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ANHP 205 > The Pelvis (the Pelvic Bones And Muscles) > Flashcards

The Pelvis (the Pelvic Bones And Muscles) Flashcards

1
Q

What is the Pelvic Cavity?

A

Basin-shaped space which is bound by skeletal framework, and is lined partially by peritoneum

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2
Q

Where is the pelvic cavity located?

A

Inferior to the abdominopelvic cavity

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3
Q

What is included in the pelvic cavity?

A
  1. Reproductive organs
  2. Bladder
  3. Rectum
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4
Q

How is the pelvis divided?

A

True and false pelvis

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5
Q

How is the true and false pelvis divided?

A

Based on an oblique plane defined by an imaginary line. Which extends from symphysis pubis (anterior) to the sacrum (posterior). Or the Pelvic brim

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6
Q

What does the true pelvis contain?

A

Birth canal for females and internal reproductive organs

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7
Q

Where is the true pelvis located?

A

Inferior to the pelvic brim, between the pelvic inlet and outlet.

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8
Q

What is another name for the true pelvis?

A

Lessor pelvis

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9
Q

What is another name for the false pelvis?

A

Greater pelvis

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10
Q

Where is the false pelvis located?

A

Superior to pelvic brim.

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11
Q

What structures are in the false pelvis?

A
  1. Bowel
  2. Bladder when full
  3. Uterus in pregnancy
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12
Q

What is the purpose of the bony structure of the pelvis?

A
  1. Supports and transmits weight of body
  2. Protects pelvic viscera
  3. Bony support for birth canal in females
  4. Major site of muscle attachments
  5. Attaches the legs to torso
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13
Q

What are the components of the bony components of the pelvis?

A
  1. Sacrum
  2. Coccyx
  3. Hip/ innominate bones (ilium, pubis, ischium)
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14
Q

What is the sacrum?

A

Triangular shaped bone which is fused with 5 vertebra.

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15
Q

Where is the sacrum located?

A

On the posterior

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16
Q

What does the S1 of the sacrum articulate with?

A

L5

17
Q

Where is the sacral promontory located?

A

Anterior boarder of S1

18
Q

What does the S5 of the sacrum articulates with?

A

Coccyx

19
Q

What does the sacrum connect with?

A

OS coxae (Hip/innominate bone) aka the sacroiliac joints

20
Q

What is a coccyx?

A

Structure which is located inferior to sacrum, which is a muscle attachment that also has 3-5 rudimentary vertebrae.

21
Q

What is the coccyx also known as?

A

Tailbone

22
Q

What are the parts of the hip bones?

A

3 parts
1. Ilium
2. Pubis
3. Ischium

23
Q

What is the hip bones also called as well?

A

Os Coxae or innominate

24
Q

What is the illium?

A

Largest and most superior bones in the hips. Which consists of 3 parts
1. Ala
2. Fossa
3. Crest

25
Q

What is the ala?

A

Large, flaring portion of the ilium

26
Q

What is the fossa of the ilium?

A

Inner aspect of ala

27
Q

What is the crest of the ilium?

A

Most superior portion of the hip

28
Q

What is the pubis?

A

Body and 2 rami, bodies join midline to form symphysis

29
Q

What is the ischium?

A

Posterior and inferior part of the hip bones. Usually the part that supports us while we sit

30
Q

What does the pelvic muscles do?

A

Assists in movement, stabilization, and protection of structure.

31
Q

How are the pelvic muscles classified?

A

In terms of function and location
- pelvic wall
- pelvic diaphragm

32
Q

What are pelvic wall muscles?

A
  1. Psoas
  2. Iliacus
  3. Iliopsoas
  4. Obturator
  5. Piriformis
33
Q

What is the psoas muscle?

A

Lateral to vertebral bodies; extends from upper abdomen to pelvis

34
Q

What is the iliacus muscles?

A

Triangular muscles which extends from iliac crest and sacrum to join with the psoas

35
Q

What is the Iliopsoas muscle?

A

Muscle which is anterior over pelvic brim which inserts into femur and helps flex the thigh

36
Q

What is the Obturator muscle?

A

Internal and external parts which forms the side walls of the pelvis, which aids in the lateral rotation of the thigh

37
Q

What is the piriformis?

A

Triangular shaped muscle which forms a large part of the posterolateral wall of the pelvic cavity. Which is responsible for lateral rotation and abduction

38
Q

What is th elevator ani muscles?

A

Largest and most important muscles. Integrity of the pelvic floor depends on the function of these muscles

39
Q

What is the coccygeus?

A

Smaller than th elevator ani, which form the posterior aspect of the pelvic floor

ANHP 205 (20 decks)

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