
𝒜𝓃𝓈𝓌𝑒𝓇:
1. Deltoid
- Anterior fibers ----- Flexion + Medial rotation.
- Middle fibers ------- Abduction from 18º to 90º.
- Posterior fibers ---- Extension + Lateral rotation.
(deltoid produces 𝐀𝐋𝐋 movements of the shoulder joint 𝑬𝑿𝑪𝑬𝑷𝑻 adduction)
2. Subscapularis - Adduction and medial rotation of the shoulder.
3. Supraspinatus - Abduction (0º – 18º)
4. Infraspinatus - Lateral rotation.
5. Teres minor - Lateral rotation + Adduction.
6. Teres major - Medial rotation + Adduction + Extension.
7. Serratus anterior - Protraction of the scapula (forward movement of the scapula).
- The lower fibers of the serratus anterior + upper fibers of the trapezius rotate the scapula to produce abduction 𝟗𝟎º 𝐭𝐨 𝟏𝟖𝟎º (to elevate the arm above the head).

* 𝐌𝐂𝐐:
1. Paralysis of the deltoid muscle results in which of the following?
A. Loss of abduction of the arm from zero to 18°
B. Loss of abduction of the arm from 18° – 90°
C. Loss of abduction of the arm from zero to 90°
D. Loss of abduction of the arm from 90° – 180°

2. A patient injured the muscle that is an antagonist (has an opposing action) to the serratus anterior muscle, which is the primary protractor of the scapula. Which muscle is injured?
A. Levator scapula
B. Rhomboid major
C. Pectoralis minor
D. Supraspinatus

3. The root value of the axillary nerve is which of the following?
A. C. 5,6,7,8 & T. 1
B. C. 5,6,7
C. C. 5,6
D. C. 5

4. Which nerve is probably damaged if a patient can’t abduct the arm up to 900?
A. Axillary
B. Radial
C. Musculocutaneous
D. Median

5. Which of the following nerves gives a motor supply to the deltoid muscle?
A. Axillary nerve
B. Ulnar nerve
C. Musculocutaneous nerve
D. Radial nerve

* 𝐌𝐚𝐭𝐜𝐡𝐢𝐧𝐠 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬:
- Write the numbers of the items in the right column beside their matching items in the left column:
𝓜𝓾𝓼𝓬𝓵𝓮 𝓝𝓮𝓻𝓿𝓮 𝓢𝓾𝓹𝓹𝓵𝔂
....... A. Deltoid 1. Musculocutaneous nerve
....... B. Infraspinatus 2. Suprascapular nerve
....... C. Teres minor 3. Medial pectoral nerve
....... D. Serratus anterior 4. Long thoracic nerve
....... E. Triceps 5. Radial nerve
....... F. Coracobrachialis 6. Axillary nerve
7. Median nerve
8. Ulnar nerve

😂💞 🤣 𝓦𝓪𝓲𝓽𝓲𝓷𝓰 𝓕𝓸𝓻 𝓨𝓸𝓾𝓻 𝓐𝓷𝓼𝔀𝓮𝓻 😂💞 🤣

* 𝐅𝐨𝐫 𝐜𝐨𝐧𝐭𝐚𝐜𝐭:
📌𝐄𝐦𝐚𝐢𝐥: [email protected]
📌𝐅𝐚𝐜𝐞𝐛𝐨𝐨𝐤 𝐩𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐚𝐜𝐜𝐨𝐮𝐧𝐭:   / drayman.khanfour  
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📌𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 𝐜𝐡𝐚𝐧𝐧𝐞𝐥: https://t.me/+k-LcyYc-0WsyNDg0
📌𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 𝐠𝐫𝐨𝐮𝐩: https://t.me/+S-dZx8Sf-LBiOWE0
📌𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:   / dr_aymn  
📌𝐘𝐨𝐮𝐓𝐮𝐛𝐞 𝐜𝐡𝐚𝐧𝐧𝐞𝐥 𝐰𝐞𝐛𝐬𝐢𝐭𝐞 𝐥𝐢𝐧𝐤:    / @dr.ayman_khanfour  
📌𝐌𝐨𝐛𝐢𝐥𝐞 (𝐚𝐧𝐝 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩): +20 1223815866

* 𝐇𝐚𝐬𝐡𝐭𝐚𝐠:
#upper_limb
#intermuscular_spaces
#scapular_muscles