1.
A process on the femur is called:
Correct Answer
A. Trochanter
Explanation
A process on the femur is called a trochanter. The trochanter is a large, bony prominence that serves as a site for muscle attachment. It is specifically found on the upper part of the femur, near the hip joint. The trochanter provides stability and strength to the femur and plays a crucial role in the movement and function of the hip joint.
2.
A process on the humerus is called a:
Correct Answer
B. Tubercle
Explanation
A process on the humerus is called a tubercle. A tubercle is a small, rounded projection or bump on a bone. It is typically smaller than a tuberosity and serves as a site for muscle or ligament attachment. The humerus is the bone located in the upper arm, and a tubercle on the humerus would provide an attachment point for muscles or ligaments in that area.
3.
A process on the scapula is called a:
Correct Answer
C. Spine
Explanation
A process on the scapula is called a spine. The scapula, also known as the shoulder blade, has several bony projections or processes. One of these processes is referred to as the spine. The spine of the scapula is a long, prominent ridge that runs along the posterior (back) surface of the bone. It provides attachment points for muscles and ligaments, contributing to the stability and movement of the shoulder joint. The other options, tubercle, tuberosity, and trochanter, are terms used to describe processes on other bones, such as the humerus or femur, and are not specific to the scapula.
4.
A process on the ischium is called a:
Correct Answer
C. Tuberosity
Explanation
A process on the ischium is called a tuberosity. A tuberosity is a rounded prominence or projection on a bone, which serves as an attachment site for muscles, tendons, or ligaments. In the case of the ischium, the tuberosity refers to a bony prominence located on the lower part of the pelvis. This tuberosity provides attachment for various muscles, including the hamstring muscles, and plays a role in supporting the weight of the body during sitting or weight-bearing activities.
5.
A process on the tibia is called a :
Correct Answer
C. Crest
Explanation
A process on the tibia is called a crest. A crest is a prominent ridge or projection on a bone. In the case of the tibia, it refers to a bony ridge or elevation that can be felt or seen on the surface of the bone. The crest on the tibia serves as an attachment point for muscles, tendons, and ligaments, providing stability and support to the leg.
6.
A process on the atlas is called a:
Correct Answer
B. Wing
Explanation
A process on the atlas is called a wing because the atlas is the first cervical vertebra in the spinal column and it has bony projections on its sides that resemble wings. These wings provide attachment points for muscles and ligaments, allowing for movement and stability of the head and neck.
7.
Joint surfaces are called:
Correct Answer
B. Articular surfaces
Explanation
Joint surfaces are called articular surfaces because they are the surfaces where two bones come into contact with each other within a joint. These surfaces are specifically designed to allow smooth movement and provide stability to the joint. The term "articular" refers to the fact that these surfaces are involved in the articulation or joining of bones.
8.
A large, round articular surface found on the distal end of the humerus and femur is known as:
Correct Answer
D. Condyle
Explanation
A large, round articular surface found on the distal end of the humerus and femur is known as a condyle. A condyle is a rounded prominence that forms part of a joint, allowing for movement and articulation with another bone. In this case, the condyle on the distal end of the humerus and femur helps to form the elbow and knee joints respectively, allowing for flexion and extension of the limbs.
9.
A flat articular surface found on carpal and tarsal bones are known as:
Correct Answer
D. Facet
Explanation
A flat articular surface found on carpal and tarsal bones is known as a facet. Facets are smooth, flat areas that allow bones to articulate or come together at a joint. They provide stability and allow for smooth movement between the bones. Unlike condyles, which are rounded articular surfaces, facets are flat and provide a more limited range of motion.
10.
A somewhat spherical articular surface on the proximal end of a long bone is known as a:
Correct Answer
A. Head
Explanation
The correct answer is "head" because a somewhat spherical articular surface on the proximal end of a long bone is commonly referred to as the head. The head of a bone usually fits into a corresponding socket or cavity, allowing for smooth movement and articulation between bones. This term is commonly used in anatomical descriptions to describe the rounded or ball-like structure at the end of a bone.