Skeletal Exam Study Guide

The highlighted structure serves to prevent anterior dislocation of the femur onto the tibia.

The structure highlighted in the question is the intervertebral disc. This is a structure located between the vertebrae in the spine, acting as a cushion and shock absorber. It consists of a tough outer layer called the annulus fibrosus and a gel-like inner core called the nucleus pulposus. The intervertebral disc allows for flexibility and movement in the spine while also providing support and protection to the vertebrae.

The correct answer is B.) greater horn.

The structure highlighted in the question is the 2nd metacarpal.

The highlighted area refers to a specific part of a bone. In this case, the correct answer is C) sphenoid.

The structure highlighted in the question is the greater trochanter. The greater trochanter is a bony prominence located on the proximal end of the femur, specifically on the lateral side. It serves as an attachment point for various muscles, including the gluteus medius and minimus.

The bone highlighted in the question is the vomer.

The structure highlighted in the question is the head.

The correct answer is B) costal groove. The costal groove is a shallow groove located on the inferior aspect of each rib. It runs along the inner surface of the rib and provides protection for the intercostal nerves and blood vessels that travel between adjacent ribs. This groove allows the nerves and blood vessels to be safely positioned and protected from external forces or injuries.

The structure highlighted in the question is the infraorbital foramen.

The highlighted structure articulates with the medial condyle of the tibia.

The correct answer is D) sternal angle. The leader line points to the area where it should be highlighted.

The sacrum is not part of the fusion that forms the hip bone. The hip bone is formed by the fusion of three bones: the ilium, the pubis, and the ischium. The sacrum is a triangular bone located at the base of the spine, and it is not involved in the formation of the hip bone.

The highlighted area is part of the palatine bone. The palatine bone is located in the back part of the nasal cavity and forms the posterior part of the hard palate. It also contributes to the formation of the floor and lateral walls of the nasal cavity.

The bone highlighted in the image is the patella. The patella, also known as the kneecap, is a small, triangular bone located in front of the knee joint. It acts as a protective covering for the knee joint and helps to increase the leverage of the quadriceps muscles during movements such as jumping and kicking.

This vertebra is an example of a(n) axis. The axis vertebra, also known as C2, is the second cervical vertebra in the spine. It is characterized by a bony projection called the odontoid process, which allows for rotation of the head.

The structure highlighted in this question is the radial head.

The highlighted structure refers to the structure that is being discussed in the question. In this case, it is referring to the structure that unites the two coxal bones anteriorly.

The structure highlighted is the 2nd proximal phalanx.

The structure highlighted in the question is the acromion. The acromion is a bony process that extends from the scapula and forms the highest point of the shoulder. It is easily identifiable as it is the most prominent part of the shoulder when viewed from the side.

The correct answer is A) capitate. The explanation for this is not available.

The structure highlighted in the question is the humeral head. This is the rounded, ball-shaped end of the humerus bone that articulates with the glenoid cavity of the scapula to form the shoulder joint.

The structure highlighted in the question is the zygomatic process. This process is a bony projection that extends from the temporal bone, forming part of the zygomatic arch. It is located on the side of the skull, near the cheekbone. The zygomatic process plays a role in providing support and attachment for muscles involved in chewing and facial expression.

The correct answer is D) head of femur. The acetabulum is a socket-like structure in the pelvis that articulates with the head of the femur, forming the hip joint. The head of the femur is a rounded ball-like structure that fits into the acetabulum, allowing for movement and stability of the hip joint.

The structure highlighted in the question is the glenoid cavity. The glenoid cavity is a shallow depression on the scapula bone that forms the socket for the head of the humerus bone. It is part of the shoulder joint and allows for the articulation and movement of the humeral head.

The structure highlighted in the question is the patellar surface.

The cuneiform is considered to be a short bone because it is cube-shaped and has a relatively equal length, width, and height. Short bones are typically found in the wrist and ankle joints and provide stability and support. The scapula, 1st metacarpal, rib, and femur are not considered short bones as they have different shapes and functions.

The structure highlighted in the question is the gluteal tuberosity.

The highlighted area is part of the petrous region of the temporal bone. The petrous region is the densest and most durable part of the temporal bone, housing important structures such as the middle and inner ear. It is located deep within the skull and contributes to the formation of the cranial base.

The head of the fibula articulates with the tibia just inferior to the lateral condyle.

The ethmoid bone is a complex bone located in the skull. It is made up of several parts, including the middle nasal concha, perpendicular plate, and crista galli. The inferior nasal concha, however, is not part of the ethmoid bone. The inferior nasal concha is a separate bone located in the nasal cavity, and it helps to regulate airflow and humidify the air we breathe.

The structure that is highlighted is the lateral border.

The structure highlighted in this question is the alveolar margin. The alveolar margin refers to the part of the jawbone that contains the sockets for the teeth. It is the ridge of bone that surrounds and supports the teeth in the upper and lower jaws. This structure is important for maintaining the stability and alignment of the teeth within the oral cavity.

The structure highlighted in the question is the ischial ramus. The ischial ramus is a part of the ischium bone, which is one of the three bones that make up the hip bone. It extends from the body of the ischium towards the pubic bone. The ischial ramus is important for providing support and stability to the pelvis and is involved in the attachment of various muscles and ligaments.

The highlighted bone in the image is the cuboid. This bone is located on the lateral side of the foot, between the calcaneus (heel bone) and the fourth and fifth metatarsals. It is cube-shaped and contributes to the stability and flexibility of the foot.

The correct answer is B) ischial tuberosity. The ischial tuberosity is a prominent bony structure located at the base of the pelvis. It is the part of the pelvis that we sit on and provides support and stability to the body when sitting. It is also an attachment site for various muscles, including the hamstrings. The other options listed are different structures in the pelvis, but they are not the highlighted structure in this question.

The correct answer is D) inferior articular processes. The inferior articular processes are highlighted in the structure being referred to. These processes are bony projections that extend downward from the vertebrae and articulate with the vertebrae below. They help to form the joints between adjacent vertebrae and play a role in the movement and stability of the spine.

The structure highlighted in the question is the ala.

The joint highlighted in the question is the patellofemoral joint.

The highlighted structures are likely referring to structures such as ligaments or tendons, which are known for their ability to absorb shock and reduce friction in joints. These structures help to cushion and protect the joint, allowing for smooth movement and preventing excessive wear and tear on the bones and cartilage. Therefore, the correct answer is E) reduce friction.

The hypoglossal canal is the structure highlighted in the question.

The structure highlighted in the question is the body. The body is the main portion of a vertebra, located anteriorly. It is a large, rounded structure that provides support and helps bear the weight of the body. The body is also the site of attachment for various muscles and ligaments.

The highlighted structure serves to attach the patella to the femur. The patella, also known as the kneecap, is a small bone located in front of the knee joint. It is connected to the femur bone through the patellar ligament, which helps stabilize the knee joint and allows for proper movement and function of the leg. The femur is the thigh bone and is the longest and strongest bone in the human body.

The sphenoid bone does not make up part of the orbit of the eye. The orbit of the eye is formed by several bones, including the zygomatic, lacrimal, and nasal bones. The sphenoid bone is located at the base of the skull and does not contribute to the structure of the eye socket.

The structure highlighted in the question is the cribriform plate. This is the part of the ethmoid bone located in the roof of the nasal cavity. It is perforated by many small holes, known as cribriform foramina, which allow the olfactory nerves to pass through from the nasal cavity to the brain. The cribriform plate is an important structure for the sense of smell.

The highlighted structure refers to the structure that is fused to something else, making it more vulnerable to tearing. The only option that fits this description is the lateral meniscus, as it is a structure in the knee joint that can be fused or attached to other parts of the knee. This fusion or attachment can make it more susceptible to tearing, as any strain or trauma to the knee joint can affect the integrity of the lateral meniscus. Therefore, the correct answer is B) lateral meniscus.

The highlighted structure articulates with the capitulum of the humerus. The term "articulates" suggests that the structure is involved in a joint or connection with another bone. The capitulum is a rounded projection on the distal end of the humerus bone that forms part of the elbow joint. It specifically articulates with the head of the radius bone, allowing for flexion and extension movements of the elbow joint. The other options (shaft, trochlea, olecranon fossa, medial epicondyle) are not directly involved in the articulation with the humerus.

The highlighted structure is referred to as the trochlear notch of the ulna. This is the correct answer because the trochlear notch is a specific anatomical feature of the ulna bone. It is a deep groove located on the proximal end of the ulna that articulates with the trochlea of the humerus, forming the elbow joint. The trochlear notch allows for smooth movement and stability of the joint during flexion and extension of the forearm.

The structure highlighted in the question is the iliac crest. The iliac crest is the curved ridge at the top of the hip bone, formed by the fusion of the ilium bones. It serves as an attachment point for various muscles, including the abdominal muscles and the latissimus dorsi. The iliac crest also acts as a landmark for identifying anatomical structures and is commonly used as a reference point in medical examinations and procedures.

The structure highlighted in the question is the radial tuberosity.