The Pelvis Flashcards
The area of the body that extends from iliac crests of pelvic bones to pelvic diaphragm inferiorly, and the front from symphysis pubis to lumbar spine/sacrum/coccyx
Pelvic region
What cavity has a basin shaped space bound by skeletal framework
Pelvic cavity
What cavity is the inferior portion of the abdominopelvic cavity
Pelvic cavity
What cavity is partially lined by peritoneum of abdominal cavity that drapes over pelvic viscera
Pelvic cavity
Which cavity primarily contains reproductive organs, urinary bladder, and rectum
Pelvic cavity
The pelvic cavity is divided into two compartments. What are they
True pelvis
False pelvis
The true and false pelvis are divided by an imaginary line drawn from where to where
Symphysis pubis to sacrum
Which part of pelvic bones helps define boundary between false and true pelvis and also marks pelvic inlet
Pelvic brim
The true pelvis is also known as
Lesser pelvis (birth canal-women)
Which area is inferior to pelvic brim
True pelvis
Which part of pelvis is between pelvic inlet and pelvic outlet
True pelvis
The space enclosed by sacrum, ischium, pubis and pelvic portion of ilium
True pelvis
Part of pelvis that contains urinary bladder, rectum, internal reproductive organs,
True pelvis
Which part of pelvis has the pelvic outlet as an inferior opening (exit)
True pelvis
The false pelvis is also known as
Greater pelvis
Which part of pelvis is superior to pelvic brim
False pelvis
Which part of pelvis is between iliac fossae and pelvic brim
False pelvis
Which part of pelvis is generally considered part of abdominal cavity
False pelvis
Which part of pelvis contains abdominal viscera (part of small intestine and sigmoid colon)
False pelvis
The bladder when full and in pregnancies (2-3 trimester) extend into what part of pelvis
False pelvis
The pelvic can be divided into how many regions
Three
What are the three regions the pelvis occupies in the regional method
Right iliac region
Hypogastrium
Left iliac regions
Which part of the regional method contains caecum, appendix, distal end of right ureter, and right ovary
Right iliac region
Which region contains distal end of ileum, urinary bladder, uterus
Hypogastrium
Which region contains the sigmoid colon, left ovary, and distal end of ureter
Left iliac region
The bony framework for the pelvis is formed by what three bones
Sacrum
Coccyx
Paired hip bones
What are the five purposes of the bony structure in the pelvis
Support/transmit weight of body Protect pelvis viscera Birth canal (female) Muscle attachment Attach legs to torso
Which bone is the posterior midline portion of the bony pelvis
Sacrum
Which bone is triangular shaped that is composed of five fused vertebral segments
Sacrum
Lateral masses of sacrum articulate with — —— at the sacroiliac joints laterally
Os coxae
Which bone has
S1 articulating with L5 superiorly
S5 articulating with coccyx
Sacrum
The sacral promontory is
S1
Which bone is the inferior portion of the vertebral column
Coccyx
The coccyx is commonly called the
Tailbone
Which bone contains 3-5 rudimentary vertebrae
Coccyx
Which bone is a site of muscle attachment
Coccyx
The hip bones can also be be called what two things
Os coxae
Innominate bones
Each hip bone is formed by how many bones
Three
What three bones make the hip bone
Ilium
Pubis
Ischium
The three bones form during which point to form one unit
Puberty
Out of the hip bones which is the largest and most superior
Ilium
Which part of ilium is superior part presenting a large, flaring, surface
Ala
the inner aspect of ala, upper basin of pelvic girdle and covered with iliacus muscle is
Iliac fossa
The most superior portion of hip bone, palpable upper surface of pelvis
Iliac crest
Articulation between ilium and and sacrum posteriorly
SI joint
Which bone in hip bone consists of body and two rami (superior and inferior)
Pubis
The superior —— extends laterally from body to connect with the ilium
Pubic ramus
The inferior —— extends inferiorly to meet ischium
Pubic ramus
In the pubis the bodies meet in anterior midline to form the
Symphysis pubis
In the pubis the large opening formed by junction of pubic rami anf ischium is the
Obturator formania
What bone out of the pelvic bones is inferior and posterior location extending from ilium
Ischium
Which bone connects with pubic rami anteriorly
Ischium
The bone that supports body in a seated position that is bulky in an interior posterior area is the
Ischial tuberosity
The ilium, pubis, ischium meet in the
Acetabulum
What is a deep socket on the lateral aspect of the hip bone that fits the head of the femur
Acetabulum
Long muscle located lateral to vertebral bodies extending from upper abdomen to pelvis
Psoas muscle
Two Triangular shaped muscle
Iliacus
Piriformis
Muscle that extends from iliac crest of ilium and sacrum to lines each iliac fossa
Iliacus
Psoas muscle joins iliacus muscle in pelvis to become
iliopsoas muscle
Which muscle travels anteriorly over pelvic brim
Iliopsoas muscle
Which muscle inserts into lesser trochanter of femur
Iliopsoas muscle
Which muscle is a powerful flexor muscle of the thigh
Ileopsoas
What are five pelvic wall muscles
Psoas muscle Iliacus Iliopsoas muscle Obturator Piriformis
Which muscle is internal and external parts
Obturator
Which muscle aids in lateral thigh rotation
Obturator
Which muscle originates from obturator foramen and attatches into greater trochanter of femur
Obturator
Which muscle is the side walls of the pelvis
Obturator
Which muscle is a large part of the posterolateral wall of the pelvic cavity
Piriformis
Which muscle originates on anterior surface of sacrum and inserts into the greater trochanter of femur
Piriformis
Which muscle is responsible for lateral rotation and abduction of flexed hip
Piriformis
Which is the principal structure supporting the pelvic content
Pelvic diaphragm
Which structure is a hammock like muscular structure that forms the pelvic floor
Pelvic diaphragm
The main muscles of the pelvic diaphragm are
Levator ani
Coccygeus
What are three pelvic floor muscles
Pelvic diaphragm
Levator ani
Coccygeus
Out of the pelvic diaphragm muscles which is the largest and most important
Levator ani
How many levator muscles originate from pelvic wall of the pubis and fibres converge to insert into the coccyx and muscles of the opposite side converge to insert into the coccyx and muscles of the opposite side
Two
Which two levator ani muscles are there
Pubococcygeus
Ileococcygeus
The integrity of the pelvic floor depends on what two muscles to properly function
Pubococcygeus
Ileococcygeus
Which muscle is the smaller of the two diaphragm muscles in the pelvis
Coccygeus
How many coccygeus muscles form the posterior aspect of the pelvic floor
Two
Which pelvic diaphragm muscle originates on the spine of the ischium
Coccygeus
Which pelvic diaphragm muscle is a triangular sheet that fans out to insert on the sacrum and coccyx
Coccygeus
What are formed by reflections of the peritoneal lining of the abdominopelvic cavity over the cavity structures
Potential spaces
What are the three potential spaces of the female pelvis
Anterior cul de sac
Posterior cul de sac
Space of retzius
The anterior cul de sac is also known as the
Vesicouterine pouch
Which space in the female pelvis has peritoneum draping over posterior bladder wall and anterior surface of uterus
Anterior cul de sac
What space in female pelvis is usually empty but may contain loops of bowel
Anterior cul de sac
The posterior cul de sac is also known as what two things
Rectouterine pouch
Pouch of douglas
Which space in the female pelvis has peritoneum covering the anterior surface of rectum and posterior surface of uterus
Posterior cul de sac
Which space in the female pelvis is “most dependent” or inferior portion of pelvis
Posterior cul de sac
Which space in the female pelvis is most likely to accumulate first in this are due to gravity
Posterior cul de sac
Which space in the female pelvis is the small space between symphysis pubis and anterior bladder
Space of retzius
Which space in female pelvis is filled with extraperitoneal fat
Space of retzius
What female reproductive organ is a hollow muscular pear shaped organ
Uterus
What reproductive organ has a primary function of menstruation, pregnancy and labor
Uterus
What two things is the female reproductive organs responsible for
Producing sex hormones and ova
Protecting/supporting a developing embryo
The uterus is divided into how many anatomical regions
Five
The uterine wall is composed of how many layers
Three
The normal size of a uterus in an adult is
7-8 cm
The uterus can vary in shape and size due to which reasons
Prepubertal Reproductive age Gravida/parity Post-menopausal Disease
The five regions of the uterus from inferior to superior
Cervix Isthmus Body Cornua Fundus
Which part of uterus is in lowest inferior portion
Cervix
Which part of uterus is cylindrical shaped and stays in one place
Cervix
Which part of uterus extends from isthmus and projects into upper vagina
Cervix
The endocervical canal is a part of what and should be about how big
Cervix
2-3 cm
The endocervical canal is made up of which two parts
Internal os - superior opening of canal
External os - inferior opening of canal
The narrowest section of the uterine body directly superior to the cervix is
Isthmus
The body of the uterus is also known as
Corpus
The largest part of the uterus is
Body
Part of uterus located between cervix and fundus is the
Body
The part of uterus that is somewhat mobile is the
Body
The lateral extensions of the uterus continuous with the fallopian tubes is the
Cornua
The widest, rounded, superior portion of the uterus is the
Fundus
What part of uterus is superior to the insertion of the fallopian tubes/cornua
Fundus
What are the three layers of the uterus from inner to outer
Endometrium
Myometrium
Perimetrium
The inner layer of the uterus
Endometrium
The highly vascular layer in the uterus
Endometrium
The functional layer of the uterus
Endometrium
