Skeletal System

The roughened line running along the length of the posterior femur is the linea aspera. It serves as the attachment site for muscles of the thigh and provides stability during movements such as walking and running.

The last bone in the back is the coccyx, commonly known as the tailbone. It consists of three to five fused vertebrae and provides attachment points for muscles and ligaments. The coccyx supports the pelvis and assists with sitting and maintaining proper posture.

No, knee joint is a compound joint (condyloid joint between tibia and femur and saddle joint between femur and patella).
Yes, there is a pivot joint in the knee. Pivot joints can also be found in a person's neck, forearms, and other parts of the body. This is because the pivot joint moves by rotating.
The knee is mainly a hinge joint not a pivot joint.

There are the bones that make up the upper appendages. That's one on the list. Then there are bones of the lower appendages. That's the second on the list. So there is your list of groups of bones.

The tissue or structure located superior to the hyoid bone is the hyothyroid membrane.

The pelvis is made up of three bones; the ilium, the ischium, and the pubic bone. Attached to the back of the pelvis is the sacrum/coccyx which are two bones made of multiple vertebrae that are fused together. Also connected to the pelvic bone is the head of the femur (thigh bone) which sits in the acetabulum of the pelvis and creates the acetabulofemoral joint also known as the hip joint.

Troponin is another protein involved in skeletal muscle contraction. It works in conjunction with tropomyosin to regulate the interaction between actin and myosin filaments during muscle contraction.

Yes, and knee extension would be when the knee is straight.

If your knee cap is out of place, you may experience sudden pain, swelling, instability, or a popping sensation in your knee. You may also notice the knee cap visibly shifted to the side. It is important to seek medical attention if you suspect your knee cap is out of place to avoid further injury.

Yes. Caudal means of, in, or at the tail. The coccyx is the portion of the vertebral spine that is at the very bottom of the spine. It is believed to have once been a tail in humans and still can be elongated like a tail as a rare congenital condition.

These are called true ribs. They each have their own cartilage connection to the sternum.

Hi, Bone marrow is the spongy material found in the center of most large bones in the body. Bone marrow produces red blood cells, white blood cells and platelets. Along with a biopsy (the sampling of mostly solid tissue or bone), an aspiration (the sampling of mostly liquid) is often done on the same time. :) Bone marrow is not a bone. No, bone marrow is not a bone. Bone marrow is the substance in the bone that is a soft tissue and produces blood cells.

The triceps attaches to the high end of your arm and it also attaches below the elbow. The triceps that attach to the bones are called tendons, which are strong, muscular fiber thins that help support the muscles to the bones.

-Ulna bone: elbow bone

-Radius bone: Forearm bone

The radius is the bone of the forearm that extends from the lateral side of the elbow to the thumb side of the wrist. The radius is situated on the lateral side of the ulna, which exceeds it in length and size. It is a long bone, prism-shaped and slightly curved longitudinally.

A trochanter (which is a large bump for muscle attachment - it is larger than a tubercle or tuberosity)

An amoeba does not need a blood system because its body has other organelles that it uses to survive. Plus a blood system is made up of many different cells and an amoeba consists of only one cell, that is why it is called a single celled organism.

Haversian canals in compact bone contain blood vessels, nerves, and lymphatic vessels that supply nutrients and remove waste products to and from osteocytes within the bone. They provide a network for communication and transportation throughout the bone tissue to maintain its health and function.

The sternum and the skull are examples of flat bones. These bones are thin and broad, providing protection for internal organs and serving as attachment points for muscles.

The double membrane that covers the lungs and lines the thoracic cavity is called the pleura. It consists of two layers: the visceral pleura attached to the lungs and the parietal pleura lining the thoracic cavity. The pleura produces a small amount of fluid that helps reduce friction during breathing.

Yes. Human ribs are bones, called flat bones, and are part of the axial skeleton.

The atlantoccipital joint which is a gliding joint, not as some people believe it to be a pivot joint. The pivot joint in this area is the atlantoaxial joint which is between C1 & C2 and doers not come into contact with the skull.

Small canals run through the bones known as osteons. These canals are formed by concentric layers of bone material and contain blood vessels and nerves that supply nutrients to the bone tissue. The canals help nourish and maintain the bone's health.

It is not normal for your collarbone to be constantly popping. This could indicate an issue with the joint or surrounding structures and should be evaluated by a medical professional to determine the underlying cause and appropriate treatment.

An average adult has around 206 bones in their body. This number may vary slightly depending on factors like age and individual anatomy.