Identify the bone in the diagram below
The Correct Answer is ["Scaphoid bone"]
The carpal bones, also known as the wrist bones, are a group of eight small bones located in the wrist joint.
They are arranged in two rows of four bones each, with the rows separated by a space known as the carpal tunnel.
The carpal bones are held together by ligaments, and their shape and arrangement allow for a wide range of wrist movements.
The names of the carpal bones, from the proximal row to the distal row, are the scaphoid, lunate, triquetrum, and pisiform, and the trapezium, trapezoid, capitate, and hamate.
Each bone has a unique shape and surface features that allow it to articulate with adjacent bones, forming a complex network of joints that are important for wrist and hand movements.
The carpal bones are important because they provide stability to the wrist joint, allowing for precise movements of the hand and fingers.
They also help to transfer forces from the hand to the forearm, and vice versa.
Injuries to the carpal bones can result in wrist pain, instability, and decreased function of the hand and fingers.
Additionally, the arrangement of the carpal bones can affect the function of the median nerve, which runs through the carpal tunnel.
Compression or irritation of this nerve can result in carpal tunnel syndrome, a condition characterized by pain, numbness, and tingling in the hand and fingers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Dorsiflexion is the movement of the foot upwards towards the shin.
It involves the contraction of the muscles in the anterior part of the leg, such as the tibialis anterior.
Dorsiflexion is used when walking or running.
Choice A is incorrect because eversion is the movement of the foot outwards, away from the midline of the body.
Choice B is incorrect because plantarflexion is the movement of the foot downwards, away from the shin.
Choice D is incorrect because inversion is the movement of the foot inwards, towards the midline of the body.
Correct Answer is D
Explanation
The transverse foramina are openings in the transverse processes of the cervical vertebrae that allow the passage of the vertebral arteries and veins.
They are not found on any other vertebrae.
Choice A is incorrect because spinous processes are bony projections on the posterior aspect of all vertebrae that serve as attachment sites for muscles and ligaments.
Choice B is incorrect because transverse processes are lateral projections on all vertebrae that serve as attachment sites for muscles and ribs.
Choice C is incorrect because costal facets are articular surfaces on the thoracic vertebrae that articulate with the heads of the ribs.
They are found on all thoracic vertebrae except T11 and T123.
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