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Questions and Answers
Which part of the humerus is considered the articular component that interacts with the radius?
What is the main function of the Olecranon in the ulna?
Which carpal bone is located laterally in the proximal row of the carpus?
Which bones comprise the hip bone (os coxae)?
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Which structure forms the carpal tunnel?
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What type of bone is the scapula classified as?
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What feature of the clavicle is correct regarding its shape?
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Which part of the clavicle is described as being robust and quadrangular in shape?
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What is the function of the glenoid cavity on the scapula?
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Where is the coracoid process located?
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What describes the costal surface of the scapula?
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How is the body of the clavicle characterized?
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Which bone is the longest and largest in the upper limb?
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Which structure is part of the true pelvis?
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What is the largest sesamoid bone in the human body?
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Which bone is more laterally positioned in the leg?
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Which part of the femur is most commonly fractured?
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What are the tarsal bones primarily associated with?
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The inferior articular facet is found on which bone?
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Which part is not included in the ischium structure?
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Which bones are included in the digital bones of the foot?
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Study Notes
Upper Extremity Skeleton
- Scapula: Triangular bone situated over ribs 2-7; has costal (anterior) and dorsal (posterior) surfaces, with superior, lateral, medial borders, and angles.
- Key processes of scapula include:
- Spine of scapula
- Acromion
- Coracoid process
- Clavicle: Palpable and subcutaneous, with an S-shaped contour; connects manubrium to acromion.
- Humerus: Longest and largest upper limb bone consisting of proximal end (head, anatomical neck, greater and lesser tubercles), body, and distal end (capitulum and trochlea for joint articulation with radius and ulna).
- Forearm Bones: Comprise of radius (lateral) and ulna (medial).
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Wrist and Hand:
- Carpal bones: 8 total, with proximal row (scaphoid, lunate, triquetral, pisiform) and distal row (trapezium, trapezoid, capitate, hamate).
- Carpal tunnel: Formed by a fibrous retinaculum over the carpal groove.
Lower Extremity Skeleton
- Regions include the gluteal, thigh, leg, and foot.
- Pelvis: Comprised of sacrum, coccyx, and hip bones (ilium, ischium, pubis).
- Ilium: Features include body (true pelvis), ala (false pelvis), iliac crest, and various spines.
- Ischium: Contains the body, ramus, ischial spine, and notches.
- Pubis: Composed of body, superior ramus, and inferior ramus.
- Hip Bone: Forms acetabulum and obturator foramen.
Femur and Knee
- Femur: Represents about one-fourth of a person's height; proximal end features greater trochanter, lesser trochanter, intertrochanteric line, and neck (common fracture site).
- Distal end consists of medial and lateral condyles, medial and lateral epicondyles, and patellar surface.
- Patella: Largest sesamoid bone, triangular in shape with an apex and a base.
Leg Skeleton
- Comprised of tibia (medial) and fibula (lateral).
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Tibia:
- Proximal end includes medial and lateral condyles, tibial tuberosity, and superior articular surface.
- Distal end features medial malleolus and fibular notch.
- Fibula: Includes head, neck, and various borders and surfaces.
Foot Skeleton
- Tarsal Bones: 7 total, including talus, calcaneus, navicular, 3 cuneiforms, and 1 cuboid.
- Metatarsal Bones: 5 total.
- Digital Bones (Phalanges): 14 total, forming the toes.
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Description
Explore the intricate anatomy of the upper and lower extremity skeleton. The quiz covers bones such as the scapula, clavicle, humerus, and the structure of the forearm, wrist, and hand. Additionally, learn about the regions of the lower extremity including the gluteal and thigh sections.
