Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine Chapter 29: Problem 7
Which type of bone is cuboidal in shape and may be found in the wrist and ankle? a. sesamoid bones b. sutural bones c. short bones d. flat bones
Short Answer
Expert verified
Option C: short bones.
Step by step solution
01
Understand the Question
Identify the key characteristics: the bone is cuboidal in shape and is located in the wrist and ankle.
02
Review the Options
Examine the provided choices (a. sesamoid bones, b. sutural bones, c. short bones, d. flat bones) and determine their general characteristics.
03
Analyze Option A (Sesamoid Bones)
Sesamoid bones are small, round bones embedded within tendons. An example is the patella (kneecap). They do not fit the description.
04
Analyze Option B (Sutural Bones)
Sutural bones are extra bone pieces located within the sutures of the cranial bones. They are not found in the wrist or ankle.
05
Analyze Option C (Short Bones)
Short bones are roughly cube-shaped and provide support and stability with little movement. These bones can be found in the wrist (carpals) and ankle (tarsals).
06
Analyze Option D (Flat Bones)
Flat bones are thin, flattened, and typically curved, such as the sternum or bones of the skull. They do not match the description.
07
Conclusion
Based on the analysis, option C - short bones, fits the description of being cuboidal in shape and located in the wrist and ankle.
Unlock Step-by-Step Solutions & Ace Your Exams!
-
Full Textbook Solutions
Get detailed explanations and key concepts
-
Unlimited Al creation
Al flashcards, explanations, exams and more...
-
Ads-free access
To over 500 millions flashcards
-
Money-back guarantee
We refund you if you fail your exam.
Over 30 million students worldwide already upgrade their learning with 91影视!
Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Short Bones
Short bones are unique due to their almost cube-like shape. They are typically as wide as they are long, and their primary function is to provide support and stability with limited movement. These bones are found in both the wrist (carpal bones) and the ankle (tarsal bones). Short bones are characterized by a thin layer of compact bone on the outside and a spongy bone interior.
They have a high surface area to absorb shock and distribute load more evenly.
They have a high surface area to absorb shock and distribute load more evenly.
- Examples: Carpal bones in the wrist and tarsal bones in the ankle.
- Function: Stability and support with limited motion.
Sesamoid Bones
Sesamoid bones are special types of bones embedded within tendons. Their primary role is to reduce friction, tension, and stress on the tendon where it crosses over a joint. They can also protect tendons and improve the mechanical advantage of muscles. The patella (kneecap) is the most well-known sesamoid bone.
Unlike other bones, they do not attach directly to the skeleton but are instead part of the tendons.
Unlike other bones, they do not attach directly to the skeleton but are instead part of the tendons.
- Examples: Patella.
- Function: Reducing friction and assisting in joint movement.
Sutural Bones
Sutural bones, also known as Wormian bones, are extra bone pieces that occur within the sutures of the cranial bones in the skull. These bones are quite irregular in shape and size. They vary greatly between individuals in terms of number and location.
They do not play a significant role in the skeletal system beyond their presence in the cranial sutures.
They do not play a significant role in the skeletal system beyond their presence in the cranial sutures.
- Examples: Found in the sutures of skull bones.
- Function: Simply part of the cranial structure.
Flat Bones
Flat bones are thin, flattened, and usually a bit curved. These bones serve protective functions and provide areas for muscle attachment. They have two parallel layers of compact bone with a layer of spongy bone in between. Flat bones are found throughout the body in places like the skull, ribs, and shoulder blades.
These bones play a crucial role in protecting internal organs and providing surfaces for muscle attachment.
These bones play a crucial role in protecting internal organs and providing surfaces for muscle attachment.
- Examples: Sternum, ribs, scapulae, and bones of the skull.
- Function: Protection of organs and muscle attachment.
Wrist Bones
The wrist bones, also known as carpals, are a group of eight small bones located in the wrist. They are classified as short bones due to their cuboidal shape. The arrangement of these bones allows for the complex and versatile movements of the wrist. These bones are organized into two rows of four:
the proximal row and the distal row.
the proximal row and the distal row.
- Examples: Scaphoid, lunate, triquetral, pisiform, trapezium, trapezoid, capitate, and hamate.
- Function: Facilitating wrist movement and supporting the hand.
Ankle Bones
The ankle bones, similar to the wrist bones, are known as tarsals and fall under the category of short bones. They consist of seven bones that form the ankle and part of the foot's arch. These bones help in bearing the body's weight and enable movement and balance. The tarsal bones include the talus, which connects to the leg bones, and the calcaneus, which forms the heel.
These bones work together to support and stabilize the foot.
These bones work together to support and stabilize the foot.
- Examples: Talus, calcaneus, navicular, medial cuneiform, intermediate cuneiform, lateral cuneiform, and cuboid.
- Function: Weight bearing, movement, and stability.
