Anatomy Quiz on Pelvic and Femoral Joints

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which classification describes the sacroiliac joint?

Synovial, Diarthrodial, Spheroidal

Synovial, Amphiarthrodial (correct)

Fibrous, Synarthrodial

Cartilaginous, Amphiarthrodial

What is the primary role of the greater trochanter of the femur?

Articulates with the tibia

Contains the fovea for ligament attachment

Attachment site for the gluteus maximus (correct)

Forms the knee joint

Which of the following describes the joint type formed at the union of the acetabulum?

Synovial, Amphiarthrodial

Cartilaginous, Synarthrodial (correct)

Synovial, Diarthrodial

Cartilaginous, Diarthrodial

Which feature on the distal end of the femur is responsible for articulating with the tibia?

Condyles Signup and view all the answers

In terms of mobility, which joint has the most limited movement?

Union of acetabulum Signup and view all the answers

What characterizes the female pelvis compared to the male pelvis?

Shallower, broader, and flaring with a wider pubic arch Signup and view all the answers

Which type of joint is formed at the pubic symphysis?

Fibro-cartilaginous, slightly movable joint Signup and view all the answers

What distinguishes the greater pelvis from the true pelvis?

The greater pelvis is bounded by the iliac crests. Signup and view all the answers

Which statement accurately describes the sacroiliac (SI) joints?

They provide an irregular, gliding type of joint between the ilia and sacrum. Signup and view all the answers

Which of the following statements is true regarding the variations in the obturator foramina of the male and female pelvis?

Male obturator foramina are more round, while female foramina are more oval. Signup and view all the answers

Which structure is located at the level of the pubic symphysis?

Anterior superior iliac spine (ASIS) Signup and view all the answers

What is the classification of the joint at the symphysis pubis?

Amphiarthrodial Signup and view all the answers

Which of the following bones compose the hip bone?

Pubis, Ilium, and Ischium Signup and view all the answers

What angle does the pubic arch of the male pelvis form?

Acute angle (<90°) Signup and view all the answers

Which of the following is NOT true regarding the symphysis pubis?

It is classified as diarthrodial. Signup and view all the answers

Study Notes

Bones of the Pelvis & Femur

The pelvis consists of four bones: two innominate (hip) bones, a sacrum, and a coccyx.
The innominate bones are each composed of three parts: ilium, ischium, and pubis.
The three bones of the innominate join to form the acetabulum, a cup-shaped socket that articulates with the head of the femur.

Ilium

The ilium consists of a body and an ala (wing).
The body forms the superior two-fifths of the acetabulum.
Four prominent processes include the anterior superior iliac spine (ASIS), anterior inferior iliac spine, posterior superior iliac spine, and posterior inferior iliac spine.
The superior margin of the ilium is called the iliac crest.
The posterior inferior part of the ilium ends at the greater sciatic notch.

Ischium

The ischium consists of a body.
The body forms the posterior two-fifths of the acetabulum.
The ischial ramus joins with the inferior ramus of the pubis.
The ischial tuberosity is a thickened portion where the trunk rests when seated.
The ischial spine is located on the upper, posterior part of the body, with a lesser sciatic notch below it.

Pubis

The pubis consists of a body, superior ramus, and inferior ramus.
The body forms about one-fifth of the anterior acetabulum.
The obturator foramen is formed by the junction of the ischial ramus and the pubis inferior ramus.

Bony Landmarks of Pelvis

Landmarks like the crest of the ilium, anterior superior iliac spine (ASIS), symphysis pubis, ischial tuberosity, and greater trochanter are important anatomical features.

True and False Pelvis

The greater pelvis is continuous with the abdominal cavity, bordered by the iliac crests and the ala of the iliac bones.
The lesser pelvis is inferior to this and includes the external genitalia and anal canal.

Birth Canal

The birth canal includes the pelvic inlet, cavity, and outlet.

Male and Female Pelvises

Male pelvis is deep and funnel-shaped with a narrower pubic arch.
Female pelvis is shallow, broad, and flaring with a wider pubic arch.
Obturator foramina are more oval in females and rounder in males.

Joints of the Pelvis

Sacroiliac joints (SI): connect the ilia and sacrum with an irregular gliding type of movement.
Hip joints: ball-and-socket type of synovial joints connecting the head of the femur with the acetabulum.
Pubic symphysis: connects the right and left pubic bones with a slightly movable fibro-cartilaginous joint.

Femur

The femur is the longest and largest bone in the body.
Key features include the head (proximal, rounded end), neck (slender region below the head), shaft (containing gluteal tuberosity, attachment for gluteus maximus, and linea aspera—attachment site for thigh adductors).
The proximal femur includes the greater and lesser trochanters and the fovea where the ligament of the head of the femur attaches.
The distal femur has epicondyles, condyles, and an intercondylar fossa.

Angles of Proximal Femur

The neck to shaft angle is about 125 degrees.
The longitudinal angle is approximately 10 degrees.
The anterior angle is approximately 15 to 20 degrees.

Muscle Attachments

Various muscles attach to the pelvis and the femur for hip and leg movements. Locations are detailed in provided diagrams.

Pathology

Pelvic pathologies include fractures (Pott's fracture, Jones fracture), congenital clubfoot, Paget's disease, osteoarthritis, osteomalacia, and rickets.

Review Questions

Various questions about pelvic anatomy, landmarks, bones, and joints are possible review points and are covered
Answers to the provided review questions are also available for practice and further study.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz explores various aspects of the anatomy of the pelvic and femoral joints. Questions cover the classification, structure, and function of key components like the sacroiliac joint and greater trochanter. Test your knowledge on the morphological differences and mobility of these regions.