Skeletal System

osteoclast

The spine is composed of 24 different bones called vertebrae, 7 in your neck, 12 in your upper to mid back, and 5 in your low back.  The upper to mid back vertebrae are called thoracic vertebrae, and they are referred to as T1-T12 from top to bottom.  T3 & T4 are then the 3rd and 4th thoracic vertebrae from the top.  They are located right between your shoulder blades (called scapulae)!  

In an automotive engine, the wrist pin connects the piston to the connecting rod. It allows the piston to move up and down while the connecting rod transfers this motion to the crankshaft. This connection is crucial for proper engine operation and performance.

Bone marrow is a spongy tissue found in the center of bones, such as the hip and thigh bones. It is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. Bone marrow plays a crucial role in maintaining a healthy immune system.

The capillary tube is the hollow opening inside the thermometer that the liquid rises or lowers in so that you can read the temperature. The bulb is the bottom portion that holds the liquid and the part you use for contact to get a temperature reading.

Calvin B.

There are 33 bones in the spinal column. There are five regions in the column. In descending order there is the Cervical region which has 7 bone, Thoracic region which has 12 bones, Lumbar region which has 5 bones, Sacral region which has 5 bones (these bones are fused together), and the Coccygeal region that has 4 bones (these bones are fused together). The coccygeal region can actually have anywhere from 3-5 bones, but the average is 4.

The femur fits into the acetabulum at its proximal end.

A bone that is curved, thin, and flat is likely a flat bone. Flat bones, such as the ribs or certain skull bones, provide protection for internal organs and have a broad surface area for muscle attachment.

The cervical enlargement contains nerves that supply the upper limbs, shoulders, and neck muscles. It is responsible for coordinating motor function in this area of the body.

The spinous process of the 7th cervical vertebra (C7) is typically the longest and most prominent in the living person. It can often be easily palpated at the base of the neck where it forms a bony prominence known as the vertebra prominens.

facet (or zygopophysial) ligaments surround the posterior aspect of the facet (or zygopophysial) joints of the spine. they function to strengthen the joint and give extra support. facet joints of the spine are also known as posterior intevertebral joints.

Fetal skull moulding is the process by which a newborn's skull bones shift and overlap during passage through the birth canal, allowing for easier delivery. This molding is a normal part of the birthing process and typically resolves within a few days after birth as the skull bones return to their normal position.

These extensions are known as alveolar processes, and they support and anchor the teeth within the mouth. The alveolar processes of the mandible and maxilla are the bony ridges that contain the tooth sockets (alveoli). The shape and size of these processes vary depending on the number and type of teeth present in the mouth.

It is located on temporal side of the skull and it is where sounds enters the human ear leading to the tympanic membrane. It is sometimes referred to as the extermal auditory canal.

Osteoblasts are the cells responsible for building bone tissue. They produce the matrix that eventually becomes mineralized bone.

The needle-like threads of spongy bone are called trabeculae. These structures help provide support and strength to the bone while also allowing for the passage of blood vessels and bone marrow. Trabeculae help distribute forces and maintain the structural integrity of the bone.

The ethmoid bone in the skull is known for being full of small holes called foramina. These holes allow for the passage of nerves and blood vessels that supply various structures in the head.

The axon terminals of a nerve cell and the sarcolemma of a skeletal muscle cell join at the neuromuscular junction. This is where the nerve impulse triggers the release of neurotransmitters, such as acetylcholine, which initiate muscle contraction by binding to receptors on the sarcolemma.

In America there is a pie called american pie

Joints may be synovial (with a cavity) or fibrous. Synovial joints are filled with synovial fluid. Fibrous joints lack this. Fibrous joints are found in between the vertebrae.

Cartilage in is both joints. This can be hylaine or fibrocartilage. Both regenerate.

The synovial fluid is rather slippery and allows easy movement in those joints. If this joint is suddenly and rapidly pulled, the fluid doesn't fill quickly and a "snapping" sound is heard.

The medical term for partial dislocation of a joint is "subluxation." It refers to a partial or incomplete dislocation where the joint surfaces are partially separated but not completely out of place. Symptoms can include pain, swelling, and limited range of motion at the joint. Treatment may involve rest, physical therapy, or in some cases, joint stabilization.

No, it is not possible for a person to have two tailbones. The tailbone, also known as the coccyx, is a single, small bone located at the bottom of the spine in humans. If your son is experiencing unusual symptoms in his tailbone area, it is best to consult a healthcare professional for an accurate diagnosis.

The fontanels of a baby skull are made of connective tissue. They are soft spots between the skull bones that allow for some flexibility during birth and rapid brain growth in the first year of life. Over time, these fontanels close as the bones of the skull fuse together.

No, the lacrimal bone is a small, fragile bone that contributes to the bony orbit of the eye, while the lacrimal fossa is a depression on the medial wall of the orbit that houses the lacrimal sac, which is responsible for draining tears from the eyes.

The man's wrist is a component of the official man's hand. It is 18.23 cm in diameter. The wrist is also cast in platinum and held in the Louvre.