Lower Body Bones Lab Notes

Lower Body - Bones Study Notes

Introduction

  • This study guide covers the anatomical structure of the lower body bones, focusing specifically on the pelvic girdle, femur, tibia, fibula, and bones of the foot.

Lab Requirements

  • Materials Needed for the Lab:

    • Colored pencils/markers

    • Printed lab instructions

    • E-text: Get Body Smart

    • The Bone Box (a tool for practicing bone markings)

Lab Process

  • Learning Objectives:

    • Understand the names of bones and bone markings through visual aids.

    • Color bone markings on diagrams to reinforce learning.

    • Utilize Get Body Smart for interactive learning about bones.

    • Engage with The Bone Box for additional practice in naming bones and their markings.

Bones to be Learned in This Lab

  • List of Bones:

    • Os coxae (hip bones)

    • Femur (thigh bone)

    • Tibia (shin bone)

    • Fibula (smaller bone of the lower leg)

    • Tarsals (bones of the ankle)

    • Metatarsals (long bones in the foot)

    • Patella (kneecap)

    • Phalanges (toe bones)

The Pelvic Girdle

  • Key Structures of the Pelvic Girdle:

    • Iliac Crest

    • Ilium

    • Iliac Fossa

    • Anterior Superior Iliac Spine

    • Anterior Inferior Iliac Spine

    • Ischium

    • Pubis

    • Acetabulum (the socket for the femur)

    • Obturator Foramen

    • Sacroiliac Joint (connects the sacrum to the pelvis)

Features of the Pelvic Girdle

  • Os Coxae:

    • Comprised of two joined bones at the symphysis pubis.

    • The structure includes three regions: iliac, ischium, and pubis.

Os Coxae Bone Markings

  • Essential Markings to Know in Os Coxae:

    • Iliac crest

    • Anterior gluteal line

    • Anterior superior iliac spine

    • Anterior inferior iliac spine

    • Body of ilium

    • Inferior gluteal line

    • Posterior gluteal line

    • Posterior superior iliac spine

    • Posterior inferior iliac spine

    • Greater sciatic notch

    • Acetabulum

    • Ischial spine

    • Lesser sciatic notch

    • Body of ischium

    • Ischial tuberosity

    • Ramus of ischium

    • Obturator foramen

    • Inferior ramus of pubis

    • Body of pubis

    • Superior ramus of pubis

    • Pubic tubercle

    • Iliac fossa

    • Auricular surface

    • Location of symphysis pubis

Male vs. Female Pelvis Comparison

  • Differences in Pelvic Structure:

    • Male Pelvis:

    • More massive, rough, heavier.

    • Upper pelvis is relatively vertical.

    • Deeper and projects farther above the sacroiliac joint.

    • Narrow and deeper overall.

    • Less movable, more vertical structure.

    • Anterior superior spines closer together, causing less flaring.

    • Heart-shaped pelvic inlet.

    • Smaller and narrower acetabulum.

    • Female Pelvis:

    • Less massive, smoother, more delicate.

    • Pelvis tilted forward at the upper end.

    • Shallower, does not project as far above the sacroiliac joint.

    • Wider and shallower.

    • More movable, tilted posteriorly.

    • Anterior superior spines positioned farther apart, allowing for wider flaring.

    • Round or oval-shaped pelvic inlet.

    • Larger and wider acetabulum.

Activities for the Pelvic Girdle

  • Color the Os Coxae.

  • Use Get Body Smart to learn bone markings conceptually.

  • Practice bone markings through The Bone Box interactive tool.

The Femur

  • Essential Markings to Know in Femur:

    • Greater trochanter

    • Intertrochanteric line

    • Fovea capitis

    • Head

    • Neck

    • Lesser Trochanter

    • Spiral Line

    • Gluteal tuberosity

    • Linea aspera

    • Adductor tubercle

    • Intertrochanteric crest

    • Medial supracondylar line

    • Popliteal surface

    • Medial epicondyle

    • Medial condyle

    • Lateral supracondylar line

    • Lateral epicondyle

    • Lateral condyle

    • Intercondylar fossa

    • Patellar surface

Activities for the Femur

  • Color the Femur.

  • Use Get Body Smart to explore the femoral bone markings interactively.

  • Practice bone markings via The Bone Box.

Tibia and Fibula

  • Key Markings for the Patella:

    • Known as the patella or kneecap.

    • It is the largest sesamoid bone in the body.

  • Essential Markings to Know in Tibia:

    • Medial condyle

    • Lateral condyle

    • Tibial tuberosity

    • Anterior crest

    • Medial malleolus

Note on Left and Right Bones

  • When studying the tibia and fibula, observe the position of the medial condyle relative to the lateral condyle to distinguish between left and right bones.

Activities for Tibia and Fibula

  • Color the Tibia and Fibula.

  • Use Get Body Smart for understanding bone markings.

  • Reinforce knowledge through The Bone Box.

The Feet

  • Anatomy of the Foot:

    • Tarsals (bones of the ankle)

    • Metatarsals (long bones in the foot)

    • Phalanges (serial bones comprising the toes)

Tarsal Bones Include:

  • Tarsals:

    • Distal phalanx I

    • Proximal phalanx I

    • Medial cuneiform

    • Intermediate cuneiform

    • Lateral cuneiform

    • Navicular

    • Talus

    • Calcaneus (heel bone)

    • Cuboid

Views of the Tarsal Bones

  • Superior (Dorsal) View and Inferior (Plantar) View:

    • Distal group and proximal group highlights in relationship to the bones.

Activities for the Feet

  • Color the bones of the ankle and feet.

  • Explore bone markings using Get Body Smart.

  • Practice through The Bone Box.