What is the action of the Clavotrapezius?

Its origin is the superior nuchal line and median dorsal line and its insertion is the clavicle. Its action is to draw the clavicle dorsally and towards the head.

What is the origin insertion and function of the cat masseter muscle?

Masseter muscle

Origin Superficial part: maxillary process of zygomatic bone, Inferior border of zygomatic arch (anterior 2/3) Deep part: deep/inferior surface of zygomatic arch (posterior 1/3)
Insertion Lateral surface of ramus and angle of mandible
Innervation Masseteric nerve of mandibular nerve (CN V3)

What is the trapezius muscle?

The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back. The trapezius (traps muscle) helps you move your head, neck, arms, shoulders and torso. It also stabilizes your spine and helps with posture.

What is the action of the Epitrochlearis in cats?

This muscle (located posterior to the humerus) functions to extend the forearm. It takes its origin from the scapula and inserts on the ulna. Immediately beneath the epitrochlearis is the long head of the triceps brachii.

What is the function of pectoralis major?

The pectoralis major extends across the upper part of the chest and is attached to a ridge at the rear of the humerus (the bone of the upper arm). Its major actions are adduction, or depression, of the arm (in opposition to the action of the deltoideus muscle) and rotation of the arm forward about the axis of the body.

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 biceps Brachii in cats?

flexes forearm & rotates it inward. pulls humerus medially. rotates humerus medially. flexes forearm.

How do you build your trapezius muscles?

5 best exercises to build bigger traps

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

What is the antagonist muscle to the trapezius?

Actions Rotation, retraction, elevation, and depression of scapula
Antagonist serratus anterior muscle, Latissimus dorsi, Pectoralis Major
Latin Musculus trapezius

What is the action of the triceps Brachii?

Function. It helps in extension of the elbow joint and also acts as an antagonist of the biceps and brachialis. The triceps brachii also helps to stabilize the shoulder by keeping the head of the humerus in its correct position in the shoulder joint.

What is the brachialis muscle?

The brachialis is an elbow flexor that originates from the distal anterior humerus and inserts onto the ulnar tuberosity. The brachialis is one of the largest elbow flexors and provides pure flexion of the forearm at the elbow. [2] It does not provide any supination or pronation of the forearm.

Where does the clavodeltoid muscle come from?

The clavodeltoid originates from the clavicle and inserts on the ulna. This muscle flexes the forearm. The clavotrapezius arises from the back of the skull and middorsal line of the neck and inserts on the clavicle.

Where is the acromiodeltoid located in the humerus?

The acromiodeltoid lies posterior to the clavodeltoid. It arises from the acromion process of the scapula and inserts on the spinodeltoid muscle. The spinodeltoid arises from the scapula spine and inserts on the proximal portion of the humerus.

Where does the clavotrapezius originate in the neck?

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. The clavodeltoid originates from the clavicle and inserts on the ulna.

What is the depression between the deltoid and pectoralis muscles called?

Due to the different courses of the muscle fibers, the insertion has a recess which is open to the top preventing the muscle from overstretching. The triangular depression between the pectoralis major muscle, deltoid muscle and clavicle is called infraclavicular fossa (Mohrenheim’s fossa).