Introduction to Elbow Flexors The flexor group – including the brachialis, biceps brachii, and brachioradialis bend the arm by decreasing the angle between the forearm and upper arm. The brachialis is the primary flexor of the elbow and is found mainly in the upper arm between the humerus and the ulna. Superficial to the brachialis…
The obturator nerve begins at the medial border of the psoas major muscle. It travels through the obturator foramen (an opening in the pelvic bone) before entering the thigh, where it branches into two parts, an anterior branch and a posterior branch. The nerve is part of a group of nerves called the anterior lumbar…
The common fibular nerve (common peroneal nerve; external popliteal nerve; lateral popliteal nerve) is a nerve in the lower leg that provides sensation over the posterolateral part of the leg and the knee joint. It divides at the knee into two terminal branches: The superficial fibular nerve and deep fibular nerve, which innervate the muscles…
The tibial nerve is a major peripheral nerve of the lower limb. It has several cutaneous and motor functions in the leg and foot.The tibial nerve is a branch of the sciatic nerve. The tibial nerve passes through the popliteal fossa to pass below the arch of the soleus. Description of Tibial Nerve: The Tibial…
Root value: Spinal roots: C5 and C6. Sensory functions: Gives rise to upper lateral cutaneous nerve of arm, which innervates the skin over the lower deltoid (‘regimental badge area’). Motor functions: Innervates the teres minor and deltoid muscles. Description: Signs and symptoms may include: Anatomical Course: The Quadrangular Space: Motor Functions: Sensory Functions: Clinical Conditions:…
What is a Vitamin B 12? Vitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication. Vitamin B12 exists in several forms and contains the mineral cobalt, so compounds with vitamin B12 activity are collectively called “cobalamins”. Methylcobalamin and…
Anatomy: The paraspinal muscles, sometimes called the erector spinae, are three muscle groups that support your back. The paraspinal muscles are located on the left and right sides of your spine and are made up of three groups. These include: a) Iliocostalis b) Longissimus c) Spinalis A) ILIOCOSTALIS MUSCLE: The iliocostalis muscle is the most…
The femoral nerve is one of the major peripheral nerves of the lower limb. Descriptions: Nerve roots: L2-L4 Motor functions: Innervates the anterior thigh muscles that flex the hip joint (pectineus, iliacus, sartorius) and extend the knee (quadriceps femoris: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius). Sensory functions: Supplies cutaneous branches to the…
Introduction The abdominal muscles form the anterior and lateral abdominal wall and consist of the external abdominal obliques, the internal abdominal obliques, the rectus abdominis, and the transversus abdominis. Acting together these muscles form a firm wall that protects the viscera and they help to maintain erect posture. In addition the contraction of these muscles…
Anatomy of Gluteal Muscle Gluteus muscle, any of the large, fleshy muscles of the buttocks, stretching from the back portion of the pelvic girdle (hipbone) down to the greater trochanter, the bony protuberance at the top of the femur (thighbone). These include: 1) gluteus maximus2) gluteus medius3) gluteus minimus. 1) GLUTEUS MAXIMUS: This is a…
