Anatomy And Physiology Unit 3

Synovial fluid is a viscous fluid found in the joints of the body. Its primary purpose is to lubricate the joints and reduce friction between the moving surfaces of the bones. This lubrication allows for smooth and painless movement, preventing wear and tear on the joint surfaces. Additionally, synovial fluid helps to nourish the cartilage and keep it healthy. Therefore, the correct answer is "lubricate and reduce friction."

Cytology is the science that studies cells. It is a branch of biology that focuses on the structure, function, and classification of cells. It involves the examination of cells under a microscope to understand their composition and behavior. Cytology plays a crucial role in various fields such as medicine, genetics, and microbiology, as it helps in diagnosing diseases, studying cell development, and understanding cellular processes. Hypokalemia and cytopathology are unrelated terms, while cyoneria is not a recognized scientific term. Therefore, the correct answer is cytology.

The correct answer is synovial. The synovial membrane is a thin connective tissue membrane that lines the joint cavities. It produces synovial fluid, which lubricates the joints and reduces friction between the bones during movement. The synovial membrane also helps in providing nutrients to the articular cartilage and removing waste products from the joint space.

The functional unit of the body refers to the smallest structural and functional component that carries out the essential functions of the body. The cell is considered the functional unit because it is the basic building block of all living organisms. Cells perform various functions such as metabolism, growth, reproduction, and response to stimuli. They work together to form tissues, organs, and systems, enabling the body to function as a whole. Therefore, the cell is the correct answer as it is the fundamental unit responsible for the functioning of the body.

Cells are composed of protoplasm, which is the living substance found within the cell membrane. Protoplasm consists of various components such as cytoplasm, nucleus, and organelles. It is responsible for carrying out all the vital functions of the cell, including metabolism, growth, and reproduction. Protoplasm is essential for the survival and functioning of cells, making it the correct answer to the question.