Lab Quiz 1 Bones: pelvic girdle, lower limb, ankle, foot

What is the pelvic girdle composed of?

Hips and the sacrum

Male pelvic girdle

v shape

female pelvic girdle

u shape

coxal bone

also known as the hip bone, is comprised of three fused elements: the ilium, ischium, and pubis. It forms a major part of the pelvic girdle.

Ilium

the uppermost and largest part of the coxal bone, contributing to the structure of the pelvis.

Iliac Crest

the prominent ridge on the superior border of the ilium, serving as an attachment site for muscles and ligaments.

Greater sciatic notch

the large indentation located on the posterior aspect of the ilium, which allows for the passage of nerves and blood vessels from the pelvis to the lower limb.

ischium (THINK ABOUT ANATOMIC POSITION)

the curved, lower part of the coxal bone that forms the posterior portion of the pelvis, providing support during sitting and serving as an attachment point for muscles.

ischial tuberosity

the bony prominence on the ischium, providing support when sitting and serving as an attachment site for muscles and ligaments.

Pubis (THINK ABOUT ANATOMIC POSITION)

the medial and anterior portion of the coxal bone, contributing to the pelvic girdle and forming part of the pubic symphysis.

Auricular surface

the articular surface of the ilium that forms the joint with the sacrum, facilitating the connection between the pelvis and the vertebral column.

obturator foramen

the large opening in the pelvis formed by the pubis and ischium, allowing passage for nerves and blood vessels to the thigh.

acetabulum

The cup-shaped socket of the hip bone that receives the head of the femur, enabling hip joint articulation. “oil cup”

pubic symphysis

The fibrocartilaginous joint located between the left and right pubic bones, providing slight mobility and stability to the pelvis.

pubic arch

ormed by the inferior rami of the pubic bones, contributing to the pelvic inlet and shaping the pelvic cavity.

Femur

The longest and strongest bone in the human body, located in the thigh, articulating with the hip joint at its proximal end and the knee joint at its distal end.

femur head

The rounded proximal end of the femur that fits into the acetabulum of the pelvis, crucial for hip joint articulation.

femur fovea capitis

A small pit on the femur head where the ligamentum teres attaches, helping stabilize the hip joint.

Femur neck

The constricted region just below the femur head, serving as a pivotal connection between the head and the shaft of the femur.

femur greater trochanter

A large, bony prominence located on the lateral aspect of the femur, serving as an important site for muscle attachment and leverage.

femur lesser trochanter

A small, bony projection located on the medial aspect of the femur, serving as a key site for muscle attachment, particularly for the iliopsoas muscle.

femur linea aspera

A prominent longitudinal ridge located on the posterior surface of the femur shaft, providing attachment for muscles and contributing to the femur's structural strength.

femur medial condyle

rounded, articular surface located on the distal end of the femur, which articulates with the tibia at the knee joint.

femur lateral condyle

rounded, articular surface located on the distal end of the femur, which articulates with the tibia and fibula at the knee joint.

femur intercondylar fossa

deep notch located between the medial and lateral condyles of the femur, allowing for the attachment of ligaments and facilitating movement at the knee joint.

femur medial epicondyle

bony prominence on the medial side of the femur, providing attachment for ligaments and muscles, particularly the adductor muscles.

femur lateral epicondyle

bony prominence on the lateral side of the femur, serving as an attachment point for ligaments and muscles, including those involved in knee stabilization and movement.