Lower Leg Tumors Images

Lower Leg Bone Cancer

There are many similarities between the lower leg and the lower arm, and the foot and the hand, with some of the muscles and bones of each even having the same names. However there are enormous differences in their functions. The hand is a tool with many capacities. The foot is used only for standing and locomotion. I'm dividing the lower leg muscles into three major groups the anterior group found on the front of the lower leg, the lateral group found on the outside, and the posterior group on...

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Pectineus Muscle

There are two obturator muscles, one internus and one externus internal and external. The obturator externus muscle arises from the pubic and ischial rami. It covers the obturator foramen as a broad flat muscle which converges and travels under the neck of the femur to insert in the fossa of the trochanter on the femur. A fossa is an indentation of bone. Obturator comes from the Latin obdurare, to harden or be inflexible. Ischium is Latin for hip joint and ramus is Latin for branch. The ischial...

The Anconeus Muscle

Transverse Thoracic Muscle

The anconeus muscle extends the elbow, helping to straighten the arm from a bent position. While appearing on the lower arm, it works synergistically with the triceps brachii muscle. It arises from the lateral or outside epicondyle of the humerus and crosses the elbow joint at the rear to insert on the olecranon of the ulna. Anconeus derives from the Greek and Latin meaning elbow. Ancos in Greek means to bend. This muscle flexes bends the thumb arising near the top of the radius and along the...

The Abdomen

Quadratus Lumborum

Unlike the thorax, the abdominal organs are not protected by a bony structure. Except for the spinal column, there is no bony protection between the bottom of the ribs to the top of the pelvis although the pelvis is positioned so that there is more of a barrier in the rear than in the front. Therefore the covering and protection of the viscera stomach, large and small intestines, liver, gall bladder, spleen, kidneys, bladder, and in women the ovaries and uterus is very important. As well as...

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General Bone Features With Condyles

The biceps femoris muscle arises as two heads. A long round head arises from the ischial tuberosity as a tendon which is shared with the semitendinous muscle. A short head arises from the outside edged of the linea aspera, about one third of the way down the posterior shaft of the femur. The fibers of the short head feed into those of the long head, which descends and ends in an aponeurosis and tendon. The tendon passes over the lateral condyle of the femur, crosses the joint to insert on the...

The Pelvis

Ischial Tuberosity

One could consider all the muscles in this area as upper leg muscles, playing an important role in maintaining our posture. All contribute to moving the upper thigh, and some facilitate hip rotation. The pelvis is made up of two identical mirror-image bones called the innominate bones to which the sacrum is joined from behind. They are joined to each other in the front by a band of cartilage known as the pubic symphysis. You can also see where the head of the femur fits into the socket called...

Posterior View

Latissimus Dorsi Muscle Attachments

Its name in Latin describes what it does it is a lifter of scapulas. It also assists in bending the neck. It arises as small tendons from the transverse processes of the atlas and axis as well as from the next two vertebrae. It inserts on the top part of the medial border of the scapula. This muscle is located just below the levator scapulae and the rhomboideus minor muscle. Along with the levator scapulae, it assists in moving the scapula inward or medially, toward the spine, and upward. In...

List of Illustrations

The frontalis and the occipital muscles The corrugator supercilii and the procerus muscles The palpebral levator superioris muscle The bones of the neck, interior-frontal view The skull, neck and uPPer back, Posterior view The rectus caPitis lateralis muscles The rectus caPitis Posterior minor muscle The rectus caPitis Posterior major muscle The obliquus caPitis suPerior muscle The levator labii superioris alaeque nasi muscle The obliquus caPitis inferior muscle The deppressor labii inferioris...

Severe Tighting In The Sternohyoid Muscle

Corrugator Supercilii

There are some features unique to the skull. The individual bones do not always dictate the larger shapes of the skull. A suture, or meeting of two different bones, is found in the middle of a larger form. You can see this meeting particularly in the zygomatic arch as well as in the ocular orbit. The frontal bone, the ethmoid and the maxilla have within them empty spaces called sinuses. The ethmoid bone, if cut in half, looks like a cluster of bubbles, and the walls of the sinuses are almost as...