Lecture 34 Flashcards
whats gonads?
organs where gametes (sex cells) are produced
what are the gonads in males?
testes – spermatozoa
what are the gonads in females?
ovary – oocytes
whats the pelvis?
Bony basin found between trunk of body and the lower limbs
what makes up the pelvis?
Hip bones (ilium, pubis, ischium)
sacrum
coccyx
Genitalia allow for coitus - so that gametes can fuse to form
embryo
fertilization
what is the Trace around pelvic rim that provides circumference / parameter known as?
Pelvic inlet
Provides Basin like cavity that forms pelvic cavity
what is the trace around coccyx known as?
Pelvic outlet
Inferior region of pelvis
whats pelvic inlet?
boundary between the pelvic cavity and the abdominal cavity.
superior part of pelvis
whats the difference between pelvic inlet and pelvic outlet?
pelvic inlet is larger and always open
pelvic outlet is always closed by muscle
What are the 2 pelvic subdivisions?
False/greater pelvis
True/lesser pelvis
whats the False/greater pelvis?
- Superior region
- Above pelvic inlet (bound by illeum)
- Contains GI tract
whats the True/lesser pelvis?
- Inferior region
- Between inlet and outlet
- Contains internal reproductive organs
what are the differences between male and female pelvis?
Female
• Broader subpubic angle (>100°)
• Inlet oval (cause broader pelvis)
• Straighter coccyx
Male
• Narrow angle (<90°)
• Inlet heart shaped (cause narrow pelvis)
• Curved coccyx
why are there differences between male and female pelvis?
child birth and support develop foetus
whats the pelvic outlet?
Inferior region of pelvis covered by layers of muscle known as pelvic floor or pelvic diaphragm
What are 2 muscles that makes up the pelvic floor (of pelvic outlet)?
Levator ani
Coccygeus
how many openings does the male pelvic floor have?
2
urethra and anus
how many openings does the female pelvic floor have?
3
urethra, vagina and anus
where can you find the perineum?
Region inferior to the pelvic floor and between upper region of the thighs
what does the perineum include?
external genitalia and anus
the perineum is divided into 2 triangular divisions, what are they?
urogenital triangle (anterior) anal triangle (posterior)
what does the urogenital triangle include?
urethra
external genitalia
what does the anal triangle include?
Anus and fat
