A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. In common usage, “sinus” usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it.

Is a sinus is an air cavity within certain bones?

A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. In common usage, “sinus” usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it.

What is a cavity within a bone quizlet?

sinus. a cavity in a bone.

Is the medical specialty practice that deals with the prevention and correction of disorders of the musculoskeletal system?

Orthopedics is a medical specialty that focuses on the diagnosis, correction, prevention, and treatment of patients with skeletal deformities – disorders of the bones, joints, muscles, ligaments, tendons, nerves and skin. These elements make up the musculoskeletal system.

What is a groove or furrow in a bone?

Sulcus. a groove or furrow in a bone. Meatus. a canal or tube-like passage.

What is sinus cavity?

The sinuses are four paired cavities (spaces) in the head. They are connected by narrow channels. The sinuses make thin mucus that drains out of the channels of the nose. This drainage helps keep the nose clean and free of bacteria. Normally filled with air, the sinuses can get blocked and filled with fluid.

Where is the sphenoid air sinus?

structure. The sphenoidal sinuses are situated back of the nose in the sphenoidal bone, which forms a forward part of the base of the skull and contains the depression, or fossa, for the pituitary gland.

What is appendicular skeletal system?

The appendicular skeleton is one of two major bone groups in the body, the other being the axial skeleton. The appendicular skeleton is comprised of the upper and lower extremities, which include the shoulder girdle and pelvis.

What is the microscopic lining of the medullary cavity called?

The medullary cavity has a delicate membranous lining called the endosteum. The outer surface of bone, except in regions covered with articular cartilage, is covered with a fibrous membrane called the periosteum.

What is a musculoskeletal specialist called?

The healthcare provider who specializes in bone and joint injuries and disorders is called an orthopedic surgeon, or an orthopedist. Orthopedists specialize in the musculoskeletal system.

What type of doctor specializes in the treatment of bones?

Orthopedic surgeons are doctors who specialize in the musculoskeletal system – the bones, joints, ligaments, tendons, and muscles that are so essential to movement and everyday life. With more than 200 bones in the human body, it’s an in-demand specialty.

What is the difference between tubercle and tuberosity?

Tubercle vs tuberosity A tubercle is a small rounded prominence, often a site of tendon or ligament attachment e.g. adductor tubercle of the femur. A tuberosity is larger, found in varying shapes and often rough in texture. The ulnar tuberosity is one example.

What is a fissure bone?

The term ” fissure ” applies to a line of fracture varying in length, the sides of which are in apposition, penetrating through, or partly. through, the solid shaft of a bone, and unattended by the separation. of fragments.