What does the Spinotrapezius muscle do?

Spinotrapezius, also called thoracic trapezius, is the most posterior of the three trapezius muscles. Its origin is the neural spines of the thoracic vertebrae and its insertion is the scapular fascia. Its action is to draw the scapula to the dorsal and caudal regions.

Do humans have Spinotrapezius?

5. clavotrapezius, acromiotrapezius, spinotrapezius – three muscles in cat, one muscle in human (trapezius).

Do cats have deltoid muscles?

Deltoid. The deltoid muscles lie just lateral to the trapezius muscles, originating from several fibers spanning the clavicle and scapula, converging to insert at the humerus. Anatomically, there are only two deltoids in the cat, the acromiodeltoid and the spinodeltoid.

What does the Clavobrachialis muscle do?

Human information: This is one of the five muscles in the group we refer to as the muscles that move the arm (not including the rotator cuff muscles).

What is the action of Spinotrapezius in cat?

The spinotrapezius arises from the spinous processes of thoracic vertebrae and inserts on the fascia covering the scapular muscles. Its action is to adduct the scapula and pull it posteriorly.

What is the best exercise for the trapezius muscle?

5 best exercises to build bigger traps

• Shrugs. It wouldn’t be a list of the best exercises for traps if we didn’t mention shrugs.
• Barbell Deadlift.
• Rack pulls.
• Upright rows.
• Face pulls.

Why is it called Acromiotrapezius?

Acromiotrapezius is the middle trapezius muscle. It covers the dorsal and lateral surfaces of the scapula. Its origin is the neural spines of the cervical vertebrae and its insertion is in the metacromion process and fascia of the clavotrapezius.

What does the Clavotrapezius do in cats?

The clavotrapezius arises from the back of the skull and middorsal line of the neck and inserts on the clavicle. Its action is to extend the humerus in a forward direction.

What is teres major muscle?

Teres major is a small muscle that runs along the lateral border of the scapula. It forms the inferior border of both the triangular space and quadrangular space. It’s sometimes called “lat’s little helper” because of its synergistic action with the latissimus dorsi.

What is the action of Acromiotrapezius on cat?

Its action is to extend the humerus in a forward direction. The acromiotrapezius (which arises on the middorsal line of the neck and thorax and inserts on the metacromion and spine of the scapula) adducts the scapula.

How to study cat muscle origin insertion and function?

Start studying Cat Muscle Origin, Insertion, Function. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search Browse Create

Where are the cat muscles located in the back?

The spinodeltoid arises from the scapula spine and inserts on the proximal portion of the humerus. The acromiodeltoid and spinodeltoid work synergistically to flex the humerus and rotate it outward. There are two back muscles associated with these two groups of muscles; they are the levator scapulae ventralis and the latissimus dorsi.

Where does the spinotrapezius action take place?

Spinotrapezius Action Abducts arms Latissimus dorsi origin lumbar vertebrae, iliac crest Latissiums dorsi insertion humerus Latissimus dorsi action adducts, depresses, Extends, adducts, and medially rotates the arm; draws the shoulder downward and backward

Where are the triceps located on a cat?

Triceps brachii (lateral head) 11. Triceps brachii (long head) The two major muscle groups of the back and shoulder of the cat are the trapezius group and the deltoid group. The clavotrapezius arises from the back of the skull and middorsal line of the neck and inserts on the clavicle.