Intro A&P: tissue types, integumentary, skeletal, and muscular systems.
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- What are the four primary tissue types in the human body?
- Epithelial, connective, muscle, and nervous tissue.
- What is the primary function of epithelial tissue?
- To cover body surfaces, line cavities, and form glands.
- Which tissue type transmits electrical signals throughout the body?
- Nervous tissue.
- Name the three types of muscle tissue.
- Skeletal, cardiac, and smooth muscle.
- What is the main component of the extracellular matrix in connective tissue?
- Protein fibers (collagen and elastin) and ground substance.
- What distinguishes loose connective tissue from dense connective tissue?
- Loose connective tissue has loosely packed fibers with more ground substance; dense connective tissue has tightly packed fibers.
- Which tissue type makes up the brain and spinal cord?
- Nervous tissue.
- What are the two main layers of the skin?
- The epidermis and the dermis.
- Which layer of skin contains melanin-producing cells?
- The epidermis, specifically in the basal layer.
- What is the epidermis?
- The outermost layer of skin, composed primarily of epithelial tissue.
- What is the dermis?
- The thick layer of skin beneath the epidermis, composed of connective tissue.
- Name the subcutaneous layer beneath the dermis.
- The hypodermis, also called the subcutaneous tissue or superficial fascia.
- What type of gland produces sebum, the oily secretion on the skin?
- Sebaceous glands.
- Where are sweat glands located in the skin?
- In the dermis, with ducts extending through the epidermis.
- What protein gives skin its strength and elasticity?
- Collagen and elastin.