"stability. Muscles of the hip In human anatomy, the muscles of the hip joint are those muscles that cause movement in the hip. Most modern anatomists define 17 of these muscles, although some additional muscles may sometimes be considered. These are often divided into four groups according to their orientation around the hip joint: the gluteal group, the lateral rotator group, the adductor group, and the iliopsoas group. The muscles of the hip consist of four main groups The gluteal muscles include the gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae. They cover the lateral surface of the"
"where the buttocks anatomy joins the rear, upper portion of the thighs. The gluteus maximus muscle has two (2) points of insertion: (i) the one-third (1/3) superior portion of the (coarse line) linea aspera of the thigh bone (femur), and (ii) the superior portion of the iliotibial tract (a long, fibrous reinforcement of the deep fascia lata of the thigh). The left and the right gluteus maximus muscles (the butt cheeks) are vertically divided by the intergluteal cleft (the butt-crack) which contains the anus. The gluteus maximus muscle is a large and very thick muscle (6–7 cm) located on the"
"muscle in the back. Made up of 3 muscles including the spinalis, longissimus and iliocostalis. spinalis runs adjacent to the spine, the longissimus runs adjacent to the spinalis and the iliocostalis runs adjacent to the longissimus and over the ribs. 2 muscles called the gluteus medius and gluteus minimus stabilize the upper leg. The medius and minimus sit under the largest butt muscle, the gluteus maximus. While the anterior deltoids and pectoralis major muscles work to horizontally adduct the upper arms during the upward phase of a push-up, the triceps brachii muscles, or triceps for short, are also hard at"
"by the formerly obese patient, after a massive weight loss (MWL) bariatric surgery procedure; and for resolving congenital defects and congenital deformities of the gluteal region. Anatomically, the mass of each buttock principally comprises two (2) muscles — the gluteus maximus muscle and the gluteus medius muscle — which are covered by a layer of adipose body fat. The upper aspects of the buttocks end at the iliac crest (the upper edges of the wings of the ilium, and the upper lateral margins of the greater pelvis), and the lower aspects of the buttocks end at the horizontal gluteal crease,"
"Pectoral muscles Pectoral muscles (colloquially referred to as ""pecs"") are the muscles that connect the front of the human chest with the bones of the upper arm and shoulder. Pectoralis major is a thick, fan-shaped muscle, which makes up the bulk of the chest muscle. It lies under the breast. It serves to flex, extend, and rotate the humerus, the long bone of the upper arm. Pectoralis minor is a thin, triangular muscle located beneath the pectoralis major. It attaches to the ribs, and serves to stabilize the scapula, the large bone of the shoulder. The pectoral fascia is a"
"Abdominal external oblique muscle The external oblique muscle (of the abdomen) (also external abdominal oblique muscle) is the largest and the outermost of the three flat muscles of the lateral anterior abdomen. The external oblique is situated on the lateral and anterior parts of the abdomen. It is broad, thin, and irregularly quadrilateral, its muscular portion occupying the side, its aponeurosis the anterior wall of the abdomen. In most humans (especially females), the oblique is not visible, due to subcutaneous fat deposits and the small size of the muscle. It arises from eight fleshy digitations, each from the external surfaces"
"Vastus lateralis muscle The vastus lateralis (), also called the <nowiki>""vastus externus""</nowiki> is the largest and most powerful part of the quadriceps femoris, a muscle in the thigh. Together with other muscles of the quadriceps group, it serves to extend the knee joint, moving the lower leg forward. It arises from a series of flat, broad tendons attached to the femur, and attaches to the outer border of the patella. It ultimately joins with the other muscles that make up the quadriceps in the quadriceps tendon, which travels over the knee to connect to the tibia. The vastus lateralis is"
"Iliopsoas The iliopsoas () refers to the joined psoas and the iliacus muscles. The two muscles are separate in the abdomen, but usually merge in the thigh. As such, they are usually given the common name ""iliopsoas"". The iliopsoas muscle joins to the femur at the lesser trochanter, and acts as the strongest flexor of the hip. The iliopsoas muscle is supplied by the lumbar spinal nerves L1-3 (psoas) and parts of the femoral nerve (iliacus). The iliopsoas muscle is a composite muscle formed from the psoas major muscle, and the iliacus muscle. The psoas major originates along the outer"
"L4). Vastus lateralis muscle The vastus lateralis (), also called the <nowiki>""vastus externus""</nowiki> is the largest and most powerful part of the quadriceps femoris, a muscle in the thigh. Together with other muscles of the quadriceps group, it serves to extend the knee joint, moving the lower leg forward. It arises from a series of flat, broad tendons attached to the femur, and attaches to the outer border of the patella. It ultimately joins with the other muscles that make up the quadriceps in the quadriceps tendon, which travels over the knee to connect to the tibia. The vastus lateralis"
"Latissimus dorsi muscle The latissimus dorsi () is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. The word latissimus dorsi (plural: ""latissimi dorsi"") comes from Latin and means ""broadest [muscle] of the back"", from ""latissimus"" ()' and ""dorsum"" (). The pair of muscles are commonly known as ""lats"", especially among bodybuilders. The latissimus dorsi is the largest muscle in the upper body. The latissimus dorsi is responsible for extension, adduction, transverse extension also known as horizontal abduction, flexion from an"
"Pectoralis major The pectoralis major () is a thick, fan-shaped muscle, situated at the chest (anterior) of the human body. It makes up the bulk of the chest muscles and lies under the breast. Below (deep to) the pectoralis major is the pectoralis minor, a thin, triangular muscle. In sports as well as bodybuilding, the pectoral muscles may colloquially be referred to as ""pecs"", ""pectoral muscle"" or ""chest muscle"" due to its being the larger and most superficial muscle in the chest area. It arises from the anterior surface of the sternal half of the clavicle; from breadth of the"
"Sartorius muscle The sartorius muscle () is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. The sartorius muscle originates from the anterior superior iliac spine and part of the notch between the anterior superior iliac spine and anterior inferior iliac spine. It runs obliquely across the upper and anterior part of the thigh in an inferomedial direction. It passes behind the medial condyle of the femur to end in a tendon. This tendon curves anteriorly to join the tendons of the gracilis"
"are separated by tough connective tissue membranes (or septa). Each of these compartments has its own blood and nerve supply, and contains a different group of muscles. Anterior compartment muscles of the thigh include sartorius, and the four muscles that comprise the quadriceps muscles- rectus femoris, vastus medialis, vastus intermedius and vastus lateralis. Posterior compartment muscles of the thigh are the hamstring muscles, which include semimembranosus, semitendinosus, and biceps femoris. Medial compartment muscles are pectineus,adductor magnus, adductor longus and adductor brevis, and also gracilis. Because the major muscles of the thigh are the largest muscles of the body, resistance exercises"
"Stifle joint The stifle joint (often simply stifle) is a complex joint in the hind limbs of quadruped mammals such as the sheep, horse or dog. It is the equivalent of the human knee and is often the largest synovial joint in the animal's body. The stifle joint joins three bones: the femur, patella, and tibia. The joint consists of three smaller ones: the femoropatellar joint, medial femorotibial joint, and lateral femorotibial joint. The stifle joint consists of the femorotibial articulation (femoral and tibial condyles), femoropatellar articulation (femoral trochlea and the patella), and the proximal tibiofibular articulation. The joint is"
"act together, they keep the scapula pressed against the thorax ""together"" with the rhomboids and therefore these parts also act as synergists to the rhomboids. The inferior part can pull the lower end of the scapula laterally and forward and thus rotates the scapula to make elevation of the arm possible. Additionally, all three parts can lift the ribs when the shoulder girdle is fixed, and thus assist in respiration. The serratus anterior is occasionally called the ""big swing muscle"" or ""boxer's muscle"" because it is largely responsible for the protraction of the scapula — that is, the pulling of"
"thigh muscles, insert on the leg (either the tibia or the fibula) and act primarily on the knee joint. Generally, the extensors lie on anterior of the thigh and flexors lie on the posterior. Even though the sartorius flexes the knee, it is ontogenetically considered an extensor since its displacement is secondary. Of the anterior thigh muscles the largest are the four muscles of the quadriceps femoris: the central rectus femoris, which is surrounded by the three vasti, the vastus intermedius, medialis, and lateralis. Rectus femoris is attached to the pelvis with two tendons, while the vasti are inserted to"
"Knee In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). It is the largest joint in the human body. The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis. It is often termed a ""compound joint"" having tibiofemoral and patellofemoral components. (The fibular collateral ligament is often considered with tibiofemoral components.) The"
"necessarily the cause of) lower back pain, difficulty with some movements that naturally require the gluteal muscles, such as rising from the seated position, and climbing stairs. Any exercise that works and/or stretches the buttocks is suitable, for example lunges, hip thrusts, climbing stairs, fencing, bicycling, rowing, squats, arabesque, aerobics, and various specific exercises for the bottom. Weight training exercises which are known to significantly strengthen the gluteal muscles include the squat, deadlift, leg press, any other movements involving external hip rotation and hip extension. Gluteal muscles The gluteal muscles are a group of three muscles which make up the"
"Rhomboid major muscle The rhomboid major is a skeletal muscle on the back that connects the scapula with the vertebrae of the spinal column. In human anatomy, it acts together with the rhomboid minor to keep the scapula pressed against thoracic wall and to retract the scapula toward the vertebral column. The rhomboid major arises from the spinous processes of the thoracic vertebrae T2 to T5 as well as the supraspinous ligament. It inserts on the medial border of the scapula, from about the level of the scapular spine to the scapula's inferior angle. The rhomboid major is considered a"
"L3 nerves. In less than 50 percent of human subjects, the psoas major is accompanied by the psoas minor. In mice, it is mostly a fast-twitching, type II muscle, while in human it combines slow and fast-twitching fibers. This muscle is equivalent to the tenderloin. The psoas major joins the upper body and the lower body, the axial to the appendicular skeleton, the inside to the outside, and the back to the front. As part of the iliopsoas, psoas major contributes to flexion in the hip joint. On the lumbar spine, unilateral contraction bends the trunk laterally, while bilateral contraction"
"Anterior compartment of thigh The anterior compartment of thigh contains muscles which extend the knee and flex the hip. The anterior compartment is one of the fascial compartments of the thigh that contains groups of muscles together with their nerves and blood supply. 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. The iliopsoas is sometimes considered a member of the anterior compartment muscles, as is the articularis genus"
"purpose of supporting the entire body weight. Deltoid muscle The deltoid muscle is the muscle forming the rounded contour of the human shoulder. It is also known as the 'common shoulder muscle', particularly in other animals such as the domestic cat. Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the nervous system. It was previously called the deltoideus (plural ""deltoidei"") and the name is still used by some anatomists. It is called so because it is in the"
"femur. ""Bent"" over the lesser sciatic notch, which acts as a fulcrum, the muscle forms the strongest lateral rotators of the hip together with the gluteus maximus and quadratus femoris. When sitting with the knees flexed it acts as an abductor. The obturator externus has a parallel course with its origin located on the posterior border of the obturator foramen. It is covered by several muscles and acts as a lateral rotator and a weak adductor. The inferior and superior gemelli represent marginal heads of the obturator internus and assist this muscle. The three muscles have been referred to as"
"superficial back muscle. It is deep to the trapezius, and is located directly inferior to the rhomboid minor. As the word ""rhomboid"" suggests, the rhomboid major is diamond-shaped. The ""major"" in its name indicates that it is the larger of the two rhomboids. The two rhomboids are sometimes fused into a single muscle. The rhomboid major, like the rhomboid minor, is innervated by the ventral primary ramus via the dorsal scapular nerve (C5). Both rhomboid muscles also derive their arterial blood supply from the dorsal scapular artery. The rhomboid major helps to hold the scapula (and thus the upper limb)"
"axis is the largest, and is chiefly muscular in structure. The semispinalis thoracis (or ""semispinalis dorsi"") muscle consists of thin, narrow, fleshy fasciculi, interposed between tendons of considerable length. It arises by a series of small tendons from the transverse processes of the sixth to the tenth thoracic vertebrae, and is inserted, by tendons, into the spinous processes of the upper four thoracic and lower two cervical vertebrae. The semispinalis muscles are innervated by the dorsal rami of the cervical spinal nerves. List of muscles of the human body Semispinalis muscles The semispinalis muscles are a group of three muscles"
"Deltoid muscle The deltoid muscle is the muscle forming the rounded contour of the human shoulder. It is also known as the 'common shoulder muscle', particularly in other animals such as the domestic cat. Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the nervous system. It was previously called the deltoideus (plural ""deltoidei"") and the name is still used by some anatomists. It is called so because it is in the shape of the Greek capital letter delta"
"the buttocks and thighs, the anatomic regions where the human body usually stores excess body fat. Post-operatively, because of the cutting (incising) into the flesh of the tailbone muscles, the full healing of the augmented tissues can be approximately 6–8 months, in the course of which the gluteal-muscle tissues relax, and the settled buttocks prostheses are integrated to the gluteal region. The implantation procedure can be performed upon a patient who is either sedated or anaesthetized, either under general anaesthesia or under local anaesthesia. The usual operating-room time for a buttocks augmentation procedure is approximately 2 hours. The procedure can"
"bone or the pedal bone. Below the navicular bone is the navicular bursa. There are three main muscle groups of the forelimb. The triceps muscle straightens the elbow and foreleg, running from the elbow to the bottom of the shoulder blade. The muscles which extend the lower leg are called extensor muscles, while the flexion of the lower leg joints is achieved through movement of the flexor muscles. There are five main muscles and muscle groups in the hind legs. The vastus muscle flexes the hind leg and runs from stifle to hip, while the gluteal muscles, the large muscles"
"Biceps The biceps, also biceps brachii (Latin for ""two-headed muscle of the arm""), is a large muscle that lies on the front of the upper arm between the shoulder and the elbow. Both heads of the muscle arise on the scapula and join to form a single muscle belly which is attached to the upper forearm. While the biceps crosses both the shoulder and elbow joints, its main function is at the elbow where it flexes the forearm and supinates the forearm. Both these movements are used when opening a bottle with a corkscrew: first biceps unscrews the cork (supination),"
"adductor muscles of the lower extremity (external obturator, adductor longus, adductor brevis, adductor magnus, gracilis) and sometimes the pectineus. Any of these innervated structures can be affected. Iliopsoas The iliopsoas () refers to the joined psoas and the iliacus muscles. The two muscles are separate in the abdomen, but usually merge in the thigh. As such, they are usually given the common name ""iliopsoas"". The iliopsoas muscle joins to the femur at the lesser trochanter, and acts as the strongest flexor of the hip. The iliopsoas muscle is supplied by the lumbar spinal nerves L1-3 (psoas) and parts of the"
"Its fibers end in a superficial aponeurosis, which forms the deep part of the quadriceps femoris tendon. The vastus medialis and vastus intermedius appear to be inseparably united, but when the rectus femoris has been reflected a narrow interval will be observed extending upward from the medial border of the patella between the two muscles, and the separation may be continued as far as the lower part of the intertrochanteric line, where, however, the two muscles are frequently continuous. The vastus lateralis is the largest and most powerful of the three vasti muscles. It arises from the several areas of"
"EMG recordings during the main experimental testing for that same skeletal muscle. B. K. Pedersen and her colleagues have conducted research showing that skeletal muscle functions as an endocrine organ by secreting cytokines and other peptides, now referred to as myokines. Myokines in turn are believed to mediate the health benefits of exercise. Skeletal muscle Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth muscle. It is a form of striated muscle tissue, which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles"
"and 1425. Historically, the ""absence of calf"", meaning a lower leg without a prominent calf muscle, was regarded by some authors as a sign of inferiority: ""it is well known that monkeys have no calves, and still less do they exist among the lower orders of mammals"". Calf (leg) The calf (Latin: sura) is the back portion of the lower leg in human anatomy. The muscles within the calf correspond to the posterior compartment of the leg. The two largest muscles within this compartment are known together as the calf muscle and attach to the heel via the Achilles tendon."