Gross Anatomy (Pelvis) Flashcards
The pelvis is a 4 boned structure
Outline the four bones
2 hip bones
Sacrum
Coccyx
The anterior and lateral walls of the pelvis are formed by which bone?
Left and right hip bone
The posterior wall of the pelvis is formed by what bones?
Sacrum
Coccyx
The 4 bones and joints of the pelvis come together to form a _______________ shaped strong structure
Basin
A cartilaginous joint on the anterior wall of the pelvis is called __________________
Pubic symphysis
How many joints are found in the pelvis?
4
The joints on the posterior-lateral wall of the pelvis are _________________
2 Sacroiliac joints
The sacroiliac joints are _______________ types of joints
Synovial
The joint on the posterior wall of the pelvis is the ______________________
Sacrococcygeal joint
The Sacrococcygeal joint is _________________
a. Fibrous
b. Cartilaginous
c. Elastic
Cartilaginous
The pelvis is divided into two parts by the ______________________
Pelvic brim
The pelvis is divided into 2 parts called the ______________________ and ____________________
False/Greater pelvis
True/Lesser pelvis
The part of the pelvis which is a part of the abdominal cavity is referred to as the _____________________
False/Greater pelvis
The part of the pelvis found below the pelvic brim is called _____________________
True/Lesser pelvis
Posteriorly the false pelvis is bounded by _______________________
Lumbar vertebrae
Laterally the false pelvis is bounded by ______________________
Iliacus muscle and Iliac fossa
Anteriorly the false pelvis is bounded by ___________________
The lower part of the anterior abdominal wall
The true pelvis has a _________________, _________________ and __________________
Cavity
Inlet
Outlet
The anterior wall of the pelvic cavity is deeper than the posterior wall.
True/False
False
The anterior wall is shallow while the posterior wall is deeper
The pelvic cavity lies between the _________________ and ____________________
Pelvic inlet
Pelvic outlet
The pelvic inlet is bound anteriorly by the __________________
Pubic symphysis
The pelvic inlet is bound posteriorly by the _____________________
Sacrum
The pelvic inlet is bound laterally by the ________________
Arcuate line
The pelvic outlet is bound anteriorly by the ______________
Pubic symphysis
The pelvic outlet is bound posteriorly by the _________________
Coccyx
The pelvic outlet is bound anterolaterally by the ________________________
Ischiopubic ramii
The pelvic outlet is bound posterolaterally by the _____________________
Sacrotuberous ligament
The ______________ sacrum is wider and shorter
a. Male
b. Female
Female
The angle of the female sacrum is ____________
80-85°
The angle of the male sacrum is _____________
50-60°
There are 4 types of female bony pelvis.
Outline them
Android
Gynaecoid
Platypelloid
Anthropoid
Tip** Android phone
Gynaecologist
Platypus bear
Anthropoids (kinda like spiders which are arthropods)
Why is the shape and dimension of the female pelvis important?
Because it forms the bony canal
The pelvis has 5 walls which are
Anterior
Posterior
Inferior
2 lateral
Which of the pelvis walls is the shallowest?
The anterior wall
Large
Formed by sacrum, coccyx, piriformis muscle , parietal pelvic fascia.
The above describes what pelvic wall?
Posterior wall
Formed by part of the hip bones, obturator internus muscle, Sacrotuberous and sacrospinous ligaments.
The above describes what pelvic wall?
Lateral walls
The inferior pelvic wall is also known as the __________________
Pelvic floor
The pelvic floor is formed by 4 muscles
Outline them
Coccygeus muscle
Levator ani muscle (Puborectalis, Pubococcygeus, Iliococcygeus)
The pelvic diaphragm divides the lesser pelvis into two parts ______________ and __________________
True pelvis (main pelvis)
False pelvis (perineum)
The pelvic viscerals are contained in the ________________
Main pelvis
The external genetalia are contained in the ________________
Perineum
