Gross Anatomy (Pelvis) Flashcards
A basin shaped structure that serves as a meeting point for the trunk and the lower limb is known as
The pelvis
The pelvis is divided into 2 anatomical regions, namely?
- Pelvic spine
- Pelvic girdle
The pelvic girdle is also known as?
The hip bone
The hip bone comprises 3 bones that fuse together .. the bones are?
- Ilium
- Ischium
- Pubis
The pelvic bones are held together by 2 main joints of the pelvis, namely?
- Pubic symphisis (anteriorly)
- Sacroiliac joint (posteriorly)
The posterior portion of the pelvis below the lumbar spine, that comprises the sacrum and coccyx, is called?
The pelvic spine
Android, gynaecoid, anthropoid, and platypelloid, are all types of ?
Pelvis
The acetabulum is found in what surface of the pelvis?
The lateral surface
A socket shaped articular surface that articulates with the femur head is called
The acetabulum
The superior part of the acetabulum is bounded by which pelvic bone?
The ilium
The posteroinferior part of the acetabulum is bounded by which pelvic bone?
The ischium
The acetabulum and the obturator foramen are important landmarks of the pelvis..
True/false
True
The ilium has 4 major protruding areas(spine) that are commonly used as reference landmarks, they are?
- Anterior superior iliac spine
- Anterior inferior iliac spine
- Posterior superior iliac spine
- Posterior inferior iliac spine
The iliac tuberosity provides a point of attachment for ligaments and muscles of the back and lower limb..
True/False?
True
The latissimus, external oblique, internal oblique, tensor fascia latae, quadratus lumborum, are muscles which insert into what part of the pelvis?
The iliac crest
The satorius originates from the?
Anterior superior iliac spine
The rectus femoris Originates from the?
Anterior Inferior iliac spine
The L-shaped bony part of the pelvis is called
The ischium
The rough cylindrical branch-like part of the ischium is called
Ischial rami
The inferior border of the obturator foramen is formed collectively by the
Ischial Rasmus and inferior pubic Rasmus
The supraspinous ligaments attaches to what part of the pelvis
The ischial spine
Immediately below the ischial spine is a small “C” shaped concavity known as?
The lesser sciatic notch
The obturator internus, obturator externus, piriformis, coccygeus and levator Ani, are muscles that attach at what part of the pelvis?
The ischium
A small “K”shaped part of the pelvis located medially and having 2 rami is called
Pubis
The pubic crest is a sexually dimorphic area of the pelvis. This means?
Its shape differ between the male and female
The lumbosacral joint, sacroiliac joint, sacrococcygeal joint, and pubic symphisis are joints in the?
Pelvis
The pelvic diaphragm comprises 2 paired muscles, namely?
- Levator Ani muscle
- Coccygeus muscle
The function of the pelvic diaphragm is to?
Support the pelvic organs and prevent them from prolapse
The muscle that makes a U-turn around the anorectal junction to form the urogenital hiatus is?
The Puborectalis ( part of the levator Ani)
The levator Ani originates from?
The body of pubic bones and ischial spine
The levator Ani is innervated by?
S2 -S4 nerves
The coccygeus originates from?
The ischial spine
Where does The coccygeus inserts?
At the inferior end of sacrum, coccyx
The female pelvis is larger and broader than the male pelvis, this is because?
It provides a comfortable environment for foetal development
The contents of the true pelvis in females include?
- Internal genitalia
- External genitalia
- Distal part of the urinary and digestive system e.g ureter, urethra, rectum, bladder
The contents of the true pelvis in males include?
- Internal genitalia
- External genitalia
- Distal part of the urinary and digestive system
The internal genitalia in male comprises?
- Testis
- Epidydimis
- Ductus deference
- Seminal glands
- Ejaculatory ducts
- Prostate
The internal genitalia in female comprises?
- Ovaries
- Vagina
- Uterine tubes
- Uterus
The 4 main arteries in the pelvis are?
- Paired internal iliac arteries
- Paired gonadal arteries
- Median sacral artery
- Superior rectal artery
The paired internal iliac arteries supply?
The pelvic viscera
The paired gonadal arteries supply?
The internal genitalia
The median sacral artery supply?
The sacrum and the coccyx
The superior rectal artery supply?
The rectum
The most important artery in the pelvis is?
The internal iliac artery
The internal pudendal branch supplies?
The perineum
Blood drains from the pelvis to?
The internal iliac vein
The 4 major nervous structures found in the pelvis are?
- Lumbosacral trunk
- Sacral plexus
- Coccygeal plexus
- Autonomic pelvic nerves
