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Exam 4

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?

Spermatic chord

What boundary includes the vertebral column, boy pelvis, iliopsoas muscles, & fascia?

posterior boundary

What is the superior boundary of the abdominopelvic cavity?


What boundary is formed by the pelvic diaphragm?

inferior boundary

What is the pelvic diaphragm made from?

levator ani & coccygeus muscles

What originates at the pubis & inserts at the xiphoid process of the sternum?

rectus abdominus

What is the name of the band of connective tissue that connects the two rectus abdominus muscles?

linea alba

What is the site of attachment for the aponeuroses of the 3 abdominal oblique muscles?

linea alba

What originates at the borders of the ribs 5-12 & inserts at the linea alba?

external oblique

What is the most superficial of the anterolateral abdominal muscles?

external oblique

What originates at the lumbodorsal fascia & iliac crest?

internal oblique

What inserts at the inferior surface of 9-12, the linea alba, & pubis?

Internal oblique

What muscle lies just deep to the external abdominal oblique?

internal oblique

What originates on the cartilage of the lower ribs, lumbodorsal fascia, & iliac crest?

Transverse abdominus

What muscle inserts at the linea alba & pubis?

Transverse abdominus

What is the innermost of the abdominal muscles?

Transverse abdominus

What lies deep to the internal abdominal oblique?

transverse abdominus

What originates at the transverse processes of vertebrae T12-L5, & inserts at the lesser trochanter of the femur?

Psoas major

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?

Kegel exercises

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?

levator ani

What lies posterior to the levator ani & anterior to the piriforms?

Coccygeus muscle

What originates at the ischium & inserts at the sacrum & coccyx?

coccygeus muscle

What muscle plays a strong role in assisting the levator ani in supporting the pelvic organs?

Coccygeus muscle

In males, what muscle encloses the bulb of the penis?

Bulbospongiosus muscle

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?

Bulbospongiosus muscle

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?

ischiocavernous muscle

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