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Boundaries & Muscles of the Abdominopelvic Cavity
What make up the anterior & lateral boundaries of the abdominopelvic cavity?
Abdominal muscles & bony pelvis
In males, what penetrates the abdominal muscles inferiorly as it passes through the inguinal canal?
What boundary includes the vertebral column, boy pelvis, iliopsoas muscles, & fascia?
What is the superior boundary of the abdominopelvic cavity?
What boundary is formed by the pelvic diaphragm?
What is the pelvic diaphragm made from?
levator ani & coccygeus muscles
What originates at the pubis & inserts at the xiphoid process of the sternum?
What is the name of the band of connective tissue that connects the two rectus abdominus muscles?
What is the site of attachment for the aponeuroses of the 3 abdominal oblique muscles?
What originates at the borders of the ribs 5-12 & inserts at the linea alba?
What is the most superficial of the anterolateral abdominal muscles?
What originates at the lumbodorsal fascia & iliac crest?
What inserts at the inferior surface of 9-12, the linea alba, & pubis?
What muscle lies just deep to the external abdominal oblique?
What originates on the cartilage of the lower ribs, lumbodorsal fascia, & iliac crest?
What muscle inserts at the linea alba & pubis?
What is the innermost of the abdominal muscles?
What lies deep to the internal abdominal oblique?
What originates at the transverse processes of vertebrae T12-L5, & inserts at the lesser trochanter of the femur?
What originates at the iliac fossa & inserts at the lesser trochanter of the femur?
What muscles are often called the iliopsoas muscle because of their common insertion?
iliacus & psoas major
What do the muscles of the pelvic floor form?
urogenital triangle & anal triangle
What exercises strengthen the pelvic floor muscles of pregnant women?
What muscles form a funnel-shaped layer of muscle, which tapers to surround the anal canal & the external anal sphincter?
levatores ani muscles
What two muscles form the levatores ani muscles?
pubococcygeus & iliococcygeus
The origins of what muscle are the inner wall of the pelvis from the pubis to the spine of the ischium?
What lies posterior to the levator ani & anterior to the piriforms?
What originates at the ischium & inserts at the sacrum & coccyx?
What muscle plays a strong role in assisting the levator ani in supporting the pelvic organs?
In males, what muscle encloses the bulb of the penis?
What are the actions of the bulbospongious muscle in the male?
maintain erection of the penis, aid in ejaculation of semen, & aid in ejection of urine from the urethra
In females, what muscle is deep to the labia & covers the bulb of the vestibule?
What is the erectile tissue that surrounds the vaginal & urethral orifices?
bulb of the vestibule
What originates at the ischial tuberosity & inserts close to the pubic symphysis along the crura of the penis or clitoris?
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