what is the origin and insertion of the biceps femoris long head?
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Biceps Femoris – Long Head. Origin: Common tendon with semitendinosus from superior medial quadrant of the posterior portion of the ischial tuberosity. Insertion: Primarily on fibular head; also on lateral collateral ligament and lateral tibial condyle.
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The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap, forming the knee joint. By most measures the two (left and right) femurs are the strongest bones of the body, and in humans, the longest.
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Parallel. In a parallel arrangement, the length of the fascicles runs parallel to the long axis of the muscle. Such muscles are either straplike like the sartorius muscle of the thigh, or spindle shaped with an extended belly, like the biceps brachii muscle of the arm.
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Fibularis brevis muscle/ Peroneus brevis muscle: has its origin at the distal two-thirds of the lateral surface of the fibula and is covered by the fibularis longus muscle in the most part. Its tendon inserts at the tuberosity of the fifth metatarsal bone.
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Insertion: Deltoid tuberosity of humerus. Function: Prime mover of arm abduction.
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The iliopsoas muscle is a composite muscle formed from the psoas major muscle, and the iliacus muscle. ... The iliacus originates in the iliac fossa of the pelvis. The psoas major unites with the iliacus at the level of the inguinal ligament and crosses the hip joint to insert on the lesser trochanter of the femur.
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Dips. During the throwing motion, the head of the humerus (upper arm bone) can glide into the soft tissue structures in the front of the shoulder. This can cause the anterior shoulder capsule to become too loose and irritate the biceps tendon, leading to increased shoulder instability and a higher risk of injury.
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The origin of a muscle is the end of the muscle attached to an immovable part. The insertion is the end of a muscle attached to a moveable part.
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Origin of the latissimus dorsi is from spinous processes of thoracic T7–T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs, inferior angle of scapula and insertion on floor of intertubercular groove of the humerus. ... The extra slip of the latissimus dorsi may puzzle any transplant operations.
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Origin and insertion Flexor carpi ulnaris originates with two heads which are linked by a tendinous arch. The heads are named according to the bones they attach to; ... The more extensive ulnar head originates from the olecranon and proximal part of the posterior border of ulna.
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Origin. Gastrocnemius originates as two heads from the femur. The medial head originates from the popliteal surface of the femoral shaft, and the posterior surface of the medial condyle. ... The tendinous attachments of the medial and lateral head expand, covering the posterior aspect of each head with an aponeurosis.
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They originate from the vertebral column and attach to the bones of the shoulder - the clavicle, scapula and humerus. All these muscles are therefore associated with movements of the upper limb. The muscles in this group are the trapezius, latissimus dorsi, levator scapulae and the rhomboids.
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The anterior compartment contains the sartorius muscle (the longest muscle in the body) and the quadriceps femoris group, which consists of the rectus femoris muscle and the three vasti muscles – the vastus lateralis, vastus intermedius, and the vastus medialis.
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Palmaris longus is a muscle of the forearm and wrist. It originates at the medial epicondyle of the humerus and inserts, a bit, at the flexor retinaculum. However, its major insertion point is the palmar aponeurosis.
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Origin and insertion The upper/superior head originates on the infratemporal surface and infratemporal crest of the greater wing of the sphenoid bone and inserts onto the articular disc and fibrous capsule of the temporomandibular joint.
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Biceps brachii muscle. The biceps brachii muscle is one of the chief muscles of the arm. The origin at the scapula and the insertion into the radius of the biceps brachii means it can act on both the shoulder joint and the elbow joint, which is why this muscle participates in a few movements of the arm.
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The SCM's origins are the sternum and clavicle and its insertion is the mastoid process behind the ear. The actions of the SCM are to flex and rotate the head. It does this by contracting both SCMs together or one alone, respectively.