Exam 8: The Skeletal System: the Appendicular Skeleton
The anatomical neck of the humerus is proximal to the surgical neck.
True
Give an anatomical description of the femur as it would appear from the posterior aspect.
The femur, or thigh bone, is the longest, heaviest, and strongest bone in the body. The proximal end of the femur consists of a rounded head and the neck of the femur is a constricted region distal to the head. The body (shaft) of the femur angles medially. The greater trochanter and lesser trochanter are projections that serve as points of attachment for the tendons of some of the thigh and buttock muscles. The lesser trochanter is inferior and medial to the greater trochanter. A ridge called the intertrochanteric crest appears between the posterior surfaces of the greater trochanter and lesser trochanter. Inferior to the intertrochanteric crest on the posterior surface of the body of the femur is a vertical ridge called the gluteal tuberosity. It blends into another vertical ridge called the linea aspera. The expanded distal end of the femur includes the medial condyle and the lateral condyle. These articulate with the medial and lateral condyles of the tibia. Superior to the condyles are the medial epicondyle and the lateral epicondyle, to which ligaments of the knee joint attach. A depressed area between the condyles on the posterior surface is called the intercondylar fossa.
The hip (coxal) bones unite anteriorly with each other to form a joint called the _____ _______. They articulate posteriorly with the _____.
pubic symphysis, sacrum
Give an anatomical description of the scapula, describing the features that are visible from the posterior aspect.
A large depression on the _____ surface of the ilium is called the iliac fossa.
The head of the radius articulates with the _____ notch of the ulna.
Name the articular surfaces of the hip (coxal) bones and identify the bones that articulate at each surface.
The olecranon, which forms the prominence of the elbow, is located on the distal end of the humerus.
Using the following directional terms, decide which structure of the pelvis is being described: medial to the ischium; inferior to the ilium; lateral to the pubic symphysis; medial to the acetabulum.
The greater tubercle of the humerus is separated from the lesser tubercle by the __________ _______.
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