Which muscle originates from spinous processes C7-T1?

Master the Back Muscles: Origins, Insertions, Actions and Innervations with a comprehensive quiz. Engage with diverse question formats, including multiple choice and flashcards, each supplemented with hints and explanations. Ensure your readiness for academic and professional success!

Multiple Choice

Which muscle originates from spinous processes C7-T1?

Explanation:
Knowing where a muscle begins helps you distinguish muscles that move the same region. The rhomboid group retracts the scapula and downwardly rotates it. Rhomboid minor originates from the spinous processes of C7 and T1 (and the nearby lower part of the ligamentum nuchae) and inserts on the medial border of the scapula, above the scapular spine. Rhomboid major, by contrast, starts from T2–T5; levator scapulae starts from the transverse processes of C1–C4; and trapezius has a broader set of origins from the occipital region and down to T12. So the muscle with origins at C7–T1 is rhomboid minor. (Innervation for both rhomboids is the dorsal scapular nerve, C4–C5.)

Knowing where a muscle begins helps you distinguish muscles that move the same region. The rhomboid group retracts the scapula and downwardly rotates it. Rhomboid minor originates from the spinous processes of C7 and T1 (and the nearby lower part of the ligamentum nuchae) and inserts on the medial border of the scapula, above the scapular spine. Rhomboid major, by contrast, starts from T2–T5; levator scapulae starts from the transverse processes of C1–C4; and trapezius has a broader set of origins from the occipital region and down to T12. So the muscle with origins at C7–T1 is rhomboid minor. (Innervation for both rhomboids is the dorsal scapular nerve, C4–C5.)

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy