Table of Contents
- 1 What muscle is synergist to coracobrachialis?
- 2 What is the antagonist muscle to the deltoid?
- 3 What is the antagonist muscle of the supraspinatus?
- 4 What muscles extend the forearm?
- 5 What is the antagonist of the subscapularis?
- 6 What muscles are antagonist?
- 7 What is the action of the coracobrachialis?
- 8 What is the second part of the brachialis?
What muscle is synergist to coracobrachialis?
pectoralis minor
The coracobrachialis has its origin on the coracoid process and its insertion on the inner surface of the humerus. It contributes to adduction, horizontal adduction, and flexion of the humerus, enabling the arm to swing forwards, and it is a synergist of the pectoralis minor.
What is the action of the Coracobrachialis muscle?
The action of the coracobrachialis is to flex and adduct the arm at the glenohumeral joint (shoulder joint). Also, the coracobrachialis resists deviation of the arm from the frontal plane during abduction.
What is the antagonist muscle to the deltoid?
| Deltoid muscle | |
|---|---|
| Actions | shoulder abduction, flexion and extension |
| Antagonist | Latissimus dorsi |
| Identifiers | |
| Latin | Musculus deltoideus |
What is the opposing muscle of the brachialis?
Triceps brachii is the antagonist and brachialis is a synergist with biceps brachii.
What is the antagonist muscle of the supraspinatus?
The supraspinatus: agonistic: anterior deltoid, middle deltoid, lower trapezius, middle trapezius, teres minor, levator scapulae. antagonistic: latissimus dorsi, pectoralis major, pectoralis minor, serratus anterior, posterior deltoid, infraspinatus, rhomboid major, rhomboid minor.
What is the antagonist of elbow flexion?
tricep muscle
During elbow flexion where the bicep is the agonist, the tricep muscle is the antagonist.
What muscles extend the forearm?
The triceps brachii extend the forearm.
What is the action of the subscapularis muscle?
Action. Primary function is internal rotation of the humerus. It helps in shoulder adduction and extension in certain positions.
What is the antagonist of the subscapularis?
The first article in the series discussed the subscapularis muscle, the main shoulder internal rotator. Now we’re on to the antagonist muscles of the subscapularis, the infraspinatus and teres minor. The infraspinatus arises in a trough below the scapular spine, hence its name (“infra” means below).
What is the gluteus maximus antagonist?
Table 2
| Muscle | Action | Antagonist |
|---|---|---|
| Gluteus maximus | Hip extension | Psoas, Rectus Femoris |
| Gluteus medius | Hip abduction | Psoas, Adductors |
What muscles are antagonist?
Examples of Antagonistic Muscles
- Biceps and triceps.
- Gluteus maximum and hip flexors.
- Hamstrings and quadriceps.
- Pectoralis major and latissimus dorsi.
- Gastrocnemius and tibialis anterior.
- Abductor and adductor.
What is the antagonist of elbow extension?
The triceps is the antagonist because it is on the opposite side of the elbow joint and has the potential to oppose the elbow flexion. Now, if we are talking about active elbow extension, the triceps is the agonist because it causes the action, and the biceps is the antagonist.
What is the action of the coracobrachialis?
Coracobrachialis Muscle – Attachments, Action & Innervation. Coracobrachialis Muscle. Coracobrachialis is one of the three muscles that comprise the anterior compartment of the arm. Its action is mainly antagonist to the action of the Deltoid.
What nerve innervates the coracobrachialis muscle?
The coracobrachialis muscle is innervated by the musculocutaneous nerve (C5-C7) a branch of the lateral cord of the brachial plexus. The coracobrachialis muscle receives its blood supply by the muscular branches of brachial artery. The additional supply comes from the anterior circumflex humeral and thoracoacromial arteries.
What is the second part of the brachialis?
The second part of the name of this muscle, ‘brachialis’ refers to the attachment at the other end of the muscle on the shaft of the humerus, the upper arm bone. Finally, brachialis comes from the word brachium which means arm. Where does the coracobrachialis muscle attach?