The Pelvis Part 1 Flashcards

1
Q

What four bones make up the adult pelvis?

A

•Sacrum
•Coccyx
•Right os coxae
•Left os coxae

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2
Q

Which of the bones of the pelvis make up the pelvic girdle?

A

Ossa coxae

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3
Q

What are two anatomical terms for what is commonly called the hipbone?

A

•Os coxae
•Innominate bone

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4
Q

With what features of the sacrum does the pelvic girdle articulate?

A

Left and right auricular surfaces

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5
Q

With what feature of the pelvic girdle does the head of the femur articulate?

A

Acetabulum

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6
Q

What is the largest and most superior of the three bones of the os coxae?

A

Ilium

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7
Q

What is the wing shaped portion of the ilium?

A

Ala

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8
Q

What depression lies on the medial side of the ilium?

A

Iliac fossa

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9
Q

What features on the lateral side of the ilium are formed by the gluteal muscles?

A

Anterior, posterior, and inferior gluteal lines

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10
Q

What ear shaped feature of the ilium articulates with the sacrum?

A

Auricular surface of the ilium

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11
Q

What is the superior ridge of the ilium?

A

Iliac crest

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12
Q

What is the anterior termination of the superior ridge of the ilium?

A

Anterior superior iliac spine

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13
Q

What is the posterior termination of the superior ridge of the ilium?

A

Posterior superior iliac spine

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14
Q

What features lies inferior to the ala of the ilium anteriorly and posteriorly?

A

Anterior and posterior inferior iliac spines

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15
Q

Through what part of the ilium does the sciatic nerve pass?

A

Greater sciatic notch

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16
Q

What is the most inferior bone of the os coxae?

A

Ischium

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17
Q

What is the prominent triangular projection of bone posterior to the acetabulum?

A

Ischial spine

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18
Q

What is the indent that is formed by the ischial spine?

A

Lesser sciatic notch

19
Q

What rough projections of the pelvic girdle bear the weight of the body in the sitting position?

A

Ischial tuberosity

20
Q

What portion of the ischium fuses with the pubis medially?

A

Ischial ramus

21
Q

What is the most anterior of the three bones forming the os coxae?

A

Pubis

22
Q

What part of the pubis articulates with the pubis on the opposite side of the body?

A

Body

23
Q

What part of the pubis fuses with the ischium?

A

Inferior ramus

24
Q

What part of the pubis originates at the anterior margin of the acetabulum?

A

Superior ramus

25
Q

What opening in the os coxae is formed by the pubis and ischium?

A

Obturator foramen

26
Q

With what feature of the pubis does the inguinal ligament attach?

A

Pubic tubercle

27
Q

What is the articulation between the bodies of the pubic bones?

A

Pubic symphysis

28
Q

On what feature of the pubis does a comb like muscle originate?

A

Pectineal line

29
Q

What feature of the pelvis extends from the pubic crest, pectineal line, and arcuate line to the rounded inferior edge of the sacral ala and sacral promontory?

A

Pelvic brim

30
Q

What portion of the pelvic cavity lies inferiorly and forms a deep bowl?

A

True pelvis

31
Q

What portion of the pelvic cavity lies superiorly and is enclosed by the Ala of the iliac bones?

A

False pelvis

32
Q

What is the opening surrounded by the pelvic brim?

A

Pelvic inlet

33
Q

What opening of the pelvic cavity is bordered by the coccyx the Ischial tuberosities and the inferior border of the pubic symphysis?

A

Pelvic outlet

34
Q

Females pelvis differences from male pelvis

A

•The entire pelvic girdle is tilted forward
•The bone are thinner and lighter
•The distance between the anterior superior iliac spines is wider
•The true pelvis is spherical and wider
•The outline of the obturator foramen is more triangular
•The symphysis pubis is shallower
•The pubic angle is wider and more rounded

35
Q

What muscles origin is the transverse processes of L1-L5, insertion lesser trochanter of femur, action flexes hip rotates thigh laterally and flexes vertebral column?

A

Psoas major

36
Q

What muscles origin is iliac fossa, insertion lesser trochanter of femur, action flexes hip and rotates thigh laterally?

A

Iliacus

37
Q

By what name are the iliacus and psoas major referred to after they pass deep to the inguinal ligament?

A

Iliopsoas

38
Q

What muscles origin is anterior superior iliac spine, insertion superior part of the medial surface of tibia, action flexes, abducts, and laterally rotates leg at knee joint?

A

Sartorius

39
Q

What muscles origin is anterior superior iliac spine and anterior part of external lip iliac crest, insertion anterolateral aspect of lateral tibial condyle via iliotibial tract, action abducts thigh?

A

Tensor fasciae latae

40
Q

What muscles origin is iliac crest, dorsal surface of sacrum and coccyx, insertion gluteal tuberosity and iliotibial tract, action extends hip and rotates thigh laterally?

A

Gluteus Maximus

41
Q

What muscles origin is upper half of lateral surface of the ilium, insertion lateral surface of greater trochanter, action abducts hip and rotates thigh medially?

A

Gluteus medius

42
Q

What muscles origin lower half of lateral surface of ilium, insertion anterior surface of greater trochanter, abducts hip and rotates thigh medially?

A

Gluteus minimus

43
Q

What muscles origin is anterior of the sacrum, insertion superior border of greater trochanter, action laterally rotates extended hip and abducts flexed thigh?

A

Piriformis