The Pubis: Muscles And Their Attachments

The pubis is a bone that forms part of the pelvis, and several muscles attach to it. These include the gracilis, adductor brevis, pectineus, and sphincter urethrae muscles. The pelvic floor muscles, which consist of layers of muscles and connective tissues, also attach to the pubis. These muscles are crucial for maintaining core stability and supporting the abdominal and pelvic organs. They also play a vital role in controlling bladder and bowel functions. Strengthening the pelvic floor muscles through exercises like Kegels can help prevent injuries and maintain overall health.

Explore related products

EVOTECH Flexible Human Spine Model for Anatomy, 34.8 Inches Life-Size Flexible Spine Model with Stand, Chiropractic with Pelvis, Spine, Nerves and Vertebrae, Anatomical Spine Model

$59.99

Female Pelvic Skeleton Anatomical Model, Medical Quality, Life Sized (10" x 10" x 6" Approx.)

$45.89

Vision Scientific VAV245 Flexible Spinal Column | 5 Color-Coded | Muscle W Occipital Bone | Sacrum, Coccyx, 24 Vertebrae, Soft Disc | Pelvic Bones & Femur Heads, Arteries, Nerve Endings | W Manual

$92.4

Eleady Womens Waist Trainer Corset Vest Weight Loss Breathable Tank Tops Tummy Control Shapewear Slimming Body Shaper

$22.99

EVOTECH Flexible Colored Human Spine Model for Anatomy, 34.8 Inches Life-Size Painted Flexible Spine Model with Stand, Chiropractic with Pelvis, Spine, Nerves and Vertebrae, Anatomical Spine Model

$74.99

Shockwave Therapy Machine, Shock Wave Therapy Machine for Joint and Muscle Pain Relief, Muscle and Bone Tissue Regeneration, Painless, Non-Invasive Extracorporeal Shock Wave Therapy Device

$1250

Gracilis and adductor brevis muscles attach at the pubis' external surface

The pubis, or pubic bone, joins the rear bones of the pelvic girdle, allowing for a circular structure that connects the upper and lower halves of the body. The external surface of the pubis provides insertion points for several muscles, including the gracilis and adductor brevis muscles.

The gracilis muscle is the most superficial muscle of the medial (adductor) compartment of the thigh. It is a thin, flat, long muscle that attaches to the coxal bone and tibia. The gracilis tendon is often used in reconstructive surgery for torn tendons and ligaments, especially in the knee. It is the only hip adductor that acts on two joints, the hip and knee, allowing for thigh adduction, leg flexion, and medial (internal) rotation.

The adductor brevis is a flat, triangular muscle found in the inner thigh. It is one of the shortest muscles in the adductor group, which also includes the gracilis, adductor longus, adductor magnus, and pectineus muscles. The adductor brevis originates from the anterior surface of the body of the pubis and inserts on the linea aspera of the femur. This muscle is responsible for adduction of the thigh, external rotation, and flexion of the hip, aiding in balance and shifting the centre of gravity while walking or standing.

Together, the gracilis and adductor brevis muscles play important roles in lower body movement and stability. They attach to the external surface of the pubis, with the gracilis originating from the medial margins of the lower half of the anterior body of the pubis and the adductor brevis from the anterior surface of the body of the pubis. These muscles work in conjunction with other thigh adductors to enable a wide range of motions and provide support for the pelvis and lower limbs.

Explore related products

‌Women's Inflatable Pelvic Belt - Breathable Postpartum Recovery Band with Trochanter Support, Alleviates Leg Pain & Abdomen Shaping, Adjustable Bone Retraction Belt (Pink)

$21.89

NEW HORIZON Life Size Spine Model,34" Medical Color Coded Anatomical Super Flexible Spine Model with Pelvis,Femur Heads,Vertebrae, Nerves, Arteries, Lumbar Column, Includes Stand (3 Motnhs Warranty)

$68.95

‌Women's Inflatable Pelvic Belt - Breathable Postpartum Recovery Band with Trochanter Support, Alleviates Leg Pain & Abdomen Shaping, Adjustable Bone Retraction Belt (Black)

$21.89

Female Pelvic Muscle Model,6 Parts Pelvic Floor Model,Pelvic Floor Muscle Anatomical Model with Removable Organs for Med

$167.35

HADWYN Flexible Spine Model, 34.6'' Life Size Human Spinal Cord Anatomical Model with Stand Color Coded Regions Indicate The Cervical, Thoracic and Lumbar Spine for Med Students and Chiropractors

$116.86

Anatomy Model, Anatomical Model Torso, Female Pelvis Model with Organs, Female Pelvis and Pelvic Muscle Models Human Anatomy Bone Medical, Removable Organs Include Uterus

$174.49

Obturator internus and externus muscles attach at the pubis' pelvic surface

The obturator internus and externus muscles are part of the hip joint and attach to the pubis pelvic surface. The obturator internus is a deep muscle that forms part of the lateral wall of the pelvis. It originates on the medial surface of the obturator membrane, the ischium near the membrane, and the rim of the pubis. The muscle fibres arise from the inner surface of the obturator membrane, a fibrous sheet that closes the obturator foramen of the hip bone. The obturator internus also helps to support the urinary bladder as part of the pelvic floor.

The obturator externus muscle, on the other hand, is one of the short muscles of the hip that acts as an external rotator of the extended thigh. It is attached to the inferior pubic ramus and ischium, and at the side to the inner surface of the hip bone.

The obturator internus and externus muscles play an important role in pelvic floor function and rehabilitation. Strengthening these muscles may improve the normal function of the pelvic floor muscle, which is crucial for maintaining stability and balance in the pelvis.

In addition, the obturator internus and externus muscles have implications for the posterior surgical approach to the hip, as seen in a study by Solomon et al. (2010). This study highlights the role of these muscles in hip replacement surgery, where the detachment of their tendons is involved in the posterior approach.

Explore related products

Anatomy Model, Anatomical Model Torso, Female Pelvis Model with Organs, Female Pelvis and Pelvic Muscle Models Human Anatomy Bone Medical, Removable Organs Include Uterus

$174.49

Educational Model, Skeleton Models 3D Female Pelvic Floor Model Pelvis Model 6PC Life Size Pelvis Anatomical Model Female Pelvis Model with Muscles for Anatomy Bone Model for Display in Classrooms

$278.45

Five Lumbar Vertebrae with Pelvic Girdle and Half Leg Bone Model Male Pelvis Model Flexible Pelvis with Mobile Femur HEA

$173.93

Pelvic Floor Model,Pelvic Model Female with Muscles,Pelvic Floor Muscle Anatomical Model with Removable Organs for Medic

$158.25

3D Female Pelvic Floor Model Pelvic Model 6Pc Life Size Pelvis Anatomical Model Female Pelvic Model with Muscles for Ana

$140.16

Pelvic Model Medicine Female Pelvis Model Adult Female Pelvic Anatomical Model Human Bone Model Model Human Pelvic Anat

$210.61

Adductor longus muscle attaches to the upper body of the pubis

The adductor longus muscle is a large, fan-shaped skeletal muscle located in the medial aspect of the thigh. It is one of the adductor muscles of the hip, with its main function being to adduct the thigh. It forms the medial wall of the femoral triangle.

The adductor longus arises from the body of the pubis, inferior to the pubic crest and lateral to the pubic symphysis. The pubic bone has several skeletal landmarks that allow for the insertion of muscles, and the adductor longus originates from the anterior surface of the body of the pubis. The adductor brevis muscle is interposed between the adductor longus and the adductor magnus, on which the adductor longus lies ventrally.

The adductor longus is innervated by the anterior division of the obturator nerve (L2-L4). The obturator nerve exits via the anterior rami of the spinal cord from L2, L3, and L4. The adductor longus is supplied by the anterior division of the obturator nerve, and all three adductors (except the hamstring part of the adductor magnus) and gracilis are supplied by the obturator nerve.

The adductor longus is inserted into the middle third of the medial lip of the linea aspera. The fibres of the adductor longus extend into the adductor canal. The insertion point is between the insertion of the adductor magnus and the origin of the vastus medialis muscle, and inferior to the adductor brevis insertion.

Explore related products

Adult Female Pelvis Anatomical Model - Human Bone Model Model Female Pelvis Model - Medical Skeleton Decoration Statue,

$217.84

Pelvic Model Medicine Adult Female Pelvic Anatomical Model Human Bone Model Model Female Pelvis Model PVC Human Pelvic

$335.13

Educational Model Female Pelvis Model Adult Female Pelvic Anatomical Model Human Bone Model Model,Medical Models

$338.85

Anatomy Skeleton Models Pelvic Floor Model, Pelvic Model Woman with Muscles, Pelvic Floor Muscle Anatomical Model with Removable Organs for Medical Teaching

$351.97

Life Size Vertebral Column Spine Model 78Cm Flexible Spinal Cord Model with Stand,Chiropractic with Pelvis,Spinal Cord,N

$180.94

Anatomy Models Pelvic Floor Model, Pelvic Model Woman with Muscles, Pelvic Floor Muscle Anatomical Model with Removable Organs for Medical Teaching

$387.25

Pectineus muscle attaches to the pubis' superior ramus

The pubis is a bone that joins the rear bones of the pelvic girdle, allowing for a circular structure that joins the upper and lower halves of the body. The pubic bone has several skeletal landmarks that allow for the insertion of muscles, cartilage, ligaments, and tendons. The pubic symphysis joint connects the left and right pelvic bones, allowing the pelvis to absorb weight and enabling the pelvic bones to widen during childbirth.

The pectineus muscle is a short, flat, quadrangular muscle situated at the anterior (front) part of the upper and medial (inner) aspect of the thigh. It is the most anterior adductor of the hip and its primary action is hip flexion, along with hip adduction and external rotation of the hip. The pectineus muscle arises from the pectineal line of the pubis and, to a lesser extent, from the surface of the bone in front of it, between the iliopectineal eminence and pubic tubercle. The muscle then slides over the superior margin of the superior pubic ramus and courses posterolaterally down the thigh. It is innervated by the femoral nerve (L2, L3) and, in some cases, by the accessory obturator nerve.

The pectineus muscle has the most superior attachment of all the thigh adductors, originating from the pectineal line of the pubis on the superior pubic ramus. The pectineus muscle is reflected distally to reveal the iliopsoas muscle and the medial circumflex femoral artery and vein. The exposure of the pubic ramus is accomplished by retracting the iliopsoas muscle with a Hohmann retractor placed craniomedial to the iliopectineal eminence.

The prepubic tendon is the primary attachment of the ventral abdominal musculature to the pelvis, including the insertion of the gracilis and pectineus muscles. The gracilis muscle also attaches to the external surface of the body of the pubis and its inferior ramus. The pectineus muscle contributes to the external and internal rotation of the thigh and acts as an important stabilizer of the pelvis. It is suggested that muscles attaching between the pelvis and proximal femur act as adaptable ligaments of the hip joint, preserving its integrity during body movements.

Explore related products

Anatomy Skeleton Models Female Pelvic Muscle Model,6-Part Pelvic Floor Model,Pelvic Floor Muscle Anatomical Model with Removable Organs for Medical Teaching Education

$311.42

Anatomy Models Female Pelvis Girdles Pelvic Floor Muscle Test Model, Female Anatomical Model Basin Gynecology Education Doctor, 24.5 * 16 * 13cm

$362.92

Anatomy Skeleton Models Female Pelvis Girdles Pelvic Floor Muscle Test Model, Female Anatomical Model Basin Gynecology Education Doctor, 24.5 * 16 * 13cm

$329.85

Anatomy Models Female Pelvic 24.5 * 16 * 13 CM Girdle Pelvic Floor Muscle Test Model Structure Female Anatomical Model Basin Gynecology Education Doctor

$284.44

Medical Model of The Human Spine 78Cm Flexible Spinal Cord Model with Stand, Chiropractic with Pelvis, Spinal Cord, Nerv

$192.07

Anatomy Skeleton Models Female Pelvic 24.5 * 16 * 13 CM Girdle Pelvic Floor Muscle Test Model Structure Female Anatomical Model Basin Gynecology Education Doctor

$258.53

Sphincter urethrae takes origin from the conjoint ramus

The pubic bone, or pubis, is a skeletal landmark that allows for the insertion of muscles, tendons, cartilage, and ligaments. It is a critical bone that joins the rear pelvic girdle bones, holding them in place and allowing for a circular structure to join the upper and lower halves of the body.

The pubis is also involved in maintaining the health of the urogenital organs in both men and women, including the bladder, uterus, ovaries, prostate, and testes. The pubic bone is composed of three parts: the body, the superior ramus, and the inferior ramus. The sphincter urethrae, or urethral sphincter, is a muscle that attaches to the pubis, specifically taking origin from the conjoint ramus.

The urethral sphincter is a complex of muscles that encircle the urethra and control the flow of urine. It is divided into two parts: the internal urethral sphincter and the external urethral sphincter. The internal urethral sphincter is located at the junction of the urethra and the urinary bladder, made of smooth muscle, and is under involuntary control. The external urethral sphincter is located inferiorly and surrounds the membranous part of the urethra. It is formed from skeletal muscle and is under voluntary control.

The external urethral sphincter originates at the ischiopubic ramus and inserts with muscular fibers on the opposite side. It is controlled by the deep perineal branch of the pudendal nerve. In women, the external urethral sphincter is more complex and intricate than in men, consisting of three parts: the sphincter urethrae, the urethrovaginal muscle, and the compressor urethrae. The urethrovaginal muscle fibres wrap around the vagina and urethra, and contraction leads to the constriction of both. The compressor urethrae muscle originates from the right and left inferior pubic ramus and wraps anteriorly around the urethra, squeezing it against the vagina during contraction.

In summary, the sphincter urethrae takes origin from the conjoint ramus of the pubic bone. It is a critical muscle for maintaining urinary continence and controlling the flow of urine through the urethra. In women, the external urethral sphincter is more complex, consisting of additional muscles that surround and constrict the vagina and urethra.

Frequently asked questions