Connective Tissue and Marfan Syndrome Concepts

What is the primary cause and effect of Marfan Syndrome on the body?

• A bacterial infection leading to muscle atrophy.

• A viral infection causing neurological damage.

• A genetic defect in connective tissue, leading to its weakening.

• An autoimmune disorder that attacks bone marrow.

Which of the following is considered one of the four major classes of connective tissue?

• Nervous tissue

• Epithelial tissue

• Muscle tissue

• Blood

Which of the following is NOT a primary function of connective tissue?

• Binding and supporting other tissues.

• Producing hormones for bodily regulation.

• Insulating the body and storing energy.

• Transporting substances throughout the body.

All types of connective tissue share a common origin from which embryonic tissue?

• Ectoderm

• Endoderm

• Mesenchyme

• Neuroectoderm

What is the primary characteristic that distinguishes connective tissues from other tissue types, such as epithelial or muscle tissue?

• They are primarily composed of living cells packed tightly together.

• They have a high degree of vascularity in all forms.

• They are mostly composed of nonliving extracellular material.

• They are exclusively responsible for movement and contraction.

What is the primary function of glycosaminoglycans (GAGs) within the extracellular matrix?

• Providing tensile strength to tissues.

• Forming a branching framework for elasticity.

• Trapping water to create a gel-like consistency.

• Supporting delicate organ networks.

Which type of fiber is known for its exceptional tensile strength, being stronger than steel of the same size, and is the most abundant fiber in connective tissue?

• Elastic fibers

• Reticular fibers

• Collagen fibers

• Myosin fibers

What is the general term for immature connective tissue cells that are actively dividing and secreting the ground substance and fibers of the extracellular matrix?

• -cyte cells

• -blast cells

• Macrophages

• Leukocytes

Which type of connective tissue cell is responsible for phagocytizing bacteria, foreign materials, and dead cells, thus playing a crucial role in immune defense?

• Chondroblasts

• Osteocytes

• Macrophages

• Fibroblasts

Marfan syndrome primarily affects which component of the extracellular matrix, leading to weakness in structures like the aorta?

• Collagen fibers

• Reticular fibers

• Ground substance

• Elastic fibers