On the posterior surface of the femur, the intermediate ridge or pectineal line is continued to the base of the lesser trochanter and gives attachment to the pectineus muscle.
What does the pectineal line separate?
Anatomical terminology The pectinate line (dentate line) is a line which divides the upper two-thirds and lower third of the anal canal. Developmentally, this line represents the hindgut-proctodeum junction.
What is the pectineal line of the pelvis?
The pectineal line of the pubis (also pecten pubis) is a ridge on the superior ramus of the pubic bone. It forms part of the pelvic brim. Lying across from the pectineal line are fibers of the pectineal ligament, and the proximal origin of the pectineus muscle.
What is the pectineal line of the femur?
pec·tin·e·al line of femur a ridge running down the posterior surface of the shaft of the femur from the lesser trochanter to which the pectineus muscle attaches; continuous superiorly with intertrochanteric line and merges inferiorly with the spiral line of the femur to form the medial lip of the linea aspera.What attaches to linea aspera?
n. A longitudinal ridge running down the posterior surface of the shaft of the femur, affording attachment to various muscles including the vastus medialis, adductor longus, adductor magnus, adductor brevis, vastus lateralis, and short head of the biceps.
What is the attachment of the Pectineus?
PectineusOriginPectineal line of the pubic boneInsertionPectineal line of the femurArteryObturator arteryNerveFemoral nerve, sometimes obturator nerve
What does pectineal mean?
Of or relating to the pubic bone.
What attaches to the intertrochanteric line?
The fibers of the ischiocapsular ligament attach both into the joint capsule and onto the intertrochanteric line.Is spiral line and pectineal line same?
While the spiral line, which provides the origin for the vastus medialis muscle, runs medially towards the lesser trochanter, the pectineal line, marking the insertion of the pectineus muscle, is located lateral and superior to it [15].
Which muscle attaches to the lesser trochanter of the femur?psoas major: The psoas major muscle arises from the bodies of the second to sixth lumbar vertebrae. The muscle is inserted into the lesser trochanter of the femur.
Article first time published onWhere is the ischial?
Forming the lower and back sides of the hip bone, the ischium is one of the three bones that make up the pelvis. It is located beneath the ilium and behind the pubis.
What is the gluteal tuberosity?
The gluteal tuberosity (or line, crest, or ridge) is a long, wide, roughened, posterolaterally placed feature that extends from the base of the greater trochanter to the lateral lip of the linea aspera (see 12.1.
What is the adductor brevis?
Adductor brevis is a flat, triangular muscle that is found in the inner thigh. This muscle runs from the pubis to the medial aspect of the femur. Together with adductor longus, adductor magnus, gracilis and pectineus muscles, it comprises a group of muscles known as the adductors of the thigh.
What inserts on supracondylar line of femur?
The hamstring portion originates from the ischial tuberosity and inserts onto the adductor tubercle and medial supracondylar line of the femur. Actions of both portions include hip adduction, flexion, and extension.
What does Pectineus mean in medicine?
Medical Definition of pectineus : a flat quadrangular muscle of the upper front and inner aspect of the thigh that arises mostly from the iliopectineal line of the pubis and is inserted along the pectineal line of the femur.
What is Cooper's ligament inguinal?
Anatomical terminology. The pectineal ligament, sometimes known as the inguinal ligament of Cooper, is an extension of the lacunar ligament. It runs on the pectineal line of the pubic bone. The pectineal ligament is the posterior border of the femoral ring.
What does gracilis mean in anatomy?
: the most superficial muscle of the inside of the thigh that arises from the lower part of the pubic symphysis and the anterior half of the pubic arch and that has its tendon inserted into the inner surface of the shaft of the tibia below the tuberosity, and that acts to adduct the thigh and to flex the leg at the …
How do you isolate Pectineus?
Bend your raised leg slowly, causing you to lunge forward, while keeping your torso straight. Push your hips slightly forward and hold the stretch for at least two seconds, but you can hold for longer as your strength increases. Perform ten repetitions on one side, then repeat with the other leg.
What compartment is the Pectineus in?
The pectineus muscle is the most anterior dductor of the hip. It can be classified in the medial compartment of thigh(when the function is emphasized) or the anterior compartment of thigh (when the nerve is emphasized).
Where is the ischial Ramus?
The ramus of the ischium extends downwards from the body of ischium and then turns anteriorly and to unite with the inferior ramus of the pubic bone. Several surfaces and borders of the ischium are described: An anterior surface. A posterior surface divided into perineal and pelvic areas.
What is an Iliopubic eminence?
Anatomical terms of bone This groove is bounded medially by an eminence, the iliopubic eminence (or iliopectineal eminence), which marks the point of union of the ilium and pubis. It constitutes a lateral border of the pelvic inlet. The iliopectineal line is the border of the eminence.
Where are the femur?
femur, also called thighbone, upper bone of the leg or hind leg. The head forms a ball-and-socket joint with the hip (at the acetabulum), being held in place by a ligament (ligamentum teres femoris) within the socket and by strong surrounding ligaments.
What is the femur attached to?
The distal end of the femur is where it connects with the patella (knee cap) and the bones of the lower leg, the tibia, and fibula. The distal end of the femur has a saddle that rests on the top of the tibia. It has rounded edges on either side of the knee joint, known as the condyles.
What attaches to medial femoral condyle?
From its origin, the posterior cruciate ligament travels anterior and slightly medial where it is joined by one or two cords from the lateral meniscus (the anterior and posterior menisco-femoral ligaments (or the ligament of Humphrey and the ligament of Riesburg respectively) to attach the medial condyle of the femur …
What muscle is attached to the femur?
The quadriceps include four large muscles, rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. The quadriceps femoris is one of the strongest muscle groups in the body that covers the anterior aspect of the femur. This group of muscles has a common function. They extend the leg at the knee joint.
What attaches to the greater trochanter and lesser trochanter?
The greater trochanter gives attachment to a number of muscles (including the gluteus medius and minimus, piriformis, obturator internus and externus, and gemelli muscles), and the lesser trochanter receives the insertion of several muscles (including the psoas major and iliacus muscles).
What inserts lesser trochanter?
The iliopsoas muscle is formed by the psoas major and iliacus muscles, which mainly arise from the lumbar vertebrae and ilium. They fuse to insert on the lesser trochanter of the femur. This muscle functions as a hip flexor.
What muscle inserts on the lesser tubercle?
The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus.
What attaches to ischial tuberosity?
The ischial tuberosity is where the adductor and hamstring muscles of the thigh, as well as the sacrotuberous ligaments, attach.
What muscle attaches to the ischium?
There are a number of powerful muscular attachments to the ischium, most notably the hamstrings (biceps femoris, semimembranosus and semitendinosus) as well as quadratus femoris, obturator externus and adductor magnus (see Figs 11.2A/B).
What attaches to the ischial Ramus?
The inferior ramus serves partially as origin for part of the adductor magnus muscle and the gracilis muscle. The inferior ischial ramus joins the inferior ramus of the pubis anteriorly and is the strongest of the hip (coxal) bones.
