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…
Introduction: Decorticate posture — a sign of severe damage to the brain — is an abnormal posturing in which a person is stiff with bent arms, clenched fists, and legs held out straight. The arms are bent in toward the body and the wrists and fingers are bent and held on the chest. This type…
What is Decerebrate posture? Decerebrate posture is an abnormal body posture that involves the arms and legs being held straight out, the toes being pointed downward, and the head and neck being arched backward. The muscles are tightened and held rigidly. This type of posturing usually means there has been severe damage to the brain….
The Median Nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus. Anatomy of Median Nerve: The median nerve originates from the lateral and medial cords of the brachial plexus and has contributions from ventral roots of C5-C7 (lateral…
Anatomy of the Calf muscle The calf muscle is located on the back of the lower leg and is actually made up of two muscles: The medial and lateral heads of the gastrocnemius muscle, which is the most superficial, are present. The gastrocnemius muscle belly is formed by the convergence of its two heads. The…
Hamstring Muscle Anatomy The hamstrings are a group of muscles and their tendons at the rear of the upper leg. They include the biceps femoris, semitendinosus, and semimembranosus. The hamstrings flex the knee joint and extend the thigh to the backside of the body. They are used in walking, running, and many other physical activities….
The ulnar nerve is a major peripheral nerve of the upper limb. The ulnar nerve is located in the medial side of the forearm. It runs from the large cubital tunnel in the elbow down to the fourth and fifth fingers. The ulnar nerve supplies sensation to both sides of the hand and contributes muscles…
What is an Opisthotonus Posture? Opisthotonus Posture is an abnormal posture in which spastic muscle contraction of the back of muscles of the neck, trunk, and lower extremities that leads to severe abnormal backward arching from neck to heel. Spasms of the muscles cause backward arching of the head, neck, and spine, as in severe…
The radial nerve is a major peripheral nerve of the upper limb. The radial nerve is a nerve in the arm that provides sensation to the skin on the back of the hand and the thumb side of the forearm. It is the largest nerve in the upper arm, and is a mixed nerve. The…
What is a Stroke? ANATOMY OF THE BRAIN : The three main components of the brain—the cerebrum, the cerebellum, and the brainstem—have distinct functions. The cerebrum is the largest and most developmentally advanced part of the human brain. It is responsible for several higher functions, including higher intellectual function, speech, emotion, integration of sensory stimuli…
