origin

Examples of origin in the following topics:

• Muscles of the Wrist and Hand

  • Attachments - Originates from the ulna and attaches to the radius.
  • Attachments - Originates from the humerus and attaches to the ulna.
  • Extensor Digiti Minimi – Originates from the extensor digitorum.
  • Attachments - Originates from the wrist and attaches to the thumb.
  • Attachments - Originates from the wrist and attaches to the thumb.

• Posterior Muscles

  • Attachments - Originates from the spine and attaches to ribs 9 through 12.
  • Attachments – Originates from the upper spine and attaches to the skull.
  • All three originate from a common tendon associated with the pelvis.
  • Attachments - A broad origin on the upper regions of the spine, with each origin attaching several vertebrae higher or to the skull.
  • Attachments – A broad origin up the length of the spine, with each origin attaching several vertebrae higher.

• Neck Muscles

  • It originates from the mandible and attaches to the hyoid bone.
  • Attachments – Originates from the upper spine and attaches to the skull.
  • Attachments - Originates from the spine and attaches several vertebrae higher.
  • Attachments - A broad origin on the upper regions of the spine, with each origin attaching several vertebrae higher or to the skull.
  • Attachments – A broad origin up the length of the spine, with each origin attaching several vertebrae higher.

• Muscles that Cause Movement at the Foot

  • Attachments - Originates from the heel and attaches to the toes.
  • Attachments - Originates from the fibula and attaches to the big toe.
  • Attachments - Originates from the heel and attaches to the big toe.
  • Attachments - Originates from the heel and attaches to the little toe.
  • Attachments - Originates from the tendons of flexor digitorum longus.

• Clavicle

  • The shaft of the clavicle acts as the origin and attachment point for numerous muscles and ligaments.
  • At the medial end of the shaft the pectoralis major originates from the anterior surface, the posterior surface gives origin to the sternohyoid muscle and the superior surface the sternocleidomastoid muscle.
  • Laterally the deltoid muscle originates from the anterior surface and the trapezius muscle attaches to the posterior surface at the trapezoid line.

• Ischium

  • The body contains a prominent spine that is the origin for the gemellus superior muscle.
  • It is the partial origin for the obturator internus and obturator externus muscles.
  • Posteriorly the ramus forms a large swelling termed the tuberosity of the ischium, or ischial tuberosity, which supports weight while sitting and is the origin for the gemellus inferior and adductor magnus muscles.
  • It is the partial origin for the gracillis and adductor magnus muscles.

• Anterior Muscles

  • Attachments – The clavicular region originates from the clavicle and the sternocostal region originates from the sternum and the fascia of the oblique muscles of the abdomen.
  • Attachments – The pectoralis minor originates from the third to fifth ribs and attaches to the scapula.
  • Relaxes and returns to original shape, reducing the volume of the thoracic cavity.
  • Attachments – Originates from the pelvis and thoracolumbar fascia, running through the back.
  • Attachments – Originates from the pubis and attaches to the linea alba.

• Muscles that Cause Movement at the Hip Joint

  • Attachments - Originates from the pelvis and attaches to the femur.
  • Attachments – Originates from the pubis and attaches to the femur.
  • Attachments – Originates from the pubis and attaches to the femur.
  • Attachments – Originates from the pubis and attaches to the femur.
  • Attachments – Originates from the pubis and attaches to the tibia.

• Scapula

  • The serratus anterior originates from the costal surface, which also provides an attachment for the subscapularis muscle.
  • The dorsal surface gives origin to the supraspinatus and infraspinatus muscles, and inferiorly to the teres minor and major.
  • It is divided by a ridge-like structure called the spine of the scapula, from which the deltoid and trapezius muscles originate.
  • Immediately below the glenoid cavity is the infraglenoid tuberosity, which is the origin for the long head of the triceps brachii.
  • Immediately above the glenoid cavity is the supraglenoid tubercle and its associated hook-like coracoid process, from which the long and short heads of the biceps brachii originate.

• Muscles of the Shoulder

  • Attachments – The trapezius originates from the skull and spine of the upper back and neck.
  • Latissimus Dorsi – The latissimus dorsi originates from the lower back and covers a wide area.
  • Intrinsic muscles originate from the scapula or clavicle and attach to the humerus.
  • Attachments – Originates from the posterior of the scapula and attaches to the humerus.
  • Attachments – The clavicular region originates from the clavicle and the sternocostal region originates from the sternum and the fascia of the oblique muscles of the abdomen.