Flat Muscle Anatomy. The muscles primary function is of the upper extremity but is also considered to be a respiratory accessory muscle. It is a short muscle on the flat of the hand.
Anterior and posterior surfaces are formed of compact bone to provide strength for protection with the centre consisting of cancellous spongy bone and varying amounts of bone marrow. Pectoralis Major Muscle Attachment Action Innervation. There are flat bones in the skull occipital parietal frontal nasal lacrimal and vomer the thoracic cage sternum and ribs and the pelvis ilium ischium and pubis.
This flat triangle-shaped muscle fits into the curved surface called the iliac fossa of the highest and largest pelvic bone called the ilium or sometimes the iliac bone.
The pectineus muscle a flat quadrangular muscle located in the middle of the thigh helps to flex or move your leg towards your body. The fibers form a thin flat muscle which extends inferomedially across the anterior surface of the thigh. Due to this muscles broad attachment on the spinous processes ongoing research is looking at what if any role the muscle plays in trunk. Partition is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavityThe diaphragm is the most important muscle of respiration and separates the thoracic cavity containing the heart and lungs from.
