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The answer is B. The ischial tuberosities are the parts of the pelvic girdle that bear the weight of the body when sitting, making them critical in supporting seated posture.
The answer is C. Meromelia describes the partial absence of a limb, such as a shortened arm or leg with missing distal structures. It results from incomplete limb bud development during embryogenesis
The answer is B. The male pelvic inlet is narrower and heart-shaped, while the female pelvic inlet is wider and more oval-shaped to accommodate childbirth.
The answer is B. The radius allows the forearm to rotate, enabling pronation and supination (turning the palm up or down) by crossing over the ulna
The answer is A. The pectoral girdle consists of the scapula (shoulder blade) and the clavicle (collarbone). It provides attachment points for muscles and connects the upper limb to the axial skeleton.
The answer is C. The shallow glenoid cavity allows for a greater range of motion in the shoulder joint but compromises stability, making the joint more prone to dislocation.
The answer is B. The acromion is a bony extension of the scapula that forms a protective arch over the shoulder joint, preventing dislocation and protecting underlying structures.
The answer is B. Craniosynostosis occurs when the sutures, including the fontanelles, close prematurely. This condition can result in abnormal skull shape and potentially impair brain development. The anterior fontanelle’s premature closure is a key indicator of craniosynostosis
The answer is C. The foramen ovale is a foramen in the sphenoid bone that allows the passage of the mandibular nerve (V3), a branch of the trigeminal nerve. The foramen rotundum transmits the maxillary nerve, and the foramen spinosum allows the passage of the middle meningeal artery.
The answer is A. The lacrimal bone is a small, thin bone located in the medial part of the eye socket (orbit). It articulates with several other bones of the skull to form the structure of the orbit and support the tear drainage system like Maxilla, Ethmoid, frontal bone, and inferior nasal concha
The answer is B. The hard palate separates the oral and nasal cavities. It is formed by the palatine processes of the maxilla anteriorly and horizontal plates of palatine bones posteriorly. The palatine bones form the posterior (back) part of the hard palate.
The answer is A. Mandibular fractures can disrupt the alignment of the jaw, difficulty in chewing, speaking and breathing. The mandible which is the only mobile bone of the maxillofacial region forms the lower third of the face. Owing to the prominence of the symphysis of the mandible, it is most vulnerable site to be traumatized during the road traffic accidents and, at the same time, most tempting site to be hit during the assault.
The answer is B. Scoliosis occurs is because of one of the vertebrae is deviates from the straight alignments
The answer is D. The medial attachment of the clavicle to the sternum and the lateral attachment to the scapula are essential for providing stability, mobility, and effective force transmission, which are critical for the diverse functions of the shoulder and upper limb.
A- Intervertebral discs does not provide support because it is not made of bone but fibrous cartilage
B-Discs are degenerate along with the age and literally the flexibility can be reduced and lead to the spinal stenosis
C- Correct answer
D- Intervertebral discs also can function as shock absorbers other than flexibility
A- correct answer
B- glenoid fossa is responsible in facilitates arm movement
C- synovial fluid is primarily produce by synovial membrane in the joint capsule
D- muscle movement is generated by muscle and tendons that acting on bones
A- olecranon fossa no directly support muscle attachment, but it accommodates the olecranon process during forearm extension
B- shock absorption is primarily handled by cartilage and soft tissue around the joint
C- correct answer
D- ligaments are responsible for limiting excessive extension
The answer is B. The thick features of the lumbar vertebrae are purposely to do the spinous process that serves as an attachment site for muscles and ligaments. Thus, lumbar vertebrae is designed to bear the weight of upper body so it must have the firm body and blunt.
A- correct answer
B- spinal cord literally supported by vertebral canal, meninges and associated ligaments
C- spinal cord is protected by vertebral canal
D- cerebrospinal fluid produced by choroid plexus in the brain’s ventricles
Axial skeleton is made up of the bones in your head, neck, back and chest. It is composed of 80 bones while Appendicular skeleton composed of the bones of the upper limbs and the lower limbs
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