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Skeletal System

The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.

14,490 Questions

What part of the ear contains the three smallest bones in our body?

The 3 auditory ossicles are "little bones" found in the middle ear. They are the smallest bones in the human body, and each one has its own name:

  • tympanic side = malleus or hammer
  • middle = incus or anvil
  • oval window side = stapes or stirrup

Could I see a Picture of floating rib?

Hahahah no. But there are 4 floating ribs (2 each side). These are the bottom of the 12. Their posterior attachment is to T11 and T12 and they have no anterior atachment, they are not connected to the sternum by cartilage.

Two functions of bones are to protect body structures and to?

One of the main functions of the bones of the skeletal system is for movement, protection, and structure. Internal functions are blood cell production and storage.

What do doctors use to help heal fractured bones?

Doctors often use casts or splints to help stabilize fractured bones and promote healing. In some cases, surgical intervention may be necessary to realign the bones and secure them with hardware such as plates, screws, or pins. Physical therapy is also an important part of the healing process to help regain strength and mobility in the affected area.

What are metatarsal's?

the five long bones numbered I to V beginning with the bone on the medial side forming the skeleton of the anterior portion of the foot, articulating posteriorly with the three cuneiform and the cuboid bones, anteriorly with the five proximal phalanges.

How many bones do you have in your leg?

There are 4 bones in your leg

The femur bone

The tibia bone

The fibula bone

And the patella bone .

The strongest bone in a humans leg is the femur bone. Are leg is used for many things. Like running and jumping. can you add more to this answer

Which bones for the pectoral girdle?

The movable pectoral girdle bones are the scapulae and the clavicles. These bones must have a range of movement in order to allow the upper body to function properly.

What is the difference between cow femur and human femur?

There are many, many differences, not just one. The three most obvious differences is where humans have hands, cows have hooves, cows are covered thickly in hair whereas a human is only scarcely covered in hair, and cows walk on all fours but humans only walk on two legs. Other differences are in size and strength, body and head structure, skeletal structure, movement/mobility and how and what each species eats.

What route is taken by nutrients through a bone starting with periosteum and ending with an osteocyte in a lacuna?

The circulatory system brings blood containing nutrients and oxygen to the periosteum, which covers the bone. The periosteum is a thin membrane that contains nerves and blood vessels. Its main function is to provide nourishment to the bone. From the periosteum, nutrients and oxybgen go through the perforating canals to the central canal, and then to the canaliculi. The osteocyte nearest the central canal passes nutrients to the next osteocyte with arm-like extensions that extend into the canaliculi to the next osteocyte. At the terminal end of each extension, gap junctions connect the cytoplasm of each osteocyte so that nutrients/wastes can be passed between cells to/from the central canal.

What is the bone that connects your forearm to your shoulder?

There are 2 bones in your forearm. The ulna and radius. They are connected at the parietal end to the humerus forming your elbow and at the distal end to the carpals forming your wrist.

How does your skeleton compare to the steel framwork of a skyscraper?

Both the skeleton and steel framework provide structural support to the overall system - the body in the case of the skeleton, and the building in the case of the steel framework. Both are designed to withstand different types of stresses and forces while providing stability and allowing for movement or flexibility. However, the architecture and materials used in the construction of the steel framework are different from the biological composition and function of the human skeleton.

Where can you find a diagram of all 206 bones in the body?

You can find a diagram of all 206 bones in the body in anatomy textbooks, medical websites, or educational resources such as anatomical charts and posters. Online resources like Google Images or medical illustrations can also provide detailed diagrams of the skeletal system.

Do all ribs directly or indirectly articulate with the sternum?

No, not all ribs directly articulate with the sternum. Ribs 1 to 7 directly articulate with the sternum, while ribs 8 to 10 indirectly articulate with the sternum through the costal cartilages of the ribs above them. Ribs 11 and 12 are floating ribs that do not articulate with the sternum at all.

Axial flow turbomachines?

These are machines dealing with fluids, like (Axial Compressors, pumps and Fans). the term "Axial" is given due to the direction of inward and outward flow. In axial turbo machines the direction of outward flow is the same as the direction of the inward flow since the blades of the machines doesn't change the direction of flow.

What do surface markings on bones indicate?

The five types of surface markings on bones are, elevations and projections (general), processes formed where tendons or ligaments attach, processes formed for articulation with adjacent bones, depressions, and openings.

The second largest bone in the arm is?

The ulna is the second largest bone in the arm, situated on the pinky side (ulnar side) of the forearm. It runs parallel to the radius, which is the largest bone in the forearm. The ulna plays a crucial role in forming the elbow joint and stabilizing the forearm during activities.

In the anatomical position the umbilicus and knees are on what body surface?

In the anatomical position, the umbilicus (belly button) is on the anterior body surface, while the knees are on the anterior body surface as well.

The ends of the long bone are called?

Epiphyses. (Diaphysis is the middle part).

You might also be asking the name of the knobby parts on the ends, which articulate with the next bone and make up the joint: those are 'condyles'.

What does spongy bone produce?

Spongy bone produces red blood cells, white blood cells, and platelets through a process called hematopoiesis. It also helps to store and release minerals, such as calcium and phosphorus, to maintain bone health and overall body function.

What are the advantages of having large numbers of chromosomes?

Having a large number of chromosomes can provide genetic diversity and increase the potential for adaptation to changing environments. It can also allow for more efficient gene regulation and reduce the risk of harmful mutations affecting essential genes. Additionally, large numbers of chromosomes can support complex genetic interactions and contribute to species evolution and speciation.

Which flying reptile has hollow bones?

Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly.

What changes do broken bones undergo as they heal?

There are cells called osteocytes and osteoblasts and osteoclasts always crawling around inside and around bones. They constantly dissolve away bits of bone and constantly lay down new bits of bone. When a bone breaks the physical stresses and chemical signals attract more of these cells to lay down more new bone. Where the two broken ends of a bone touch the new bone laid down "glues" them together. Over time all the bone around the break gets dissolved and rebuilt bit by bit, effectively erasing the crack.