What is the latissimus dorsi muscle origin and function?
Latissimus dorsi muscle
| Origin | Vertebral part: Spinous processes of vertebrae T7-T12, Thoracolumbar fascia Iliac part: Posterior third of crest of ilium Costal part: Ribs 9-12 Scapular part: Inferior angle of scapula |
|---|---|
| Functions | Shoulder joint: Arm internal rotation, Arm adduction, Arm extension; Assists in respiration |
What is the origin of the latissimus dorsi muscle quizlet?
The latissimus dorsi muscle originates on the: posterior crest of the ilium.
Where does the latissimus dorsi muscle attach?
The muscle has attachments to the lower six vertebral spinous processes anterior to the attachment of the trapezius on the spinous processes. Through the thoracolumbar fascia latissimus dorsi attaches to the lumbar and sacral spinous processes (T6 to S5 levels), and the supraspinous ligament.
What is the origin and insertion of the serratus anterior?
The serratus anterior (SA) is a fan-shaped muscle that originates on the superolateral surfaces of the first to eighth or ninth ribs at the lateral wall of the thorax and inserts along the superior angle, medial border, and inferior angle of the scapula.
What is the origin and insertion of infraspinatus?
Infraspinatus is a thick triangular muscle that occupies the majority of the dorsal surface of the scapula….Infraspinatus muscle.
| Origin | Infraspinous fossa of scapula |
|---|---|
| Insertion | Greater tubercle of humerus |
| Action | Shoulder joint: Arm external rotation; Stabilizes humeral head in glenoid cavity |
What is the insertion of the pectoralis major quizlet?
Origin: Ribs 3-5 near costal cartilages, Inserts medial border and superior surface of coracoid process of scapula, innervation Medial Pectoral nerve, Fx, Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall. You just studied 4 terms!
What is the origin of the pectoralis major?
Pectoralis major muscle
| Origin | Clavicular part: anterior surface of medial half of clavicle Sternocostal part: anterior surface of sternum, Costal cartilages of ribs 1-6 Abdominal part: Anterior layer of rectus sheath |
|---|---|
| Insertion | Crest of greater tubercle of humerus |
What is the origin and insertion of the supraspinatus muscle?
The supraspinatus muscle arises from the supraspinous fossa, a shallow depression in the body of the scapula above its spine. The supraspinatus muscle tendon passes laterally beneath the cover of the acromion. The supraspinatus tendon is inserted into the superior facet of the greater tubercle of the humerus.
What is an origin and insertion of a muscle?
A skeletal muscle attaches to bone (or sometimes other muscles or tissues) at two or more places. If the place is a bone that remains immobile for an action, the attachment is called an origin. If the place is on the bone that moves during the action, the attachment is called an insertion.
What is the origin and insertion for the pectoralis major?
The pectoralis major has a broad origin, based on which it is divided into three parts: clavicular part, sternocostal part and abdominal part. All three parts converge laterally and insert onto the greater tubercle of humerus.
What is the origin of pectoralis major quizlet?
What is the insertion of the pectoralis muscle?
Coracoid process
Pectoralis minor/Insertions
What is the origin and insertion of the gluteus maximus?
Gluteus Maximus. The Gluteus Maximus muscles originate from the Posterior portion of the Ilium, the posterior part of the Iliac Crest, the Sacrum and from the side of the coccyx. The insertion attachment points of the Gluteus Maximus are as follows, the Gluteal Tuberosity of femur and the anterior of the Tibial Condyle via the Iliotibal tract.
What is meant by the origin and insertion of muscles?
Origin and insertion are two ends of a muscle that attach to a bone. Origin is the attachment end to the immovable bone while insertion is the attachment end to a more movable bone. So, this is the key difference between origin and insertion. Origin is closer to the centre of the body while insertion is furthest to the centre of the body.
What is the origin and insertion of the psoas muscle?
The psoas major is divided into a superficial and deep part. The deep part originates from the transverse processes of lumbar vertebrae I-V. The superficial part originates from the lateral surfaces of the last thoracic vertebra, lumbar vertebrae I-IV, and from neighboring intervertebral discs.
What does a pulled lat muscle feel like?
If you’ve injured your lats while doing a specific exercise, you might identify the problem right away. Symptoms of a pulled muscle in the back can include sharp pain, bruising or redness from blood vessel damage, swelling, muscle spasms, difficulty moving or weakness.