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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 is the condition known as an abnormal increase in the outward curvature of the thoracic sp ine as viewed from the side?

The condition you are referring to is called kyphosis. It commonly results in a hunched or rounded back posture and can be caused by factors such as poor posture, osteoporosis, or congenital issues. Treatment options may include physical therapy, bracing, or in severe cases, corrective surgery.

What is the inside of your knee called?

It's actually the "antecubital" area or region.

Bodily movement produced by skeletal muscles is called?

Skeletal muscles are attached to the bones by tough cords called tendons. When nerve signals are sent from the brain and spinal cord, these muscles contract to produce movement.

What are the two systems which make up the musculoskeletal system?

You have muscular system, made of muscles and skeletal system, made of bones; which make up the musculoskeletal system.

What is the skull used for?

The skull is a structure that houses and protects the brain. It also provides support for the face and serves as an attachment point for muscles that control facial expressions and chewing. Additionally, the skull plays a role in forming the shape of the head and protecting sensory organs such as the eyes and ears.

How does the muscular system interact with the skeletal system to create movement?

The muscular system and skeletal system work together to create movement. Muscles are attached to bones via tendons and when muscles contract, they pull on the bones, causing movement at the joints. This coordinated effort allows for the body to perform various movements such as walking, running, and lifting objects.

Are the red bone marrow produce red blood?

Yes, red bone marrow contains stem cells that have been transformed into functional neural cells.

Can you still move your thumb if its broke or fractured?

That depends on the type of fracture. You can still move your thumb, if there is crack fracture. It will be painful affair. When there is complete fracture, the distal fragment can move, as the muscles are still contract. This is again very painful.

What is the success of a bone marrow transplantation?

A bone marrow transplant takes a donor’s healthy blood-forming cells and puts them into the patient’s bloodstream, where they begin to grow and make healthy red blood cells, white blood cells and platelets. Patients receive high doses of chemotherapy to prepare their body for the transplant. Then on transplant day, the patient receives the donated cells in a process that is like getting blood or medicine through an intravenous (IV) catheter, or tube.

What is the most inferior portion of the sternum?

The xiphoid process is the most inferior portion of the sternum. The superior section is the manubrium, and the medial portion is the body.

Which muscle tissue connects bone to bone and muscle to bone?

Tendons are the muscle tissues that connect muscle to bone, whereas ligaments are the tissues that connect bone to bone. Tendons are strong, fibrous cords that help facilitate movement by transmitting force from muscle to bone. On the other hand, ligaments provide stability and support to joints by connecting bones together.

The lower extension of the breastbone is the xiphoid process?

Some say the xiphoid remains cartilage, others say it ossifies by adulthood. My opinion is that, if ossified, the xiphoid process is a flat bone of the axial skeleton, b/c the sternum is categorized as a flat bone and its 3 parts are manubrium, body, and xiphoid. These 3 are mainly cancellous bone with a thin layer of compact (AKA cortical) bone per page 143 of Google Books, "The Anatomy and Biology of the Human Skeleton" by Steele and Bramblett.

http://www.mnsu.edu/emuseum/biology/humananatomy/skeletal/skeletalsystem.html

(4 categories of bones--long, short, flat, and irregular; sternum labeled as flat)

What are ankle bones considered as?

Ankle bones are considered as tarsal bones. They include the talus, calcaneus, navicular, cuboid, and three cuneiform bones. These bones together form the ankle joint and provide stability and support to the foot.

Which two body systems does the femur belong to?

The Femur belongs to the skelital and the circulatory system because new red blood cells are formed in the marrow of the femur.

What process determines bone shape?

Bone shape is primarily determined by genetic factors, specifically the genes that play a role in bone development and growth. Additionally, mechanical forces such as weight-bearing and muscle activity can influence bone shape through a process known as bone remodeling. Furthermore, hormonal factors, nutrition, and overall health can also play a role in bone formation and shape.

What is a sudden painful involuntary contraction of a muscle called?

A sudden painful involuntary contraction of a muscle is called a muscle cramp. This can happen due to various reasons such as dehydration, muscle fatigue, or poor blood circulation. Stretching and massaging the affected muscle can help alleviate the discomfort.

Where is the distal epiphysis?

The distal epiphysis is the end of a long bone that is farthest from the center of the body, like the end of the femur near the knee joint. It is covered with articular cartilage and plays a role in joint formation and movement.

Explain the 4 major functions of the skeleton?

Support: ex. pelvis supports internal organs
Protection: Skull protects brain, vertebrae proctects spinal cord
Movement: Skeletal Muscles pull against bones
Mineral Storage: Calcium and Phosphate
Hematopoiesis: Blood formation

What organ is on your right side by rib cage?

There is a kidney and the liver is on the right side.

Why do athletes have denser bones than non-active people?

Athletes consistently put force on their bones through activity. Force causes tiny electrical currents within the bone. These electrical currents stimulate the bone-forming activity of Osteoblasts. Since Osteoblasts produce bone tissue, this causes the bone to become denser and stronger.

What are the differnt types of bones?

There Are More Than 2 Types Of Human Bones, There are 206 Bones In The Human Body So There Are MANY Differences. There are five types of human bone:

Long bones are hollow, cylindrical (though somewhat curved), and long as the name suggests. They have epiphyses at their ends and are therefore involved in growth, they participate in large movements, and are layered: the most superficial layer is termed compact bone, it is dense and very hard; the layer directly deep to that is spongy/cancellous bone, which very narrowly lines the compact bone except at the ends, which are all but composed of it. It is very light, and houses the red bone marrow - and hence is the site of blood production in adults. The deepest layer is the medullary cavity: the hollow part of the bone which contains yellow bone marrow - mostly adipocytes and therefore an energy reserve. Yellow bone marrow replaces the red marrow in the medullary cavity with age; in newborns, all marrow is red.

The long bones include: the femur, radius, humerus, and phalanges.

The other bones are mostly composed of spongy bone without marrow, and surrounded by an apical layer of compact bone.

Short bones are almost cube shaped; very nearly equal in length and width. They are involved in fine movements.

The short bones include: the carpals and tarsals.

Flat bones are typically thin, strong, protect the internal organs, and provide a vast surface for muscle attachment.

Flat bones include: the scapulae, sternum, ribs, and cranial bones.

Irregular bones are complex in shape and can't be grouped into any of the previous categories.

Irregular bones include: vertebrae, some facial bones.

Sesamoid bones are those embedded within tendons. Their function is not completely understood but speculated to involve reducing friction, altering the direction of muscle pull, and modifying joint pressure. They are not well developed for their function in adults (recent evolutionary modifications) and can be prone to injury.

Sesamoid bones include: the patella, the pisiform.