Compare the bladder, reproductive organs and rectum in side view.
Use a side view to arrange three neighbours from front to back. First find the pubic bone at the front and the sacrum at the back.
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Pelvic floor
Muscles and connective tissue supporting the pelvic organs from below.
For example
The pelvic cavity has an open connection to the abdomen above it.
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Pelvic floor
Muscles and connective tissue supporting the pelvic organs from below. The pelvic cavity has an open connection to the abdomen above it.
Pubic symphysis
The joint joining the right and left pubic bones at the front of the pelvis. The bladder lies just behind this joint.
Uterus / cervix
The uterus is the organ in which pregnancy develops. The cervix is its lower, narrower part. The cervix opens into the vagina, behind the bladder.
Prostate / urethra
The prostate is a gland below the male bladder. The urethra is the passage carrying urine out. The first part of the male urethra passes through the prostate.
Find the front and the back
The pelvis is the lower part of the trunk within the hip bones. In a side view, the pubic symphysis—the joint between the two pubic bones—is at the front. The sacrum is at the back. The bladder stores urine near the front; the rectum, the final part of the large intestine before the anal canal, lies farther back.
Typical female relationships
The uterus, where an embryo can develop, usually lies between the bladder and rectum. Its lower part is the cervix, which opens into the vagina. The ovaries produce oocytes, or egg cells; uterine tubes lead towards the uterus. The urethra carries urine out through a separate opening from the vagina.
Typical male relationships
The prostate is a gland below the bladder, around the first part of the urethra. The testes produce sperm and lie in the scrotum outside the pelvic cavity. Tubes carry sperm towards the urethra; glands add fluid to form semen. These are typical arrangements, and organ positions vary between people.
Explore the illustration
Look at the whole view first. Then select one label and connect it to the idea you just read.
Female pelvic relationships
Sagittal teaching view, anterior at left. Selected lateral structures are projected into the view.
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01 / 8 Pubic symphysis
Guided anatomy tour: each step identifies one structure and explains its relationship to the next. The highlight moves; the anatomy stays still. Reduced motion is enabled. Use the arrows to study one step at a time, or choose Play.
Pubic symphysis
The anterior bony joint lies in front of the bladder.
Adapted for this lesson: labels removed, artwork cropped or recoloured, and interactive teaching overlays added. Adapted artwork retains its source licence.
Go deeper
In-depth reading
Follow this example step by step, then try explaining it yourself. The extra reading is optional: you can return to it after exploring the illustration.
Worked example: follow urine without changing passages
Start at a kidney in the posterior abdomen. Urine travels down a ureter to the bladder. There are two ureters, one from each kidney.
The bladder stores the urine. When it empties, urine leaves through the urethra. “Ureter” and “urethra” sound similar but name different parts of the route.
In a female side view, the vagina lies close to the urinary passage but is separate. Trace each tube continuously rather than jumping to the nearest line in the picture. Neighbouring organs do not necessarily share an opening.
Explain it yourself
Which tube carries urine from the bladder to the outside?
Show the explanation
The urethra. A ureter carries urine from a kidney to the bladder. Keeping the starting point and destination in mind helps separate the names.
More detail — when you are ready
These notes expand the mechanisms and vocabulary. Read one topic at a time and find the structures in the illustration.
Boundaries and shared organs
The pelvic cavity continues from the abdomen superiorly. Pubic bones and the pubic symphysis form the anterior boundary, hip bones the lateral framework, and sacrum and coccyx the posterior boundary.
Muscles of the pelvic floor support the contents inferiorly. The urinary bladder lies behind the pubic symphysis; the rectum is farther posterior.
Sigmoid colon and some small-intestinal loops may also occupy the pelvis. The perineum is the region below the pelvic floor and should not be treated as another name for the whole pelvic cavity.
Compare typical reproductive relationships
In a typical female sagittal view, bladder, uterus and rectum appear in an anterior-to-posterior sequence. The cervix connects the uterine cavity with the vagina.
Ovaries and uterine tubes are paired, but their exact position varies. In a typical male view, the prostate is inferior to the bladder and surrounds the proximal urethra; seminal vesicles are posterior to the bladder.
The testes are in the scrotum, not inside the pelvic cavity. These spatial relationships describe typical anatomy without assuming that every person has identical organ position.
Follow the passage rather than its neighbour
A ureter carries urine from a kidney to the bladder; the urethra carries it from the bladder towards the exterior. The vagina is a separate passage from the female urethra.
Sperm travel from the testis through the epididymis and ductus deferens towards the ejaculatory duct and male urethra. They do not travel through a ureter.
In a sagittal illustration, begin with the pubic symphysis and sacrum to establish front and back, then trace each passage continuously. Being close together does not mean that tubes share an inside passage.
That inside space is called the lumen.
Further reading — optional
Free external resources in English. Internet connection required to open the links. Choose the topic you want to explore; these readings are not required to complete the section.
Trace ureter → bladder → urethra. Compare the diagrams to see how neighbouring reproductive structures change the relationships.
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Sources and illustration notes
Bilingual teaching notes organised from your supplied anatomy reference pages. Medical SVG artwork is credited beneath each illustration; guided sequences and process overlays support slow, step-by-step study. Anatomy and translation await expert review.
