The acetabulum is the cup-shaped socket on the lateral aspect of the pelvis, which articulates with the head of the femur to form the hip joint. The margin of the acetabulum is deficient inferiorly.
Simply so, Which bones articulates with the humerus? The humerus articulates with the scapula at the shoulder and with the radius and ulna at the elbow. The humerus is typically described as having a proximal region, shaft, and distal region.
What muscles attach to the os coxae? Some of the structures that attach to this include the lacunar ligament, conjoint tendon, pectineal ligament, pectineus muscle, and psoas minor muscle.
Subsequently, What muscles attach to the ASIS?
The anterior superior iliac spine refers to the anterior extremity of the iliac crest of the pelvis. This is a key surface landmark, and easily palpated. It provides attachment for the inguinal ligament, the sartorius muscle, and the tensor fasciae latae muscle.
At what location do the three bones of the os coxae fuse?
Each os coxa is a result of the fusion of three bones: the ilium, ischium, and pubis. These three bones fuse at the deep hemispherical socket, the acetabulum, which receives the femur.
What muscles attach to humerus? Muscle Attachments
| Muscle | Attachment |
|---|---|
| Pectoralis Major | Upper Part of the Anterior Border |
| Triceps Brachii | Lower Part of the Lateral Border Lateral Supracondylar Ridge |
| Brachioradialis | Lateral Supracondylar Ridge |
| Extensor Carpi Radialis Longus | Lateral Supracondylar Ridge |
Which of the following muscles inserts on the humerus?
The pectoralis major, teres major, and latissimus dorsi insert at the intertubercular groove of the humerus. They work to adduct and medially, or internally, rotate the humerus. The infraspinatus and teres minor insert on the greater tubercle, and work to laterally, or externally, rotate the humerus.
What bone articulates with the scapula and sternum? The clavicle articulates at one end with the sternum (chest bone) and with the acromion of the scapula at the other. This articulation between the acromial end of the clavicle and the acromion of the scapula forms the roof of the shoulder.
Which bone of the axial skeleton do the os coxae attach to?
The os coxae, or hip bones as they are known colloquially, are attached dorsally to the sacrum by sacroiliac ligaments. In addition to the ligaments of this joint, the interposing areas of the sacrum and the ilium have matching, irregular contours to increase joint strength.
Which joint consists of a fibrocartilage pad that joins the two pubic bones anteriorly? At the pubic symphysis, the pubic portions of the right and left hip bones of the pelvis are joined together by fibrocartilage pad.
Which part of the os coxa participates in the hip joint?
The ilium bone forms the superior portion of the os coxa, the ischium bone the lower posterior portion, and the pubic bone (pubis) the lower anterior portion. Three articulation (joint) sites are found on each os coxa.
What muscle originates from ASIS? Sartorius muscle
| Origin | Anterior superior iliac spine (ASIS) |
|---|---|
| Function | Hip joint: thigh flexion, thigh abduction, thigh external rotation Knee joint: leg flexion, leg internal rotation |
What muscles attach at the iliac crest?
Many important abdominal and core muscles are attached to the iliac crest, including the hip flexors, the internal and external abdominal oblique muscles, the erector spinae muscles, the latissimus dorsi, the transversus abdominis, and the tensor fasciae latae.
What muscles attach to the PSIS?
As the most posterior projection of the iliac crest, it serves for the attachment of the long posterior sacroiliac ligament, which blends with the sacrotuberous ligament, as well as the multifidus and gluteus maximus muscles.
What bones fuse to form the os coxae? The innominate bones, also known as the hip bones or os coxae, are the fused bones of the pelvis either side of the sacrum. The bone comprises the ischium, pubis and ilium which are fused to each other in the acetabulum and are part of the appendicular skeleton.
Is os coxae axial or appendicular?
The bones of the appendicular skeleton include those of the appendages and the joints with those appendages including the shoulder girdle (clavicle and scapula) and the hip joint (os coxae or hip bones).
What are the three fused bones that make up the Coxae of the pelvic girdle?
In discussing the pelvis, a distinction can be made between the « pelvic spine » and the « pelvic girdle. » The pelvic girdle, also known as the os coxae, Latin for “bone of the hip,” consists of the fused bones identified individually as the ilium, ischium, and pubis.
What muscles attach to lesser tubercle of humerus? The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus. The muscle internally rotates and adducts the humerus. The bicep tendon lies underneath the subscapularis tendon in the bicipital groove.
What attaches to the medial supracondylar ridge of humerus?
The inferior third of the medial border of the humerus is raised into a slight ridge, the medial supracondylar ridge (or medial supracondylar line), which becomes very prominent below; it presents an anterior lip for the origins of the Brachialis and Pronator teres, a posterior lip for the medial head of the Triceps …
What muscles attach to the medial epicondyle of the humerus? The medial epicondyle gives attachment to the ulnar collateral ligament of elbow joint, to the pronator teres, and to a common tendon of origin (the common flexor tendon) of some of the flexor muscles of the forearm: the flexor carpi radialis, the flexor carpi ulnaris, the flexor digitorum superficialis, and the …
Which muscle inserts on the anterior humerus?
Deltoid muscle
| Origins | Lateral 1/3 of Clavicle (clavicular part), Acromion (acromial part), Spine of Scapula (spinal part) Mnemonic: ‘Deltoid helps you carry SACS’ |
|---|---|
| Insertion | Deltoid tuberosity of humerus |
| Innervation | Axillary nerve (C5, C6) |
Which of the following muscles inserts on the Brachium? Brachialis muscle
| Origin | Distal half of anterior surface of humerus |
|---|---|
| Insertion | Coronoid process of the ulna; Tuberosity of ulna |
| Innervation | Musculocutaneous nerve (C5,C6); Radial nerve (C7) |
| Blood supply | Brachial artery, radial recurrent artery, (occasionally) branches from the superior and inferior ulnar collateral arteries |
Which muscle inserts on the humerus quizlet?
Terms in this set (8)
- Pectoralis Major. Origin: Clavicle, Sternum, ribs. …
- Latissimus Dorsi. Origin: Thoracic/Lumbar vertebrae. …
- Subscapularis. Origin: Anterior surface of scapula. …
- Teres Major. Origin: Lateral border of scapula. …
- Supraspinatus. Origin: Supraspinous fossa of scapula. …
- Infraspinatus. …
- Teres Minor. …
- Deltoid.
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