Anatomy Quiz 2

The false statement is regarding the transverse processes of T1 to T10. In reality, the transverse processes of T1 to T10 are relatively thin, not thick, and their dorsolateral surfaces do not contain transverse costal facets for articulation with rib tubercles.

The jugular foramen is formed by contributions from the occipital and temporal bones, and not the sphenoid bone. Option A and B, as well as the option stating 'all of the above,' are incorrect as only the occipital and temporal bones contribute to the formation of the jugular foramen.

False ribs, also known as vertebrochondral ribs, are ribs 8-10 because they do not attach directly to the sternum. Ribs 10-12 are considered floating ribs, while ribs 8-12 as an inclusive range is incorrect because ribs 11 and 12 are actually considered floating ribs. Ribs 9-10 is incorrect as rib 9 attaches directly to the sternum, making it a true rib.

The mylohyoid line is a prominent ridge that runs along the inner aspect of the mandible and serves as the origin of the mylohyoid muscle. It is not present on the zygomatic, inferior nasal concha, or maxilla.

The ethmoid bone is responsible for forming the area that contains the olfactory bulb, which is involved in the sense of smell.

The correct answer is the pedicles. Pedicles are paired structures that arise along the posterolateral margins of the vertebral body and connect it to the laminae, forming part of the neural arch.

The posterior cranial fossae supports the cerebellum, occipital lobes of cerebral hemispheres, pons, and medulla oblongata, so the correct answer is 'all of the above'. The incorrect answers are different structures not directly supported by the posterior cranial fossae.

The sphenoid bone does not include the cribriform plate, which is actually part of the ethmoid bone. The tuberculum sellae, posterior clinoid process, and anterior clinoid process are all structures that are part of the sphenoid bone.

The correct answer is infra-orbital foramen because it is the opening in the maxilla bone that allows the infra-orbital nerve, a major sensory nerve from the face, to pass through and reach the skin of the face.

The ethmoid, sphenoid, and palatine bones are all considered part of the cranium, while the lacrimal and palatine bones are not.

The coracoid process is a prominent beak-like projection on the scapula that serves as an attachment site for the short head of the biceps brachii muscle. The costal tuberosity, acromion, and olecranon process are not the features described in the question.

The navicular bone is actually located on the medial side of the ankle, not the lateral side as stated in the incorrect statement.

The scaphoid and lunate bones articulate with the radius, not the pisiform or triquetrum.

The acetabulum is the cup-shaped socket located on the lateral surface of the hip bone that articulates with the head of the femur. Pubic crest, auricular surface, and obturator groove are not directly related to the articulation between the hip bone and femur.

Fractures of the humerus typically occur at the surgical neck, which is a constricted region of the bone. Fractures at the greater tubercle, humeral head, and anatomical neck are less common.

The correct answer is the pectineal line, as it is the structure that begins near the symphysis and extends diagonally across the pubis to merge with the arcuate line.

When seated, the body weight is primarily borne by the ischial tuberosities, which are the bony protrusions at the base of the pelvis. This helps to support the weight of the body when sitting down.

The radial styloid process is one of the structures that participates in the wrist joint and helps to stabilize it. The ulnar head, ulnar styloid process, and ulnar notch of radius are not directly involved in stabilizing the wrist joint.

The false statement is that the radial groove runs along a margin of the deltoid tuberosity on the anterior surface. In reality, the radial groove is found on the posterior surface of the humerus and serves as a path for the radial nerve.

Freely moveable joints, also known as synovial joints, are classified as diarthroses due to their capability of allowing a wide range of motion.

In the anatomy of the ankle, the major ligaments are the deltoid ligament (option B) and the lateral ligaments (option C). The tibiofibular ligament and medial ligaments are not considered major ligaments of the ankle.

Plane joints allow sliding or gliding movements in flat surfaces, while condylar joints are biaxial, ball-and-socket joints have the greatest range of motion, and hinge joints allow movement in only one plane.

The correct classification of articulation for the distal articulation between the tibia and fibula is syndesmosis, which refers to a type of joint where the bones are connected by ligaments.

Bursae are not found around all synovial joints, as they may develop in abnormal locations.

The incorrect answers provided do not accurately describe joints of the ankle and foot as related to the false statement in the question.

The ligamentum flavum connects the laminae of adjacent vertebrae, while the ligamentum nuchae, anterior longitudinal ligament, and posterior longitudinal ligament serve different purposes in the spinal structure.

Articulations identified as 'synostoses' are immovable joints, which falls under the category of synarthroses. Symphyses are cartilaginous joints, diarthroses are freely movable joints, and gomphoses are the peg-in-socket joints commonly found in teeth.